INVESTIGADORES
BUTELER micaela
artículos
Título:
Cultivar Preferences of Ovipositing Wheat Stem Sawflies as Influenced
Autor/es:
D. K. WEAVER; BUTELER, M.; M. L. HOFLAND
Revista:
JOURNAL OF ECONOMIC ENTOMOLOGY
Editorial:
ENTOMOLOGICAL SOC AMER
Referencias:
Año: 2009 vol. 102 p. 1009 - 1009
ISSN:
0022-0493
Resumen:
The wheat stem sawßy, Cephus cinctus Norton, causes severe losses in wheat grown in the northern Great Plains. Much of the affected area is planted in monoculture with wheat, Triticum aestivum L., grown in large Þelds alternating yearly between crop and no-till fallow. The crop and fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. aestivum L., grown in large Þelds alternating yearly between crop and no-till fallow. The crop and fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. aestivum L., grown in large Þelds alternating yearly between crop and no-till fallow. The crop and fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. aestivum L., grown in large Þelds alternating yearly between crop and no-till fallow. The crop and fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. aestivum L., grown in large Þelds alternating yearly between crop and no-till fallow. The crop and fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale trap crop experiments for the wheat stem sawßy. fallow Þelds are adjacent. This cropping landscape creates pronounced edge effects of sawßy infestations and may be amenable to trap cropping using existing agricultural practices. The behavioral preference for two wheat varieties was assessed in the context of developing trap crops for this insect. In Þeld nurseries, stem lodging assessments indicated that the cultivar ÔConanÕ was infrequently damaged, whereas ÔReederÕ was often heavily damaged. In laboratory choice and no-choice tests, ÔReederÕ was signiÞcantly preferred by ovipositing wheat stem sawßy females. These two cultivars did not differ signiÞcantly in height or developmental stage, factors known to impact sawßy preference. Although Conan received fewer eggs than Reeder in no-choice tests, oviposition was further reduced in choice tests, indicating that females clearly preferred Reeder. In Þeld trials where the overall dimensions of the spatial structure in choice tests was varied, females always selected Reeder over Conan in alternating block, row, and interseeded planting scenarios. Reeder releases greater amounts of the attractive compound, (Z)-3-hexenyl acetate than Conan but is similar to Conan for three other known, behaviorally active volatile compounds. The results are discussed in terms of cultivar selection for large scale t