Variación espacio-temporal de los diferentes estados de desarrollo de mosquitas blancas Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) en cultivos de soja

CAVALLO MARÍA JOSE; MARINA BRUNO; MARIANO GRILLI

agriscientia

Facultad de Ciencias Agronómicas (UNC)

Lugar: Córdoba; Año: 2013 vol. 30 p. 87 - 95

1668-298x

Soybean is now-a-days the most important crop in Argentina. Among all insect pests affecting this crop the sweetpotato whitefly, Bemisia tabaci, is becoming a new and increasingly important pest. In this paper we propose as objectives: a) to establish the spatial distribution of the different stages of B. tabaci in soybean plots in the central area of Cordoba province (Argentina) and b) to determine the spatio-temporal variation of the abundance of these stages in the same places. We worked with samples collected in to localities of Colon Department; Colonia Tirolesa and Colonia Caroya. The comparisons between localities showed a high variability between them but only the differences between adults were statistically significative. When we compared the variation of the abundance between sampling dates only the increase of nymphs and pupae were significative during the second sampling date in Colonia Tirolesa. When comparing the differences between soybean plots differences between plots in both localities and in all B. tabaci stages were observed. These results are an important input to be use in decision making for the management of this pest in the area.