AN EXTENSIVE SURVEY OF BEMISIA TABACI (HOMOPTERA: ALEYRODIDAE) IN AGRICULTURAL ECOSYSTEMS IN FLORIDA

Location of Geminiviruses in the Whitefly Bemisia tabaci (Homoptera: Aleyrodidae)

W. B. Hunter, University of Florida, Gulf Coast Research and Education Center, 5007 60 St. E., Bradenton 342039324; E. Hiebert, University of Florida, Plant Pathology Department, 1453 Fifield Hall, Gainesville 32611-0680; S. E. Webb, University of Florida, Central Florida-REC, 5336 University Ave., Leesburg 34748-8232; J. H. Tsai, University of Florida, Ft. Lauderdale-REC, 3205 S.W. College Ave...

ECOLOGY AND BEHAVIOUR Bemisia tabaci (Homoptera: Aleyrodidae) Biotypes in India

Host plant performance, esterase, and virus transmission tests revealed cassava-strain and sweetpotato-strain populations of whiteßy Bemisia tabaci (Gennadius) biotypes in India. Individuals from the sweetpotato-reared population did not breed on cassava, Manihot esculenta Crantz, and the cassava-strain-reared individuals failed to develop on sweetpotato, Ipomoea batatus (L.) Lam. Eggplant, Sol...

Insecticide resistance in Bemisia tabaci (Homoptera: Aleyrodidae) populations from Crete.

The resistance levels to alpha-cypermethrin, bifenthrin, pirimiphos-methyl, endosulfan and imidacloprid were determined in Bemisia tabaci (Gennadius) from Crete. Five B tabaci populations collected from greenhouse and outdoor crops were bioassayed and compared with a reference susceptible strain. Bemisia tabaci collected in a floriculture greenhouse exhibited the highest resistance against all ...

Discovering new insect viruses: whitefly iridovirus (Homoptera: Aleyrodidae: Bemisia tabaci).

Adult whiteflies, Bemisia tabaci (Gennadius), collected from the field were screened for viral pathogens using a cell line from the silverleaf whitefly, B. tabaci, B biotype (syn. B. argentifolii). Homogenates from the field-collected whiteflies were applied to cell cultures and checked for cytopathic effects (CPE). Cells were observed to develop cytoplasmic inclusions and to have a change in m...

Population Ecology of Whitefly, Bemisia tabaci, (Homoptera: Aleyrodidae) on Brinjal