Chemical control of Thrips palmi on beans in Venezuela
Thrips palmi (EPPO A1 quarantine pest) has been found for the first time in Venezuela on beans (Phaseolus vulgaris), potato (Solanum tuberosum), aubergine (S. melongena) and melon (Cucumis melo) during 1990-1991 (EPPO RS 95/117). Other affected crops include cucumber (Cucumis sativus), pepper (Capsicum annuum), sesame (Sesamum indicum), sunflower (Helianthus annuus), soybean (Glycine max), cowpea (Vigna sinensis), tobacco (Nicotiana tabacum) and squash (Cucurbita pepo). Preliminary trials with 11 insecticides have been carried out in 1991 on P. vulgaris. Flufenoxuron (1 l/ha), imidacloprid (1 l/ha) and chlorfluazuron (1.5 l/ha) were the most effective insecticides, when applied at 5-day interval. However, no insecticide was more than 81.5 % effective.
Cermeli, M.; Montagne, A.; Godoy, F. (1993) [Preliminary results on the chemical control of Thrips palmi Karny (Thysanoptera: Thripidae) on beans (Phaseolus vulgaris L.)].
Boletín de Entomología Venezolana, 8(1), 63-73.