Effect of some biocides on leafminer Liriomyza spp. (Diptera: Agromyzidae) and whitefly Bemisia tabaci (Homoptera: Aleyrodidae).

Document Type : Original Article

Authors

Plant Protection Research Institute, Sabahia, Alexandria.

10.21608/jpces.2002.459581

Abstract

Evaluation of biocidal effect of spinosad (bacteria), pyriproxyfen (IGR) and mineral oil (CAPL2) and their binary mixtures on leafminer, Liriomyza trifolii and immature stages of whitefly, Bemisia tabaci on tomato plant was carried out under field conditions. The results indicated that the combination of spinosad and the oil showed the highest efficacy against L, trifolii where the mean number of larvae reached zero at the 15th day after treatment, followed by the treatment of spinosad alone. Pyriproxyfen showed the highest efficacy against immature stages of whitefly where the population reduced to 94.2% followed by pyriproxyfen plus the oil (91.4%), the oil alone (88.62%) and spinosad plus the oil (88.46%) while spinosad alone gave the lowest percentage of reduction (66.51 From this study it could be concluded that the mixture of spinosad plus the oil was highly effective in controlling L.trifolli larvae while pyriproxyfen was effective against B. tabaci.
Journal of Pest Control and Environmental Sciences
Volume 10, Issue 1
2002
Pages 111-126

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