Staff Members - Benha University
Comparative Study on the Effectiveness of Chemical Versus Biological Control Against Liriomyza trifolii (Diptera: Agromyzidae) under Field and Greenhouse Conditions
• 2019
Publication Information
Authors
Amany R. Morsy, A.M. El-Shewy and K.K.H. Elgizawy
Keywords
Abammectin Primiphos methyl IGR Liriomyza trifolii Phaseolus vulgaris Diglyphus
isaea
Journal
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publication.type
Local
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Abstract
Influences of certain insecticides, i.e. abamectin, Primiphos methyl Bemistop, Trigard and
pyriproxyfen versus releasing the ectoparasitoid, Diglyphus isaea were evaluated to estimate their effectiveness
for controlling the leaf miner liriomyza trifolii (Burgess) infesting Phaseolus vulgaris grown under field and
glass house conditions. Results indicated that all treatments caused increased in the tested pest's and
Diglyphus isaea populations in both applications. Highest reduction values in L. trifolii population occurred
after 1 and 2 applications of Trigard (87.2 & 81.0%) followed by Actellic (68.6 &75.8%), V st nd ertimec (67.5 &75.3
%) and Admiral (60.5 & 66.2 %). While the low effect was shown after treatment by Bemistop (54.9 &57.1 %).
In case of releasing Diglyphus isaea in the green house, data showed that in order to obtain satisfactory
control of Phaseolus vulgaris, weekly releases of the parasitoid are needed and that the rates of 4/30 and 2/30
(parasite / larvae) proved as best rates for release. Therefore, D. isaea can be considered a good promised
control element especially in successful release of some IPM programs of Phaseolus vulgaris grown under glass
house conditions.
pyriproxyfen versus releasing the ectoparasitoid, Diglyphus isaea were evaluated to estimate their effectiveness
for controlling the leaf miner liriomyza trifolii (Burgess) infesting Phaseolus vulgaris grown under field and
glass house conditions. Results indicated that all treatments caused increased in the tested pest's and
Diglyphus isaea populations in both applications. Highest reduction values in L. trifolii population occurred
after 1 and 2 applications of Trigard (87.2 & 81.0%) followed by Actellic (68.6 &75.8%), V st nd ertimec (67.5 &75.3
%) and Admiral (60.5 & 66.2 %). While the low effect was shown after treatment by Bemistop (54.9 &57.1 %).
In case of releasing Diglyphus isaea in the green house, data showed that in order to obtain satisfactory
control of Phaseolus vulgaris, weekly releases of the parasitoid are needed and that the rates of 4/30 and 2/30
(parasite / larvae) proved as best rates for release. Therefore, D. isaea can be considered a good promised
control element especially in successful release of some IPM programs of Phaseolus vulgaris grown under glass
house conditions.