Parasitoid Wasps Attacking the American Serpentine Leafminer Liriomyza trifolii in Kafr EL-Shiekh, Egypt
Journal Title: International Journal of Zoological Investigations - Year 2017, Vol 3, Issue 1
Abstract
Dipteran leafminers of the genus Liriomyza are important pests of many vegetable crops worldwide. In Egypt, broad bean yield had been severely harmed in recent years due to dipteran leafminer infestations. Biological control with parasitoids is known as an effective measure to reduce leafminer damage. In the present study, we first examined the composition of parasitoid species and parasitism rates of parasitoid wasps attacking L. trifolii to highlight the importance of parasitoids in regulating leafminer populations on bean fields in Kafr EL-Shiekh, Egypt. Then, the effects of plant species, weather factors and planting dates on the parasitism rate of parasitoid wasps were investigated, in order to examine how the above -mentioned factors influence the impact of the parasitoids on leafminer populations. Two parasitoid wasps Opius dissitus and Diglyphus isaea were commonly found on broad bean (faba bean) and French bean fields. These parasitoids were detected throughout the growing season of bean plants, though the parasitism rates were relatively low. Parasitism rates were significantly higher in French bean than in broad bean, suggesting host plant preference in the parasitoid species. Temperature and precipitation appeared not to affect the parasitism rates.
Authors and Affiliations
Rowfida A. Bassiony
Keywords
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Parasitoid Wasps Attacking the American Serpentine Leafminer Liriomyza trifolii in Kafr EL-Shiekh, Egypt
Dipteran leafminers of the genus Liriomyza are important pests of many vegetable crops worldwide. In Egypt, broad bean yield had been severely harmed in recent years due to dipteran leafminer infestations. Biological con...
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