Survey of pests and their associated natural enemies occurred on cucumber plants (Cucumis sativus)‎

الملخص EN

A survey was carried out to investigate different types of insects, mites and associated natural enemies found on three hybrids of cucumber (Hayal, ashrak, and bahi) at Qaha area, Qalubiya Governorate, during two successive seasons, 2015 and 2016.

The results revealed 28 insect and mite species belonging to 25 families within 9 orders.

Among the recorded pest species, six species namely, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), Aphis gossypii Glover (Hemiptera: Aphididae), Thrips tabaci Lindeman (Thysanoptera: Thripidae), Liriomyza bryoniae (Kaitenbach) (Diptera: Agromyzidae), Dacus ciliatus (Loew) (Diptera: Tephritidae) and Tetranychus urticae Koch (Acari: Tetranychidae) are of highly economic importance.

While the rest were of no economic importance based on population.

It was found also that, cucumber plants in the surveyed area were inhabited with five natural enemies, that were: Hippodamia (Adonia) variegata (Goeze) (Coleoptera: Coccinellidae), Polistes gallica L., Vespa orientalis (L.) (Hymenoptera: Vespidae), Brachymeria aegyptiaca Masi (Hymenoptera: Chalcididae) and Euseius scutalis (Athias-Henriot) (Acari: Phytoseiidae).