The Impact of Biological and Chemical Control on Certain Piercing Sucking Pests Infesting Cucumber Plants in Qalyiobia Governorate

S., Wahba B.; Ghallab, Mona M. A.

doi:10.21608/eajbsa.2015.12869

The Impact of Biological and Chemical Control on Certain Piercing Sucking Pests Infesting Cucumber Plants in Qalyiobia Governorate

Document Type : Original Article

Authors

plant protection research institute, A.R.C., Dokki, Giza, Egypt

10.21608/eajbsa.2015.12869

Abstract

Field studies were carried out to evaluate the efficacy of two predacious mites, released, Phytoseiulus persimilis (Athias–Henriot)andEsieus scutalis (A.- H.). Also, different four acaricides, ortus, arrow, killmite and vertimec were evaluated against phytophagous mites, Tetranychus urticae Koch, and T. cucurbitacearum (Sayed)and insect pest Thrips tabaci (lindquist) which attack zena hybrid, variety of cucumber plants in plant protection research institute station, Quaha, Qalyiobia Governorate throughout summer season 2014. The predators were released by bean leaflet harboured the predator individuals. Phytoseiid mite, P. Persimilis had a higher influence than Esieus scutalis (A.- H.)on the previous mentioned pests. It is revealed reduction percent with mean 90.75 and 73.76% to Tetranychus urticae, eggs and mobile stages resp. and 66.62 and 94.76% reduction to T. cucurbitacearum at the same stages resp. this is reversed on the yield by occurrence cucumber fruit yields higher for P. persimilis treatment than the other treatment,E. scutalis which recorded significantly fruit yields with mean count 238.20 kg/fad. The release of predacious mites, Phytoseiulus persimilis andEsieus scutalis revealed better influence than check to phytophagous mites, Tetranychus urticae, and T. cucurbitacearum and insect pest Thrips tabaci. The application of the different four acaricides revealed similar effectiveness and high influence on two spider mites, Tetranychus urticae and T. cucurbitacearum, eggs and mobiles, while these compounds were less effect on the insect pest, Thrips tabaci. Treatment, arrow revealed the best for having the highest cucumber fruit yields compared with others which recorded mean counts 353.69 kg/fad. The application of the different four acaricides, ortus, arrow, killmite and vertimec were better than check to control the three mentioned previous pests.

Keywords