ECOLOGICAL AND BIOLOGICAL STUDIES ON MITES OC-CURRING ON FIG TREES AT BARRAGE DISTRICT (QALYOBIA GOVERNORATE)

Document Type : Original Article

Authors

Plant Protection Research institute, Agricultural Research Centre, Dokki, Giza, Egypt

Abstract

Ecological and biological studies were conducted on mites inha­biting fig trees at Barrage district (Qalyobia Governorate)throughout the year 1995. Twelve mite species belonging to ten families were recorded. The two-spotted spider mite, Tetrancychus arabicus Attiah was the most prevalent phytophagous mite species, while Amblyseius swirskii Athias­Henriot seemed to be the common acarine predator. Black Michen varie­ty harboured the greatest T.arabicus density followed by Konadria varie­ty, while Doritto was the least sensitive variety. Black Michen varietty accelerated T.arabicus development and highly favoured the mite ovipo­sition and fecundity than did Doritto variety.