سال انتشار: ۱۳۹۰

محل انتشار: دومین همایش ملی مدیریت کنترل آفات

تعداد صفحات: ۱

نویسنده(ها):

P. Baradaran, – Department Agricultural Research Zoology, Iranian Plant Protection Research Institute
M. Arbabi – Department Agricultural Research Zoology, Iranian Plant Protection Research Institute
N. Nemati – Research Agricultural Center in Varamin

چکیده:

Population abundance of Phytoseius plumifer (C. & F.) an natural enemy of fig spider mite pest (Eotetanychushirsti) investigated on 11 commercial fig varieties (American, 1 , Zard Local ,American, 2 ,Zard local Saveh , SiahVaramin , Zard Onion ,Wild fig ,American, 3 , Siah local Saveh , Morabaii Garmsar and Zard Siljerd ) in two years(2000-2001) in Saveh region of Iran. Complete randomize block designed with four replications, each replicate consistedof a fig tree selected accordingly in the station of improving seedling Res. Inst. at Saveh region. Mite sampling onsetfrom late April until late of Oct at fortnight intervals. From each treatment 16 leaves collected randomly and active stagesof phytoseiid mite along with active and egg stages of E. hirsti abundance counted on 4 squares centimeters with the helpof a plastic hallow frame unit placed on bilateral midrib of under side of fig leaf and stereo microscope. Mean predatorymite statistically observed significant among fig varieties and Zard local Saveh with density of 1.83 and 2.85 mites in twoyears (2000-2001) along with Siah Varamin had higher predatory mite. Lack of predatory mite also recorded in MorabaiGarmsar and Wild fig varieties . Biological and continuation effects of predatory mite on spider mite pest recorded in forZard Local, Zard local Saveh , Siah Varamin varieties respectively and reverse condition for predatory activities observedin Zard Onion,Wild fig , American, 3 and Morabaii Garmsar. The most abundance of predatory mite recorded before andafter uptimum temperature which was suitable for spider mite increase and the highest predatory mite recorded withmean of 0.77 and 0.84 mite during Aug-Oct. Site of fertile female diapause of the predatory observed on leaves whichlater on reach to trunck of fig trees and this period extended from late autumn until middle of April. Statistical feedingfound significant on egg stage of mite pest while this phenomena was reverse for active mite pest.