نتایج جستجو برای: cacopsylla nigrita
تعداد نتایج: 176 فیلتر نتایج به سال:
Anthocoris nemoralis (F.) (Hemiptera: Anthocoridae) is one of the most prominent predators of the pear psylla, Cacopsylla pyricola (Forster) (Hemiptera: Psyllidae) and is considered as a biological control agent against this pest. In order to investigate the effects of plant varieties on predation of C. pyricola by A. nemoralis, the functional response of both the sexes of A. nemoralis to pear ...
پسیل گلابی Cacopsylla pyricola (Foerster) (Hemiptera: psyllidae)یکی از مهم‌ترین آفت‌های درختان گلابی در ایران و جهان بوده و کنترل شیمیایی متداول‌ترین روش کنترل آن است. امروزه روش تزریق سموم یکی از روش‌های فنی و مؤثر در کنترل آفات مکنده به شمار می‌رود. هدف این تحقیق ارزیابی تأثیر کود کامل و مخلوط آن با آزادیراکتین به روش تزریق روی پسیل گلابی است. این آزمایش در قالب طرح بلوک‌های کامل تصادفی با چ...
Biological efficacy of rapeseed spray oil against twospotted spider mite (Tetranychus urticae Koch) on cucumber, against European red mite [Panonychus ulmi (Koch)] on apple, green peach aphid (Myzus persicae Sulzer) on pepper and pear psylla [Cacopsylla pyri (L.)] was evaluated in seven field and three greenhouse trials at eight localities in Serbia during 2005-2008. The efficacy of rapeseed sp...
Potato psyllid (Bactericera cockerelli) is an important pest of potato, tomato and pepper. Not only could a toxin secreted by nymphs results in serious phytotoxemia in some host plants, but also over the past few years B. cockerelli was shown to transmit "Candidatus Liberibacter solanacearum", the putative bacterial pathogen of potato zebra chip (ZC) disease, to potato and tomato. ZC has caused...
Reinforcement contact zones, which are secondary contact zones where species are diverging in reproductive behaviors due to selection against hybridization, represent natural laboratories for studying speciation-in-action. Here, we examined replicate localities across the entire reinforcement contact zone between North American chorus frogs Pseudacris feriarum and P. nigrita to investigate geog...
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