نتایج جستجو برای: t brassicae
تعداد نتایج: 704350 فیلتر نتایج به سال:
یادگیری و دوام حافظة زنبورtrichogramma brassicae )hym.: trichogarmmatidae) آلوده به باکتری wolbachia
توانایی یادگیری و به خاطر سپردن نشانه های مرتبط با حضور شکار یا میزبان از عوامل مؤثر در افزایش کارایی و قدرت جست و جوگری دشمنان طبیعی همچون پارازیتوییدهای تخم از جمله زنبورهای trichogramma در طبیعت است. زنبور trichogramma brassicae در ایران گونة غالب در بین گونه های مختلف جنس trichogramma است و بیشترین گسترش را در مناطق مختلف ایران دارد. در حال حاضر، این گونه پرکاربردترین پارازیتویید تخم در برن...
یکی از عوامل مهم در ارزیابی کارایی دشمنان طبیعی، تعیین نرخ حمله آنها در تراکمهای مختلف میزبان و به عبارت دیگر واکنش تابعی است. در این پژوهش، واکنش تابعی وابسته به سن زنبور bezdenko trichogramma brassicae آلوده به ولباخیا در تراکمهای 5، 10، 20، 30، 40، 60 و 80 عدد از تخم بید آرد zeller ephestia kuehniella در شرایط دمایی 1±23 درجه سانتیگراد، رطوبت نسبی 5±60 درصد و نسبت روشنایی به تاریکی 8:1...
In this article, the biology and fertility life table parameters of the cabbage aphid, Brevicoryne brassicae (L.) (Hemiptera: Aphididae), were studied on cauliflower leaves, Brassica oleracea var. botrytis (Brassicales: Brassicaceae), of the cultivars Smilla, Snow mystique, White cloud, Buris, Galiblanka, Snow crown, SG, and Tokita. This study was conducted under controlled conditions: 25 ± 2°C...
Cabbage aphid, Brevicornye brassicae (Linnaeus) is one of the major insect pests cabbage. Chemical control mostly used to manage this pest. The present investigation was conducted evaluate an environmentally benign approach for pest management through different entomopathogenic mycoformulations against nymphs B. identify effective mycoformulation. effect supplemented with adjuvants Brassicae al...
introduction: parasitoid wasp, trichogramma brassicae (bezdenko) (hym.: trichogrammatidae) has excellent position in mass production technology, scope of application, wide geographical distribution and unmatched talent to adapt to different climatic conditions that can be easily reared on mediterranean flour moth (mfm), ephestia kuehniella zeller (lep.: pyralidae). the parasitoid use is in orde...
Trichogramma brassicae (Bezdenko) is the most important species of Trichogramma parasitoids in Iran. The cotton bollworm, Helicoverpa armigera (Hubner) is a polyphagous insect pest that attacks many crops including cotton, maize, soybean, tomato, etc. The bollworm egg is a suitable target for many Trichogramma species. Factitious hosts such as eggs of the flour moth, Anagasta kuehniella (Zeller...
To enhance biological control of insect pests in greenhouses, facilities and procedures for mass production of the parasitoids, Eretmocerus sp., Encarsia formosa, and Trichogramma brassicae, and the predator, Aphidoletes aphidimyza were successfully developed in Hengshui, Hebei province, China. Mass production of the aphelinid wasps was achieved by using different plant varieties and host insec...
Alternaria brassicae is a necrotrophic fungus causes blight disease in oilseed mustard crop. There 47% loss of the crop due to disease. To control this disease, various chemical fungicides have been used till date which are harmful our environment. Zinc oxide (ZnO) nanoparticles synthesized from Terminalia bellerica reported significant antifungal potential against A. at 200 ppm concentration. ...
The development of indigenously isolated entomopathogenic nematodes as biological control agents was investigated. The study involved three nematode species (Heterorhabditis indica, Steinernema thermophilum and S. glaseri) and their pathogenicity against larvae of cabbage butterfly, Pieris brassicae, under laboratory conditions. Nematodes of different concentrations (0, 10, 25, 50, 75, and 100 ...
Several 2,6-bis-(un)substituted phenoxymethylpyridines were synthesized and evaluated in vitro against Fusarium graminearum, Helminthosporium sorokinianum, Alternaria brassicae, Alternaria alternata, and Fusarium oxysporum f. sp. vasinfectum. Among all derivatives, compound 3a exhibited a broad-spectrum antifungal activity against the five phytopathogenic fungi.
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