نتایج جستجو برای: spodoptera litura
تعداد نتایج: 3798 فیلتر نتایج به سال:
BACKGROUND Spodoptera litura is a noctuid moth that is considered an agricultural pest. The larvae feed on a wide range of plants and have been recorded on plants from 40 plant families (mostly dicotyledons). It is a major pest of many crops. To better understand Spodoptera litura granulovirus (SpliGV), the nucleotide sequence of the SpliGV DNA genome was determined and analyzed. METHODOLOGY/...
Castor, (Ricinus communis L.) is one of the most important commercial, non-edible oilseed crop. Tobacco caterpillar, Spodoptera litura (Noctuidae: Lepidoptera), a major defoliator castor. The biophysical factors in castor play role conferring resistance against S.litura. present study was conducted with an objective, to basis S. litura. Feeding preference larvae leaves IVHT-39 followed by Salem...
Spodoptera litura dapat menyebabkan kehilangan hasil hingga 80% bahkan gagal panen. Nuclear Polyhedrosis Virus merupakan agensi hayati dari kelompok patogen serangga famili Baculoviridae yang banyak digunakan sebagai agens dan (SlNPV) salah satu pemanfaatan NPV efektif dalam mengendalikan litura. Kendala penggunaan SlNPV yaitu tidak tahan terhadap sinar matahari sehingga perlu bahan pelindung a...
spodoptera exigua، s. littoralis و s. litura با دامنه میزبانی وسیع از جمله مهمترین آفات چغندرقند می باشند. گونه s. exigua دارای انتشار جهانی بوده در حالی که دو گونه s. littoralis و s. litura از انتشار محدودتری برخوردار هستند. در این تحقیق نوسان فصلی جمعیت گونه های s. exigua، s. littoralis و s. litura در طول فصل کاشت چغندرقند به وسیله تله های قیفی سبز رنگ طعمه گذاری شده با فرومون جنسی آن...
The effects of extracts of sesame, Sesamum indicum L. (Liamiales: Pedaliaceae), and whole leaves of some selected cultivars of sesame were tested using a natural host Spodoptera litura (F.) (Lepidoptera: Noctuidae). Indices taken using the immature stages include; diet utilization, growth and development and induction of detoxification enzymes. The results indicate that S. litura generally sele...
*Correspondence: Ahmed M. Saveer, Department of Plant Protection Biology, Box 102, SE-230 53 Alnarp, Sweden e-mail: [email protected] Mate recognition is crucial for reproductive isolation and for maintaining species integrity. Chemosensory-mediated sexual communication with pheromones is an essential component of mate recognition in moths. Confronted with sex pheromone stimuli released fr...
Effects of four host plants, tobacco, Chinese cabbage, cowpea and sweet potato, on larval and pupal development and survival, and longevity and fecundity of adults of Spodoptera litura (F) (Lepidoptera: Noctuidae), were studied under laboratory conditions (26 degrees C, 60-80% RH), as was the utilization of the four host plants and adaptation on tobacco. All of the biological parameters include...
در این تحقیق قدرت بیمارگری سه ویروس Spodoptera littoralis NPV، Helicoverpa armigera NPV و Spodoptera litura NPV در سه غلظت مختلف 10۲×6، 104×6 و ۱۰۶×۶ OB در میلیلیتر روی لاروهای ۵ روزه کرم برگخوار مصری پنبه (Spodoptera littoralis) در دمای ۲5 درجه سلسیوس روی غذای مصنوعی بررسی شد. بیشترین طول دوره لاروی با 19.7 روز مربوط به ویروس H. armigera در غلظت ۱۰۴×6 OB در میلیلیتر بود که با بقیه تیمارها اخ...
Since the first fatty acid amino acid conjugate (FAC) was isolated from regurgitant of Spodoptera exigua larvae in 1997 [volicitin: N-(17-hydroxylinolenoyl)-L-glutamine], their role as elicitors of induced responses in plants has been well documented. However, studies of the biosyntheses and the physiological role of FACs in the insect have been minimal. By using (14)C-labeled glutamine, glutam...
Biological control agents are a promising substitute for chemical pesticides in agricultural pest management. In this study, Penicillium sp. with high pathogenicity to the pests oriental leafworm moth (Spodoptera litura) and diamondback (Plutella xylostella) were isolated from naturally infected insects grown on different residues as an inexpensive substrate their sporulation. Ten strains of (P...
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