Seasonal fluctuation in density of pest insects on bedding plants.
نویسندگان
چکیده
منابع مشابه
Detoxifying symbionts in agriculturally important pest insects
Pest insects lead to excessive agricultural and therefore economical losses on crops worldwide. These insects have to withstand toxic molecules that are inherent to plant defences, as well as those that are produced and introduced by humans in the form of insecticides. In recent years, research on insect-microbe symbioses has recognized that microbial symbionts may play a role protecting agains...
متن کاملPEST MANAGEMENT: INSECTS Volatiles Induction in Rice Stink Bug Host Grasses and Rice Plants
Rice stink bug (RSB), Oebalus pugnax F., is an important pest of heading rice in the United States. Little is known about plant volatiles production following herbivory by rice stink bug. RSB feeding induced volatiles production in different RSB host grasses and rice varieties, and may help explain RSB movement to heading rice. Limonene and methyl salicylate (MeSA) were found in varying amounts...
متن کاملthe effect of creative writing instruction on lexical density of advanced efl learners writing
چکیده ندارد.
15 صفحه اولMermithid parasites of agricultural pest insects.
T h i s pape r assesses ou r state of knowledge of physiological processes involved in the re la t ionships between insects and the i r m e r m i t h i d ne m a tode parasi tes. T h r e e ma jo r componen t s of the host -paras i te relat ionship(s) are reviewed: effects of m e r m i t h i d s on hos t physiology, effects of hos t physiology on mermi th id s , and the physiology of the nema tod...
متن کاملthe effect of traffic density on the accident externality from driving the case study of tehran
در این پژوهش به بررسی اثر افزایش ترافیک بر روی تعداد تصادفات پرداخته شده است. به این منظور 30 تقاطع در شهر تهران بطور تصادفی انتخاب گردید و تعداد تصادفات ماهیانه در این تقاطعات در طول سالهای 89-90 از سازمان کنترل ترافیک شهر تهران استخراج گردید و با استفاده از مدل داده های تابلویی و نرم افزار eviews مدل خطی و درجه دوم تخمین زده شد و در نهایت این نتیجه حاصل شد که تقاطعات پر ترافیک تر تعداد تصادفا...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Annual Report of The Kansai Plant Protection Society
سال: 2001
ISSN: 0387-1002
DOI: 10.4165/kapps1958.43.0_33