Performance of Cypermethrin, Deltamethrin and Nimbicidine on Larval Development of <i>Tribolium castaneum</i> (Herbst)
نویسندگان
چکیده
منابع مشابه
Performance of Cypermethrin, Deltamethrin and Nimbicidine on Larval Development of Tribolium Castaneum (herbst)
Context: Pyrethroid insecticides and natural products individually or in mixture can protect stored products by retarded growth and delayed larval period. Objectives: To investigate the effects of cypermethrin, deltamethrin and azadirachtin either alone or in combinations on the larval development of Tribolium castaneum (Herbst). Materials and Methods: T. castaneum larvae were reared in flour m...
متن کاملEfficacy of cypermethrin, deltamethrin and nimbicidine on fecundity and egg viability of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)
Fecundity and egg viability of Tribolium castaneum (Herbst) females were significantly (P<0.01) reduced by synthetic pyrethroids and an alkaloid containing insecticide nimbicidine. In control, the average number of eggs laid by each female/day was 12.18. The lowest number of eggs laid by each female/day was noted as 4.38 when combining nimbicidine with two pyrethroids i.e., cypermethrin and del...
متن کاملthe effects of planning on accuracy and complexity of iranian efl students’ written narrative task performance
this study compared the different effects of form-focused guided planning vs. meaning-focused guided planning on iranian pre-intermediate students’ task performance. the study lasted for three weeks and concentrated on eight english structures. forty five pre-intermediate iranian students were randomly assigned to three groups of guided planning focus-on-form group (gpfg), guided planning focus...
15 صفحه اولthe effects of time planning and task complexity on accuracy of narrative task performance
هدف اصلی این تحقیق بررسی تاثیر برنامه ریزی زمانی، هم چنین افزایش میزان پیچیدگی تکالیف در نظر گرفته شده بصورت همزمان، بر دقت و صحت و پیچیدگی عملکرد نوشتاری زبان آموزان می باشد. بدین منظور، 50 نفر از دانش آموزان دختر در رده ی سنی 16 الی 18 سال به عنوان شرکت کنندگان در این زمینه ی تحقیق در نظر گرفته شدند و به دو گروه آزمایشی و کنترل بصورت اتفاقی تقسیم شدند. اعضای گروه آزمایشی هر دو تکلیف ساده و پی...
effect of oral presentation on development of l2 learners grammar
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
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: Journal of Bio-Science
سال: 1970
ISSN: 2408-8595,1023-8654
DOI: 10.3329/jbs.v17i0.7100