Effects of temperature, relative humidity and host on the biology of anisopteromalus calandrae (Hymenoptera: pteromalidae)
نویسندگان
چکیده
منابع مشابه
Influence of temperature on the functional response of Anisopteromalus calandrae (Hymenoptera: Pteromalidae), a parasitoid of Rhyzopertha dominica (Coleoptera: Bostrichidae)
The functional response of Anisopteromalus calandrae (Howard) parasitizing 4th-instar Rhyzopertha dominica (F.) on wheat was estimated over a range of temperatures and host densities. A functional response equation was used in which a quadratic component that included temperature was substituted for handling time. The instantaneous search rate increased with increasing temperatures. The maximum...
متن کاملFitness of a Malathion-Resistant Strain of the Parasitoid Anisopteromalus calandrae (Hymenoptera: Pteromalidae)
Biological Þtness of a malathion-resistant (R) and a malathion-susceptible (S) strain of the solitary parasitoid Anisopteromalus calandrae (Howard) was compared when the wasps were parasitizing immature rice weevils, Sitophilus oryzae (L.), in stored wheat. Despite having a .2,500-fold naturally occurring resistance, in the absence of insecticide the R strain was equal to the S strain in abilit...
متن کاملBIOLOGICAL CONTROL Effects of Protect-It on Efficacy of Anisopteromalus calandrae (Hymenoptera: Pteromalidae) Parasitizing Rice Weevils (Coleoptera: Curculionidae) in Wheat
The parasitoid Anisopteromalus calandrae (Howard) was very sensitive to direct contact with Protect-It, an inert dust formulation containing 90% diatomaceous earth and 10% silica aerogel. LT50s at room temperature and humidity were 49 min (95% CL 5 48Ð51) and 72 min (95% CL 5 69Ð74) for males and females, respectively, in petri dishes containing 2.5 mg dust per square centimeter. Under the same...
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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...
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ژورنال
عنوان ژورنال: Bangladesh Journal of Zoology
سال: 2015
ISSN: 2408-8455,0304-9027
DOI: 10.3329/bjz.v41i1.23302