نتایج جستجو برای: bioinsecticide production
تعداد نتایج: 603961 فیلتر نتایج به سال:
Abstract Spodoptera exigua is a cosmopolitan and polyphagous pest. Botanical pesticides are an alternative technique to control S. . This study aimed evaluate the effect of ethyl acetate extract Nothaphoebe coriacea Kosterm bark (EEN) on biological activity larvae determine most effective concentration manage experiment was arranged single factor completely randomized design with level as facto...
Synthetic pesticide use has been the dominant form of pest control since the 1940s. However, biopesticides are emerging as sustainable pest control alternatives, with prevailing use in organic agricultural production systems. Foremost among botanical biopesticides is the limonoid azadirachtin, whose perceived environmental safety has come under debate and scrutiny in recent years. Coconut produ...
The demand for soybean has been steadily increasing year after year. Pests are one of the most significant barriers to production. goal this study was determine what concentration soapberry fruit extract use as an adjunctive ingredient in cashew nut shell liquid (CNSL) formulations obtain best pest control effect and growth yield. This used a randomized complete block design with single factor:...
the present study was conducted to investigate the effect of implicit focus on form through input flooding and the effect of noticing, explicit focus on form on linguistic accuracy. to fulfill the purpose of the study, 86 iranian pre-intermediate efl learners of one of the language institutes were chosen by means of administering ket as the homogeneity test. these learners were pretested throug...
the purpose of this study was to investigate the effect of task repetition on accuracy of iranian efl learners ’speaking ability. in order to achieve this purpose, a null hypothesis was developed: there is no statistically significant difference between accuracy speaking ability in iranian efl learners by use of task repetition. ; of course i should mention that, beside this null hypothesis, an...
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...
Crocidolomia pavonana is an important pest of broccoli plants. Pest control currently still using chemical pesticides that negatively impact the environment. It hoped Beauveria bassiana will become one environmentally friendly bioinsecticides. The research aimed to study virulence level conidia density B. as a bioinsecticide against C. pests on This experiment used completely randomized design ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید