نتایج جستجو برای: botanical pesticide
تعداد نتایج: 21732 فیلتر نتایج به سال:
To evaluate quantitative and qualitative traits as well as thrips resistance of onion genotypes, an experiment was conducted at Behbahan Agricultural Research Station, Behbahan, Khuzestan, Iran from 2013 to 2015. The experiment was a split plot based on a randomized complete block design with three replications. Pesticide-treated and pesticide-free plots were considered as sub plots and ten oni...
Ratcheting surfaces are a common motif in nature and appear in plant awns and grasses. They are known to proffer selective advantages for seed dispersion and burial. In two simple model experiments, we show that these anisotropically toothed surfaces naturally serve as motion rectifiers and generically move in a unidirectional manner, when subjected to temporally and spatially symmetric excitat...
Abstract Maize plays a strategic role in the national food map as well mainstay commodity accelerating realization of self-sufficiency. It is because maize has wide adaptability and relatively easy to cultivate. However, attack weevil obstructs increase productivity. This pest most destructive reduces productivity source carbohydrates. The global policy limiting use synthetic pesticides control...
Spodoptera litura Fabricius pest control using botanical pesticide from papaya leaves extract (PLE) is an alternative to substitute chemical pesticides. The study aimed determine the levels of PLE's activity and evaluate effectiveness PLE different altitudes (low middle lands) cultivars (Thailand Indonesian) against attack S. larvae. An experimental with a randomized block design ( n=5 ) was co...
OBJECTIVE Despite the rapid industrialisation and urbanisation over the past 30 years, agriculture is one of the largest economic sectors in China and the unregulated use of pesticides result in extensive pesticide poisoning. The objective of this study was to analyse pesticide poisoning cases registration received by Zhejiang Provincial Center for Disease Control and Prevention, China. DESIG...
Correspondence to Dr Guangdi Chen; [email protected] and Dr Hua Zou; [email protected] ABSTRACT Objective: Despite the rapid industrialisation and urbanisation over the past 30 years, agriculture is one of the largest economic sectors in China and the unregulated use of pesticides result in extensive pesticide poisoning. The objective of this study was to analyse pesticide poisoning cases regi...
background: we aimed to evaluate effect of euphorbia royleana exposure on histocytology of corpuscles of stannius in fish, heteropneustes fossilis. methods: fish were subjected to 2.47 mg/l and 0.618 mg/l of e. royleana for short-term and long-term exposure, respectively. blood samples were collected on 24, 48, 72 and 96 h in short-term and after 7, 14, 21, and 28 d in long-term experiment and ...
CONTEXT Pesticides continue to be used on school property, and some schools are at risk of pesticide drift exposure from neighboring farms, which leads to pesticide exposure among students and school employees. However, information on the magnitude of illnesses and risk factors associated with these pesticide exposures is not available. OBJECTIVE To estimate the magnitude of and associated ri...
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