نتایج جستجو برای: microbial insecticides
تعداد نتایج: 126036 فیلتر نتایج به سال:
چکیده ندارد.
BACKGROUND Botanical and microbial insecticides have been increasingly used for the control of mosquito given their efficacy and documented nontoxic effects on non-target organisms. The discovery of new insecticides is imperative because of the development of resistance by the mosquitoes to the readily available insecticides. The aim of this study was therefore to isolate and characterize compo...
Seed dressing, i.e., the treatment of crop seeds with insecticides and/or fungicides, aiming to protect seeds from pests and diseases, is widely used in conventional agriculture. During the growing season, those crop fields often receive additional broadband herbicide applications. However, despite this broad utilization, very little is known on potential side effects or interactions between th...
Detritus particles derived from the decomposition of vascular plants appear to have a high sorptive capability for a wide range of pollutants. Evidence is presented and reviewed which shows detrital concentration of heavy metals, radionuclides, and organochlorine insecticides. A study of a roadside marsh indicates that lead originating from automobile exhausts may reach concentrations as high a...
Soil microorganisms have a primary catabolic role in the environment through degradation of plant and animal residues. The activities of microorganisms in soil are thus, essential to the global cycling of nutrients. As these pesticides are designed to be biologically active, their continuous use might affect soil microflora either by changing their properties or their numbers, which may lead to...
Phenolic compounds are widely distributed in the plant kingdom. Plant tissues may contain up to several grams per kilogram. External stimuli such as microbial infections, ultraviolet radiation, and chemical stressors induce their synthesis. The phenolic compounds resveratrol, flavonoids, and furanocoumarins have many ecologic functions and affect human health. Ecologic functions include defense...
Microbes are ubiquitous, survive in all sorts of environments and have a profound influence on the earth. In the present day plant protection scenario, development of resistance to chemical pesticides is the major hurdle in insect pest management. In recent years, several microbes with potential insecticidal properties have come to light. Viruses, bacteria, fungi and protozoa that are known to ...
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