نتایج جستجو برای: fungicides
تعداد نتایج: 4132 فیلتر نتایج به سال:
Cypress canker caused by Seiridium cardinale was controlled by benomyl and chlorothalonil but not by tribasic copper sulfate. Cypress canker has been present in California since 1927 where it has caused considerable damage to planted Monterey cypress, Cupressus macrocarpa (6). The popularity of this California native range and usually canker disease appears, but some uninformed people still pla...
the effect of fungicides on silkworm larvae was analyzed with regard to the fact that these beneficial insects are usually affected by fungicides, daily feeding on 1 and 2g/liter of carbendazim, a systemic fungicide, did not have significant effects on larval and pupal mortality. however the weight of the treated larvae showed considerable weight decrease up to 37% weight.. all the economic tra...
The use of a microorganism, or its secretions, to prevent plant disease offers an attractive alternative or supplement to synthetic fungicides for the management of plant disease without the negative effects of chemical control mechanisms. During a screening for microorganisms with the potential to be used as microbial fungicides, Bacillus sp. BS061 was isolated from a plant leaf. The strain BS...
Search for naturally occurring compounds with antifungal activity has become quite intense due to the side effects of synthetic fungicides and the development of pathogens against such fungicides. Hence screening of various Siddha drugs for their antifungal activity against various strains of Candida albicans was considered worthwhile. Seven such Siddha drugs were screened for their antifungal ...
entomopathogenic fungi may be affected by pesticides used to protect crop plants. the in vitro compatibility of beauveria bassiana and metarhizium anisopliae with three fungicides and 16 insecticides was evaluated. the formulations of pesticides were tested in three concentrations (mean concentration (mc), half mc and twice the mc). all tested fungicides, at three concentrations, were incompati...
High temperature liquid chromatography using water-rich and superheated water eluent is evaluated as a new approach for the separation of selected triazole fungicides, hexaconazole, tebuconazole, propiconazole, and difenoconazole. Using a polybutadiene-coated zirconia column at temperatures of 100-150 degrees C, clear separations were achieved when 100% purified water was utilized as organic-fr...
Captan and folpet react with thiophenol in the presence of triethylamine in acetonitrile to form a bis (phenyl) trithiocarbonate which reacts with 2, 4dinitrophenyl hydrazine in the presence of hydrochloric acid to form corresponding hydrazone. The latter is transformed into an intense red quinoidal ion immediately on making solution alkaline. This observation have been made the basis of a simp...
Phosphonate fungicides are used by golf course managers to control Pythium diseases, suppress anthracnose basal rot, alleviate summer stress, and improve turf quality. In many areas of the northeast, phosphonate products are applied at regular intervals throughout the summer as part of a fairway and putting green management program. Currently, over a dozen phosphonate fungicides and fertilizers...
The three major fungal pests of grapevine, powdery and downy mildew and grey mould are mostly controlled through the application of fungicides. Some of those are particularly active against the grey mould agent Botrytis cinerea. The panel of fungicides authorized in France comprise since many years anilinopyrimidines, benzimidazoles, dithiocarbamates, dicarboximides, phenylpyrroles and pyridina...
Triazole fungicides are systemic fungicides applied to protect crops from fungus infections. Its use must be controlled due to the potential harmful effects in environment and human health. Before determination with a chromatographic system, analyte must be isolated and preconcentrated with an extraction step. This review presents the most used microextraction techniques for those compounds in ...
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