Methods In the present study, marine fluorescent pseudomonads were screened against various human pathogenic bacteria and plant fungal pathogens. An autolyzed cell free culture filtrate of selected isolate was used for the synthesis of silver nano particles and characterized using UV, FTIR, XRD and AFM analysis. The antimicrobial efficiency along with larvicidal activity of the synthesized nano...

oil (the substance recommended as the panacea by the British Medical Journal). Celli's experience with this substance, however, by no means leads him to give it the first place. In making their very numerous experiments Celli and Casagrandi take as the criterion for judging the larvicidal action of any given substance, the time taken to kill the larvre, and they consider any substance inefficac...

A novel series of glucosyl thioureas were synthesized in good overall yields (up to 37% over four steps) from d-glucose and primary amines, and their larvicidal activities toward Mythimna separata Walker were also investigated. This new class of glucosyl thioureas demonstrated low to moderate growth inhibition activity of Mythiman separata Walker, with a growth inhibitory rate of up to 47.5% at...

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background: recently, essential oils and extracts derived from plants have received much interest as potential bioactive agents against mosquito vectors. methods: the essential oils extract from fresh peel of ripe fruit of citrus aurantium and citrus paradisi were tested against mosquito vector anopheles stephensi (diptera: culicidae) under laboratory condition. then chemical com­position of th...

Five original strains of entomopathogenic bacteria with insecticidal activity against mosquito larvae of the genera Aedes, Culex and Anopheles have been isolated from natural conditions in Armenia and characterized. According to morphological, physiological and biochemical parameters, all isolates were identified as Bacillus thuringiensis spp. israelensis (Bti). High larvicidal activity has bee...

The present study indicates the efficacy of extracts and fractions of Quercus lusitania var. infectoria galls (Oliv.) as larvicidal agents and their possible use in biological control of Culex pipiens, the urban nuisance mosquito. Extracts and fractions were tested against second and fourth instar larvae. The LC(50) values of gallotannins were 335 and 373 ppm, respectively for the 2nd and 4th i...

background: dengue fever is a serious public health issue in pakistan for many years. globally plants have been reported to contain compounds with insecticidal properties. these properties have been demonstrated more recently on the larval stages of mosquitoes. therefore, citrus cultivar seeds were evaluated for larvicidal potential against the primary dengue vector aedes aegypti . methods: ext...

accumulations of large quantities of wastes (manure, used litter, dead birds) which are excellent medium for fly-larvae over poultry houses provide breeding places for different groups of fly pests, with house-flies being the dominant species. this project is a comparative lab study. in this research project the larvicidal effects of cyromazine and triflumuron were studied as two insect growth ...

The purpose of this study was to determine the effect larvicidal compounds from garlic fermented on Aedes aegypti and albopictus as a vector dengue fever (DF) hemorrhagic (DHF) then compare mortality identifying active extract. third instar larvae is used in research. It using fungi tempeh for 96 hours. Fermented extracted by centrifuges at 3500 rpm 15 minutes directly test larvicides. Larvicid...