نتایج جستجو برای: lc90
تعداد نتایج: 276 فیلتر نتایج به سال:
to identify the larvicidal activities of silver nanoparticles synthesized with acanthus ilicifolius (a. ilicifolius) leaf extract against the larvae of armigeressubalbatus and aedesaegypti. in vitro larvicidal activities such as lc50 and lc90 were assessed for the a. subalbatus and ae.aegypti larval species. further, characterization using different techniques such as uv, sem,edax, xrd and fti...
Mosquitoes can transmit the terrible diseases to human beings. Soil-borne fungal products act as potential source for low-cost chemicals, used for developing eco-friendly control agents against mosquito-vector borne diseases. The prime aim of study was to check the larvicidal potential of fungus mycelia (by ethyl acetate solvent) extract from Penicillium daleae (KX387370) against Culex quinquef...
The effect in alcoholic extract of Bark of Albizzia lebbeck was studied for antifilarial activity using Setaria cervi (S. cervi) worm procured from the freshly slaughtered buffalo.We used the whole worm (w.w.) preparation and nerve muscle (n.m.) complex of Setaria cervi (S. cervi). The n.m. complex is made by stripping the cuticle of the worm. The effect was stimulant in nature in both the prep...
Objectives: To determine the phytochemical screening and major phytocompounds from Indigofera tinctoria leaf methanol extract as well ovicidal larvicidal toxicity towards medical agronomic pests, Aedes aegypti, Culex quinquefasciatus, Spodoptera litura Helicoverpa armigera. Methods: In this study, was done by prescribed method, finding of phyto-constituents were made GC-MS analysis, selected pe...
Laboratory bioassays were used to determine the efficacy of (S)-methoprene against 7 species of Australian mosquitoes. The 90% lethal concentration (LC90) ranged from 0.17 ppb for Aedes vigilax to 6.54 ppb for Culex sitiens. The survival of adults exposed as larvae to 2 sublethal dosages of (S)-methoprene was compared to a control group. Little effect was noted for Cx. sitiens and Culex annulir...
Extracts of Polygonum hydropiper leaves in Methanol was introduced to the 3rd and 4th instar larvae Aedes aegypti with various concentration (.25–1.5 μg/ml). Insecticidal assays data showed significant mortality against larvae. The LC50 LC90 value after 24 hours exposure 0.002 0.47 μg/ml respectively. As predicted result that larvicidal activity P. on Ae. dose reliant. clearly exhibited methano...
The biocidal activity of three steam distilled wood essential oils-incense cedar, Calocedrus decurrens (Torr.) Florin; Port-Orford-cedar, Chamaecyparis lawsoniana (A. Murr.) Parl.; and western juniper, Juniperus occidentalis (Hook)--were evaluated against adult Aedes aegypti (L.) (Diptera: Culicidae) and Xenopsylla cheopis (Rothchild) (Siphonaptera: Pulicidae) and nymphal Ixodes scapularis Say ...
We investigated the residual efficacy of four insecticide formulations used in Chagas disease vector control campaigns: cyfluthrin 12.5% suspension concentrace (SC), lambda-cyhalothrin 10% wettable powder (WP), deltamethrin 2.5% SC, and 2.5% WP on four types of circular blocks of wood, straw with mud, straw with mud painted with lime, and mud containing 5% of cement. Three concentrations of the...
Patients with high-risk neuroblastoma (NB) initially respond to aggressive, alkylator-based therapy only to die from recurrent disease that is refractory to chemotherapy, including alkylating agents. We examined the ability of buthionine sulfoximine (BSO)-mediated glutathione (GSH) depletion to modulate melphalan (LPAM) resistance in five NB cell lines established after progressive disease foll...
BACKGROUND The resistance status of malaria vectors to different classes of insecticides used for public health has raised concern for vector control programmes. Alternative compounds to supplement the existing tools are important to be searched to overcome the existing resistance and persistence of pesticides in vectors and the environment respectively. The mosquitocidal effects of Glycosmis p...
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