نتایج جستجو برای: pyrethrins

تعداد نتایج: 617  

Journal: :Agronomy 2022

According to the European Directive 2009/128/EC and subsequent provisions activated in member states, conventional pesticides should be progressively replaced by “non-chemical tools and/or measures”. The identification of reliable alternatives is crucial achieve this objective. A project (PURE) was funded investigate topic with reference annual perennial crops. In framework, a number natural in...

Journal: :Crop Protection 2021

Melanaphis sacchari (Zehntner) is a major pest of sorghum, Sorghum bicolor (L.) Moench, in the United States and neighboring Caribbean countries including Haiti. Laboratory, greenhouse, field experiments were conducted to determine effects biological insecticides on M. infesting sorghum. Azadirachtin, pyrethrins, Beauveria bassiana strain GHA, Isaria fumosorosea Apopka 97, Chromobacterium subts...

Journal: :Applied sciences 2023

We investigated the repellency and toxicity of eight plant extracts containing celangulin, cnidium lactone, matrine, nicotine, pyrethrins, rotenone, stemonine veratrine against western flower thrips (Frankliniella occidentalis Pergande; Thysanoptera: Thripidae). Flowers treated with 0.05% rotenone harbored fewer in two- multiple-choice bioassays. When evaluated at concentrations varying from 0....

Journal: :Environmental toxicology and chemistry 2008
Jerome J Schleier Robert K D Peterson Paula A Macedo David A Brown

One of the most effective ways of managing adult mosquitoes that vector human and animals diseases is the use of ultralow-volume insecticides. Because of concerns about the safety of the insecticides used for the management of adult mosquitoes, we conducted an environmental fate and efficacy study in Princeton and Colusa (both CA, USA) after aerial applications of pyrethrins and piperonyl butox...

2002
Robert F. Ryan

Pyrethrum is derived from the dried flowers of the plant Tanacetum cinerariifolium. The name given to the active insecticidal components of the dried flowers is "pyrethrins". Tasmanian pyrethrum production is among the most innovative, high-tech agricultural industries in the world. With an output that nearly quadrupled since 1996, Botanical Resources Australia (BRA) now supplies more then 30% ...

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