条件筛选
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China's first local standard for viral insecticides issued
Recently, the Hubei provincial local standard "Helicoverpa armigera nucleopolyhedrovirus suspension concentrate" passed approval by the National Standardization Committee and was officially issued. The standard was led by Sun Xiulian's research group at the Wuhan Institute of Virology, Chinese Academy of Sciences, together with relevant teams from the Hubei Academy of Agricultural Sciences and other institutions.
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How effective are neem seed extract and neem oil as insecticides?
Have you heard of neem plant insecticide? This is an insecticide made from insecticidal compounds extracted from a plant. The development and use of neem plant insecticide seems to have become a worldwide trend. In Thailand, I saw that some places already use neem as street trees, and flower markets everywhere