保幼激素类似物Methoprene 作为昆虫生长调节剂用于蚊子控制 OCH3 http://www.altosid.com oduct Infor 注射一种提取于花坛植物的早熟素于伏蝇，能抑制咽侧体产生保幼激素 Precocene-from the common bedding plant,Ageratum houstonianum An extract of this plant produces a chemical that selectively kills the cells of the corpora allata.thus no TH is produced.Below on the left is a photo showing the healthy,normal CA in adult Phormia regina while on the right is the effect of precocene injection.Notice CA size change Corpora allata Corpora allata 丝弹显典路饼 加-g7Then0ia]岁u5扣ad/9yoe短