论文部分内容阅读
在温室栽培的一串红、藿香蓟、马蹄莲和爬蔓绣球上释放智利小植绥螨防治二斑叶螨均取得满意的结果。早期(10—11月)释放捕食螨,可减少花卉受害,节省捕食螨数量。于苗期或分盆前释放,还可节省用工。智利小植绥螨的释放量,因叶螨密度、花卉种类、植株大小而异,每次每株释放1—50头不等。3—4月初,如叶螨数量有回升,可释放第二次。一般能控制害螨每叶一头以下。
In greenhouse cultivated a bunch of red, Ageratum, calla lily and creeper hydrangea on the release of Chilean phytase mites control two-spotted spider mites have achieved satisfactory results. Early (October-November) release of predatory mites can reduce flower damage and reduce the number of predatory mites. Release in seedling or sub-basin, but also save labor. Chile Phytoseiid mite release, due to spider mite density, flower species, plant size varies, each release of 1-50 per plant range. From early March to early April, if the number of spider mites has rebounded, the second can be released. Generally control pest mites per leaf below.