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棕榈蓟马(Thrips Palmi Karny)主要为害葫芦科和茄科等蔬菜。葫芦科中以节瓜、冬瓜、西瓜的受害较为严重;茄科中多为害茄子。以成、若虫锉吸瓜类的嫩叶、嫩梢和幼果的汁液,使嫩梢、嫩叶变小、变硬,茸毛呈灰褐色,生长缓慢,节间缩短,呈丛生状;受害幼瓜茸毛呈黑色,表皮粗糙、灰色、失去光泽,严重时造成落果,影响产量和质量。从1982年以来,我们对节瓜、冬瓜上发生的蓟马,采用塑料薄膜覆盖土面(简称地膜)进行防治,效果较好。现将试验结果整理报道如下。
Thrips Palmi Karny is mainly responsible for vegetables such as Cucurbitaceae and Solanaceae. Cucurbitaceae in section gourd, melon, watermelon victims more serious; Solanaceae more harmful eggplant. To nymphs filing the melon leaves, tender shoots and young fruit juice, the tender shoots, tender leaves smaller, harden, hair was gray brown, slow growth, internodes shortening, was clustered; victimized young Melon fur is black, rough skin, gray, tarnished, causing serious fruit drop, affecting yield and quality. Since 1982, we control the occurrence of thrips in melon and melon, and use plastic film to cover soil surface (referred to as plastic film) for prevention and cure, which has a good effect. The test results are summarized below.