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桑蓟马是侵袭桑树叶片的主要害虫之一。它的成虫和若虫的针状口器刺入桑叶组织内,吸取其液汁,被害叶片失去水分而硬化,颜色由绿变褐,且向背面卷缩。该虫在桑园终年可见,世代重叠,尤以干燥的秋季危害最厉害。我所自1980年以来,开展了对桑蓟马的防治试验,经过多次实地观察,发现在大暴雨过后,桑蓟马明显减少,而且由于其成虫虽有翅膀,但迁飞能
Stem thrips are one of the major pests that attack mulberry leaves. Its adult and nymph needle-like mouth pierce into the mulberry leaf tissue, to draw its juice, the victim leaves the water loss and hardening, the color from green to brown, and curled to the back. The insects can be seen all year round in mulberry fields, generations overlap, especially in the dry autumn is the most harmful. Since 1980, I have carried out the prevention and control test against S. thrips. After many field observations, it was found that after the heavy rainstorm, the M. tuberosum was significantly reduced, and because its adults had wings,