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潜叶蝇是营口地区水稻苗期主要害虫。稻苗受其危害,稻叶形成不规则的潜道,而后扩大成片,使叶片下垂、烂掉,严重可使植株枯死。一般受害,推迟生育3—5天。水稻潜叶蝇在营口地区一年发生4—5代。成虫似家蝇,但很小,铅灰色。五月上旬可在秋田看到成虫活动,随机产卵于秧苗上,它喜欢在平浮水面的叶片上产卵。卵很小,长园柱形,在稻叶上形成一个小点。幼虫蛆形,淡黄白色,孵出的幼虫很快咬破稻叶表皮,潜入组织内取食叶肉,并能转株为害。幼虫老熟后在叶内化
Leaf miner is the main pest in rice seedling stage in Yingkou area. Rice seedlings are harmed by it, and the rice leaves form irregular subways, which then expand into pieces that cause the leaves to sag and rot and severely damaging the plants. General damage, delayed birth 3-5 days. Rice leaf miner occurs in Yingkou area 4-5 generations a year. Adult flies, but small, lead gray. In early May, adult activities can be seen in Akita. Eggs are randomly sprouted on the seedlings. They like to lay their eggs on the leaves on a flat surface. Small egg, long park cylindrical, forming a small point on the rice leaves. Larvae maggots, yellowish white, hatched larvae quickly bite the rice leaf epidermis, sneak into the tissue to eat the mesophyll, and translocation damage. After the larvae mature in the leaf internalization