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麦潜叶蝇在我县于1966年曾一度发生较多,以后几年较少,1976年开始回升,1977年和1978年全县大暴发,为害十分猖獗.而且邻近的海门、如东、南通、如皋等县,也相继发生,蔓延为害.一、形态和习性我县发生的麦潜叶蝇,以小麦黑潜蝇为主,约占90%,小麦潜叶蝇约占10%.小麦黑潜蝇成虫体长2.5毫米左右,黑色有光泽.卵乳黄色,透明,卵圆形,长0.5毫米,宽0.2毫米.幼虫为小蛆,乳黄白色,体长3—4毫米.蛹深褐色,长2.2—2.8毫米.小麦潜叶蝇成虫体长2.4毫米左右,暗灰色.卵乳白色,透明,卵圆形,长0.7毫米,宽0.3毫米.幼虫为小蛆,乳黄白色,体长3—4毫米.蛹桔褐色,长2.7—3.5毫米.
Wheat leaf miner in my county occurred in 1966, once more, a few years later, began to rebound in 1976, 1977 and 1978 county outbreak, the damage is very rampant.Also adjacent Haimen, Rudong, Nantong , Rugao and other counties, have also occurred one after another, spread damage.First, morphology and habits My county Mian Mian leaf-leaf flies, mainly to black-leaf miner, accounting for about 90%, wheat leaf miner about 10% The size of the adult larvae is about 2.5 mm in body length and is black and glossy. The egg yolk is yellow, transparent and oval, 0.5 mm long and 0.2 mm wide. The larva is a small maggot with white milk and body length 3-4 mm. , 2.2-2.8 mm long. The adult body of the wheat leaf miner, about 2.4 mm in body length, is dark gray, ovum-white, transparent and ovoid, 0.7 mm long and 0.3 mm wide. The larva is a small maggot with white milk and body length 3 -4 mm. Pupa orange brown, 2.7-3.5 mm long.