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1991—1993年在内蒙古呼伦贝尔盟内进行大豆根潜蝇的综合防治试验示范,取得较好的效果,具体方法是: 1.秋后深翻地,大豆苗前耥一犁 大豆根潜蝇以蛹在5cm左右土层的豆根表皮下越冬,将蛹深埋至15cm以下或翻到地表,可降低冬后的存活率。 2.实行轮作 大豆和禾谷类作物实行3年以上轮作。 3.选用抗虫品种 经多年抗虫性鉴定,认为合丰25、黑河四号、黑河五号和内豆三号为抗虫品种,可在同纬度地区种植或做为育种的亲本材料。 4.施足底肥 在大豆开花初期(大豆根潜蝇化蛹期)追施磷肥或磷酸二铵10kg/亩,促进虫伤愈合,加速新根形成,减少虫害损失。
1991-1993 in Inner Mongolia Hulun Buir League soy bean leaf miner comprehensive prevention and control of experimental demonstration and achieved good results, the specific method is: 1. Autumn deep plowing, Soybean seedlings before a plow soybean root miner fly In the soil around the root layer of 5cm winter overwintering, the pupa deep buried below 15cm or turned to the surface, can reduce the survival rate after winter. 2. Implementation of crop rotation Soybean and cereal crops for more than 3 years of rotation. 3. Selection of insect-resistant varieties after years of insect resistance identification, that Hefeng 25, Heihe No. 4, Heihe No.3 and No.3 bean varieties resistant to insects, can be planted in the same latitude or as a parent material for breeding. 4. Application of sufficient fertilizer In the early flowering of soybean (soybean root parasitized pupal stage) topdressing phosphate or DAP 10kg / mu, and promote insect wound healing, accelerate the formation of new roots and reduce pest losses.