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哈尔滨市呼兰区玉米常年播种面积在9.33万hm2以上,玉米是呼兰区的主栽作物之一。玉米螟是玉米的主要虫害,年发生面积较大,常年减产玉米5%~15%,重发生年可减产30%左右。为了找出航空作业防治效果较好的药剂,呼兰区农业技术推广中心课题组在哈尔滨市呼兰区大用镇沈八村开展了化学药剂与生物药剂利用航空作业防治玉米螟虫害效果试验。
The annual planting area of corn in Hulan District of Harbin is above 93,300 hm2, and the corn is one of the main crops in Hulan District. Corn borer is the main pests of corn, the annual occurrence of larger, perennial cut 5% to 15% of corn, weight reduction can be reduced by about 30%. In order to find out the better aeronautical operation prevention and control agents, Hulan Agricultural Technology Promotion Center Task Force carried out experiments on the effect of chemical agents and biological agents in aviation operations to prevent and control corn borer insects in Shenba Village, Dabu Town, Hulan Dist., Harbin.