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稻飞虱是水稻生产上一大害虫,本省每年因稻飞虱危害稻谷,损失很大。在50～60年代以为害早稻为主,近几年来,对晚稻为害更为严重,减产1～2成或3～4成,有时防治失策,成片枯死倒禾造成失收。安仁县1974年,全县有54000亩成灾,估计每亩平均减产达100斤。晚稻后期治虫,由于种草子,田里排水,气温又下降,药效降低,同时长期使用同一药剂,害虫抗药性增强,用药量增加,生产成本也增加,稻谷、稻草残毒含量也随之增加,给人畜安全带来不良影响。利用水稻品种之间对稻飞虱的抗性存在的
Planthopper is a large pest on rice production. The province infests rice every year due to planthopper, which causes great losses. In the 1950s and 1960s, it was mainly damaging early rice. In recent years, the damage to the late rice was more serious. The yield was reduced by 1-2% or 3-4%. Anren County in 1974, the county has 54000 acres of disaster, it is estimated that the average yield per acre up to 100 pounds. Late pest control late pest, due to the seeds and straw, the field of drainage, the temperature dropped again, reducing efficacy, while long-term use of the same agent, pest resistance increased, the dosage increased, the production costs also increased, rice, straw residues also increased, Have adverse effects on the safety of humans and animals. The use of resistance between rice varieties to planthopper exists