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板栗雪片象(Niphades castanea Chao)、栗实象(Curculio davidi Fairmaire)、栗实蛾(Laspseyresia splendana Hubner)、桃蛀螟(Dichocrocis punctiferalis Cuenee)是陕西四种主要栗实害虫。由于它们均隐蔽为害,活动分散,世代不整齐,采用常规喷雾、喷粉、烟熏等方法,效果均不理想,农业措施虽能减少害虫虫口密度,但仍难做到彻底控制。因此,笔者从1984～1986年间,采用3%呋喃丹颗粒剂进行栗林根施防治试验,取得了较好的效果,现报道如下。
Niphades castanea Chao, Curculio davidi Fairmaire, Laspseyresia splendana Hubner and Dichocrocis punctiferalis Cuenee are the four main chestnut pests in Shaanxi Province. Because they are hidden hazards, scattered activities, generations of irregular, using conventional spray, dusting, smoking and other methods, the effect is not ideal, although agricultural measures can reduce pest population density, but still difficult to achieve complete control. Therefore, the author from 1984 to 1986, the use of 3% carbofuran granules for chestnut root control measures and achieved good results, are reported below.