The general plan is to apply chemicals to places haunted by pests, set up horizontal and vertical soil screens and then integrate them into a complete chemical soil screen system and create environment conditions unfavorable for existence of pests, so as
The general plan is to apply chemicals to places haunted by pests, set up horizontal and vertical soil screens and then integrate them into a complete chemical soil screen system and create environment conditions unfavorable for existence of pests, so as
总体设计为：通过对各易为害虫侵入、生存之部位全面施药，设置土壤水平屏障、竖向屏障，将两者相连而成一完整的化学土壤屏障体系，创建不利于害虫滋生的环境条件，确保不受害虫侵害。