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土传线虫是为害植物根系造成线虫病害的重要植物线虫类群。施用滴滴混剂熏蒸土壤对土传线虫有很高的杀除效果。滴滴混剂是生产环氧氯丙烷的副产品,混合1,3二氯丙烯(占50—60%,为杀线虫的主要成分)、1,2二氯丙烷(占25%左右,为辅助剂,但对有的线虫效力比1,3二氯丙烯好)和其它氯化物(占13—20%),茶褐色酱油状液体,比重1.22,有持续挥发性和强烈刺激性氯臭气味。施入土后,挥发出强劲的有毒气体,经土孔逸散20厘米远,熏死在土内游离的线虫。据协作单位及有关京郊区县田间连年试验,防病效果85%至95%以上,增产百分之几十甚至1倍多;据国外资料介绍,对杂草(种子、幼苗)地下害虫幼虫和建筑物内白蚁也有防除效力;并可促进肥料分解,没有残毒问题。
Soil-borne nematodes are the important plant-nematode groups that cause nematode damage to plant roots. Applying drip mixture fumigation soil on soil-transmitted nematode has a high killing effect. Dropping mixture is a by-product of the production of epichlorohydrin, mixed with 1,3-dichloropropene (accounting for 50-60% of the main components to kill nematodes), 1,2 dichloropropane (accounting for about 25%, as adjuvant , But to some nematodes than 1,3 dichloropropene) and other chlorides (13-20%), brown soy sauce-like liquid, the proportion of 1.22, there is a persistent volatile and strong irritating odor of chlorine odor. After the application of soil, volatilize a strong poisonous gas, escape through the soil 20 centimeters away, smoked dead in the soil free nematodes. According to successive trials conducted by collaborating units and relevant suburbs in Beijing suburbs, the effectiveness of disease prevention is over 85% to 95% and the yield is increased by several dozen or even more than 1%. According to foreign materials, the effects of weeds (seeds and seedlings) on pests of underground pests Termites and buildings also have control effectiveness; and promote fertilizer decomposition, there is no residue problem.