【摘要】 在大田条件下研究了15%铁灭克(Temik)、3%辛硫磷(Phosim)、5%线敌(Ethoprophos)、10%福气多(Fosthiazate)4种化学杀线虫剂及其不同剂量对小麦胞囊线虫病的防治效果。结果表明:15%铁灭克22.5 kg/hm2处理明显优于其他药剂处理,该处理在苗期、扬花期、灌浆期的防治效果分别为54.01%,60.81%和52.45%,收获后每100 g干土壤的胞囊数仅为2.67个,比对照减少95.29%;15%铁灭克15 kg/hm2、5%线敌30 kg/hm22个处理的防治效果次之,均在30%以上,收获后每100 g干土中胞囊数分别比对照减少82.94%和76.48%;5%线敌15 kg/hm2、10%福气多30 kg/hm2、10%福气多22.5 kg/hm2和3%辛硫磷22.5 kg/hm2几个处理的防治效果较差,均低于25%,收获后每100 g干土的胞囊数分别比对照减少54.12%,58.83%,68.24%和21.18%。从对小麦生长影响情况来看,15%铁灭克处理表现为促进生长,但5%线敌和10%福气多处理有一定程度的抑制作用,而3%辛硫磷处理影响不大。更多还原

【Abstract】 The effect of 4 kinds of nematicides,Temik,Phosim,Ethoprophos and Fosthiazate,on the cereal cyst nematode in wheat were test in the field. The results showed that the control effect of Temik 22.5 kg/ha is best one in all treatments,its control effect to cereal cyst nematode are 54.01%,60.81%,52.45% in the seedling stage,flowering stage,filling stage respectively,and the population of cyst after harvest is 2.67 per 100g dry soil dry soil,reducing 95.29% than ck.The effects of Ethoprophos 30kg/ha and Temik 15 kg/ha on control cereal cyst nematode are lower Temik 22.5 kg/ha,but better than others,and the population of cyst after harvest reduced 82.94% and 76.48% than ck respectively.The effects of Ethoprophos 15kg/ha,Fosthiazate 30kg/ha Fosthiazate 22.5kg/ha and Phosim 22.5kg/ha on controlling disease are poor compare with Temik,but the population of cyst in these treatments also remarkable descend after harvest.In the effects of nematicides,Temik showed promoting wheat growth,but Ethoprophos and Fosthiazate were opposite effects in wheat growth.Phosim have no effect on this way almost.更多还原