Evaluation of nine nematicides against banana root-knot nematodes | 9种杀线剂对香蕉根结线虫病的防效评价
2011
Rui Kai, Hainan Academy of Agricultural Sciences, ttaikou(China) | Xiao Tongbin, Hainan Academy of Agricultural Sciences, ttaikou(China) | Xie Shenghua, Hainan Academy of Agricultural Sciences, ttaikou(China)
Китайский. 摘 要：对9种不同作用机理的杀线虫制剂进行了田间防效评价试验。结果表明，10％噻唑磷颗粒剂、35％威百亩水剂和98％棉隆微粒剂对根结线虫具有良好的防效，不仅能控制土壤中2龄幼虫数量，而且能非常有效地抑制根结的形成，同时具有速效性好、持效期长、残留毒性低等优点，可作为根结线虫防治的首选药剂；5％丁硫克百威颗粒剂和0．5％阿维菌素颗粒剂具有较好的防效，对土壤中2龄幼虫数量和作物根结的形成具有中等水平的控制能力，速效性好、同时具有一定的持效性；生防制剂5亿活孢子／g淡紫拟青霉颗粒剂和2．5亿孢子/g厚孢轮枝菌微粒剂在香蕉生长前期防效较差，而在生长中期的防效逐渐上升并保持稳定；2．5％二硫氰基甲烷可湿性粉剂的表现一般，但可在生长季节多次灌根使用，同时具有毒性低、使用方便的优点，是当前为数不多的、能在作物生长季节里施用的广谱型杀线虫制剂；50％氰氨化钙颗粒剂的表现最差，仅能一定程度地控制根结线虫数量，未能有效地抑制病害的发展，对2龄幼虫的控制能力不超过60d，生长中后期的2龄幼虫数量和根结指数增长较快。
Показать больше [+] Меньше [-]Английский. Field trials were conducted to validate the efficacy of 9 nematicides in controlling root-knot nematodes. The results indicated that fosthiazate 10% GR, metham-sodium 35% AS and dazomet 98% MG showed the best effects on nematode larvae and formation of root-knots, followed by carbosulfan 5% GR and abamectin 0.5% GR, which had good effects on J2 and production of tumours. 5× 10. living conidia/g Paecilomyces lilacinus GR and 2.55X 108 living conidia/g Verticilliurn chlamydosporium MG had bad effects during growth prophase, but their effects increased gradually during growth midphase. Methylene dithiocyanate 2. 5% WP had marginal effects, but could be used during the whole growth season. Calcium cyanamide 50% GR showed the worst effect and could not control J2 over 60 d after treatment.
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