Effect of soil fumigants on degradation of abamectin and their combination synergistic effect to root-knot nematode

文献类型： 外文期刊

第一作者： Li, Jun

作者： Li, Jun;Wang, Qian;Guo, Meixia;Yan, Dongdong;Fang, Wensheng;Ren, Zongjie;Wang, Qiuxia;Ouyang, Canbin;Li, Yuan;Cao, Aocheng;Guo, Meixia;Yan, Dongdong;Fang, Wensheng;Wang, Qiuxia;Ouyang, Canbin;Li, Yuan;Cao, Aocheng

作者机构：

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2018 年 13 卷 6 期

页码：

收录情况： SCI

摘要： Background Root-knot nematode (Meloidogyne spp., RKN) causes a disease that significantly reduces the yield of greenhouse cucumber crops year after year. Chemical control based on a single pesticide is now unreliable mainly due to pest resistance. Fumigant and non-fumigant pesticide combinations can potentially result in effective and economic RKN control. Results Combining the insecticide abamectin (ABM) with fumigants dazomet (DZ) or chloropicrin (CP) significantly extended the half-life of ABM by an average of about 1.68 and 1.56 times respectively in laboratory trials, and by an average of about 2.02 and 1.69 times respectively in greenhouse trials. Laboratory experiments indicated that all the low rate ABM combination treatments controlled RKN through a synergistic effect. ABM diffused into the nematode epidermis more rapidly when ABM was combined with DZ and CP, giving effective nematode control and an increase cucumber total yield, compared to the use of these products alone. ABM combined with CP or DZ produced significantly higher total cucumber yield than when these products were used alone. Conclusions A low concentration of ABM combined with DZ in preference to CP would be an economic and practical way to control nematode and soilborne fungi in a greenhouse producing cucumbers.

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