Modifying the Formulation of Abamectin To Promote Its Efficacy on Southern Root-Knot Nematode (Meloidogyne incognita) under Blending-of-Soil and Root-Irrigation Conditions,Journal of Agricultural and Food Chemistry

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Modifying the Formulation of Abamectin To Promote Its Efficacy on Southern Root-Knot Nematode (Meloidogyne incognita) under Blending-of-Soil and Root-Irrigation Conditions
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2018-01-16 00:00:00 , DOI: 10.1021/acs.jafc.7b04146
Beixing Li _{1,

2} , Yupeng Ren _{1,

3} , Da-xia Zhang _{1,

2} , Shuangyu Xu ₃ , Wei Mu _{2,

3} , Feng Liu _{1,

3}

Affiliation

The southern root-knot nematode (RKN), Meloidogyne incognita, is the most disastrous and prevalent nematode threat to the production of crops, especially vegetables. In the current study, second-stage juveniles (J2) of M. incognita were collected from five regions near Tai’an, China. The toxicity of abamectin to these J2 had insignificant differences, with LC₅₀ values of approximately 2 mg/L. Two pesticide application approaches (i.e., blending-of-soil and root-irrigation) were adopted in pot experiments; blending-of-soil was more beneficial for promoting the efficacy of abamectin on the RKN of tomatoes. Abamectin microcapsule suspension exhibited superiority to emulsifiable concentrate (EC) at dosages of 5 and 10 mg active ingredient per plant integrating efficacy, root length, plant height, the fresh weight of roots, and the fresh weight of stems + leaves. Adsorption, leaching, and mobility of abamectin in the soil also verified bioactivity test results. Modifying the formulation of abamectin can promote its efficacy on RKN under different application approaches.

更新日期：2018-01-16

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