Research on World Agricultural Economy

Study on the Degradation Effect of Plant-Derived Active Ingredients on Organophosphorus Pesticides

Jun Sun

Shandong Rengjian Biotechnology Co., Ltd., Jinan, Shandong, 250200, China

Tongxin Zhang

Shandong Rengjian Biotechnology Co., Ltd., Jinan, Shandong, 250200, China

DOI: https://doi.org/10.36956/rwae.v1i1.162

Received: 21 October 2020; Published: 21 October 2020

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Abstract

In order to explore new ways and methods for the degradation of organophosphorus pesticides, the degradation effects of plant-derived active ingredients on three organophosphorus pesticides were studied. Rhubarb, Pittosporum bark, Hibiscus bark, and Chinese gall in 9:4:3:2 parts were mixed by mass, ground and soaked in water, and the concentration changes of organic phosphorus pesticide before and after the test were compared through GC-MS quantitative detection method and rapid pesticide residue measurement method to clarify its degradation effect on organophosphorus pesticides. The results showed that the degradation rates of chlorpyrifos and parathion were 93.2% and 92.9% respectively in the extract within 2 minutes; the degradation rate of dichlorvos was 66.67% in the extract within 17 hours, and the degradation rate of chlorpyrifos was 48.69% within 11 hours. This study shows that the extracts of rhubarb, sea tongs bark, hibiscus bark, and gallnut have significant degradation effects on chlorpyrifos, parathion, dichlorvos and other organophosphorus pesticides.

Keywords: Organophosphorus pesticides, Plant-Derived active ingredients, Pesticide degradation, Chinese medicine agriculture, Soil remediation

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