Effect of Growing Groundcover Plants in a Vineyard on Dissipation of Two Neonicotinoid Insecticides

Sustainability

Jui-Hung Yen¹  Chien-Sen Liao²  Wan-Ting Huang³  Wen-Ching Chen³  Ya-Wen Kuo⁴ 

[1] Department of Agricultural Chemistry, National Taiwan University, Taipei 10617, Taiwan;Department of Civil and Ecological Engineering, I-Shou University, Kaohsiung 84001, Taiwan;International Bachelor Program of Agribusiness, National Chung-Hsing University, Taichung 40227, Taiwan;Taichung District Agricultural Research and Extension Station, COA, Chunghua 51544, Taiwan;

关键词: ground cover plants;    vineyard;    dinotefuran;    imidacloprid;   

DOI  :  10.3390/su11030798

来源: DOAJ

【 摘 要 】

This study investigated the difference in neonicotinoids dissipation in a grape vineyard by planting different groundcovers plants, including a control bare field (CF), Arachis pintoi Krap. and Greg. (peanut field (PF)) and Clinopodium brownei (Sw.) Kuntze (mint field (MF)). After one day of pesticide spraying, the highest dinotefuran residue concentration was in 0- to 15-cm soil in the CF (0.161 mg/kg), but 30- to 45-cm and 15- to 30-cm soil in the MF and PF, respectively (0.307 and 0.033 mg/kg). Also, after four days, the highest imidacloprid residue concentration was in 0- to 15-cm soil in the CF. Imidacloprid was not retained in the 30- to 45-cm soils in the PF, but in the MF, a 0.015- and 0.011-mg/kg residue was detected in 30- to 45-cm soil in the second and third soil samplings, indicating a different distribution with different groundcover plants. The dinotefuran absorption ability was greater with A. pintoi than C. brownei, and the imidacloprid absorption ability was greater with C. brownei. Our results suggest that groundcover plants affect the dissipation of neonicotinoids differently, while A. pintoi has a high metabolic rate toward the two neonicotinoids and can increase the soil organic matter content, which is a preferable choice for a groundcover.

【 授权许可】

Unknown