| 【Objective】In order to improve the activity of pesticides to target organisms of rice, delay pesticideresistance and reduce ecological risk, the control effect, toxicity and residues of 14 pesticides with high-efficiency and low-risk on rice diseases and insect pests were studied.【Method】According to the Guideline for the Testing of Pesticide Residues in Crops, the field experiments of residues of 14 pesticides were carried out. According to the Pesticide-Guidelines for the Field Effi cacy Trials，the field efficacy trials were conducted. The pesticide residues in different samples（rice, brown rice） were detected by HPLC-MS/MS and GC.【Result】Satisfactory control effects were obtained under the treatments of abamectin 2% EW, buprofezin 70% WG, chlorantraniliprole 0.4% Gr, emamectin benzoate 5% SC, thiamethoxam 25% WP, nitenpyram 10% AS, pymetrozine 25% WP, dinotefuran 20% WG, thiosultap-monosodium·chlorpyrifos 25%WP, difenoconazole 50% EW, isoprothiolane 5% SO, azoxystrobin 40% SC, trifloxystrobin 75% WP, thiosen copper 20% SC. The results showed that the residues of the above 14 pesticides in rice were all lower than the maximum residue limits of China. According to the characteristics of rice production structure, the occurrence regularity of diseases and insect pests, the action mode and persistence of the above 14 pesticides, the access spectrum of high-efficiency and low-risk pesticides in safe production of rice was constructed.【Conclusion】The above 14 pesticides can be used as the main recommended pesticides for the control of diseases and insect pests in rice. High-efficiency and low-risk pesticide is the key technology support for rice disease and pest control in the future, which is of great significance to promote the sustainable control of rice diseases and insect pests, delay the occurrence of pesticide resistance, improve the utilization rate of pesticides and ensure the quality and safety of rice. |
