Improvement of Physiological Control Methods of Adult Bradysia odoriphaga and Their Field Control Effects

【Objective】The objective was to explore suitable methods to control, Bradysia odoriphaga Yang et Zhang, a major pest that damage Chinese chives.【Methods】The oviposition taxis of adult B. odoriphaga to different organic fertilizer was studied by selective experiment and the trapping and killing effect of mixture of sugar-acetic acidethanol (MSAE) with fermented manures were studied based on selective experiment. 40% phoxim EC, 5% chlorfluazuron EC and yellow board were used as CK to explore the field control effects of the comprehensive application of decomposed animal manure, MSAE, yellow board and biogas slurry on B. odoriphaga Yang et Zhang. 【Results】Cow dung, chicken manure, sheep manure and mushroom residue had significant attraction to oviposition of adult B. odoriphaga Yang et Zhang. The application of MSAE with cow dung and chicken manure could enhance the trapping and killing effect on adults. The biogas slurry-yellow board treatment, like drip irrigation with two chemical pesticides, showed rapidly available effect on B. odoriphaga, and 9 days after the treatment, the plant protection rate was significantly higher than that of other treatments.The control effects of MSAE-cow dung, yellow board, and yellow board-cow dung treatment were unremarkable at the early stage, but gradually increased 36 days after treatment, and reached above 66% 63 days after treatment. The protective effect of biogas slurry-cow dung treatment on Chinese chives was was comparable to drip irrigation of two insecticides 9 d, 36 d and 63 d after treatment.【Conclusion】Adding in animal manure into MSAE could improve the trapping effect of MSAE on adult B. odoriphaga . The control effect of the combined application of animal manure, MSAE, yellow board and biogas slurry on adult B. odoriphaga was comparable to that of drip irrigation with recommend dosage of Phoxim and Fluridin, therefore, it was worth recommending in the control of B. odoriphaga.