Investigation of crop damage and food preferences of Bradysia odoriphaga Yang et Zhang
Author of the article:ZHANG Peng** WANG Qiu-Hong ZHAO Yun-He CHEN Cheng-Yu MU Wei LIU Feng***
Author's Workplace：Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai’an 271018, China
Key Words：Bradysia odoriphaga, damage symptom, selectivity
Abstract： [Objectives] To clarify the appropriate companion plants and rotation crops for Chinese chives with respect to minimizing crop damage by Bradysia odoriphaga Yang et Zhang. [Methods] The damage caused by Bradysia odoriphaga to thirteen crops in the season after planting Chinese chives was investigated and the preferences of larvae and adults of B. odoriphaga for different crops were determined using a Y-olfactometer. [Results] The results show that the extent of damage to the thirteen vegetable crops was significantly different. Vegetables of the lily family, including Chinese chives, garlic and onions, were the most severely damaged followed by those of the Compositae. Damage to members of the Solanaceae was not apparent. Both larvae and adults had clear preferences for different crops, among which a preference for Chinese chives was the most apparent whereas members of the solanaceae family were the least preferred. [Conclusion] The results suggest that intercropping and crop rotation can improve the management of B. odoriphaga.