Occurrence Regularity and Control Strategy of Cydia trasias in Beijing Fangshan Chengguan Region
Wang Ling-x · 2012
In view of the pest problems of Sophora japonica, which are occurred in East and West Street of Beijing Fangshan Chengguan region, and caused by Cydia trasas, the occurrence period and quantity are monitored, use of trap trapping male adults, by the Fangshan garden. According to the monitoring result, the pest occurrence regularity are mastered, and the reasonable chemical control time and new pharmaceutical formulations are make, the pest of Cydia trasas can be effectively suppressed.