鸭广梨主要病虫害无公害防治技术研究

目的]探索鸭广梨主要病虫害的高效、环保防治措施,为鸭广梨的无公害栽培提供指导。方法]通过对廊坊市鸭广梨主要病虫害进行无公害防治试验,找出适合鸭广梨的高效、环保防治措施。结果]梨小食心虫发生有4个高峰期,第一高峰期在5月下旬至6月上旬,为越冬代成虫 第二高峰期在7月上中旬,为第1代成虫,第三高峰期在7月下旬至8月上旬,为第2代成虫 第四高峰期在8月下旬,为第3代成虫。梨黑星病病叶5月下旬开始出现,7~8月份为发病盛期。以物理机械防治和生物防治为主,加强梨园的肥水管理,少施化肥,增施有机肥,可减少对环境和果品的污染,促进梨树生长,提高产量和果品品质。结论]该研究为生产无公害果品奠定了基础。

Harmless Control Technology of the Main Diseases and Pests in Yaguang Pear

Objective] The purpose was to explore the high efficient and environmental control measures of the main diseases and pests in Yaguang pear and provide guidance for its harmless cultivation.Method] The high efficient and environmental control measures suitable for Yaguang pear were found through performing harmless control experiment on its main diseases and pests in Langfang City.Result] The occurrence of oriental fruit moth had 4 peak periods.The 1st peak period was from late May to early June and the p...