The Occurrence Status and Control Pesticide Screen of Opisina arenosella in Wenchang City,Hainan Province
Opisina arenosella has severely impacted the development of the coconut planting industry and urban green land-scape in Hainan Province.A preliminary investigation on the harmful status of O.arenosella on coconuts in Wenchang was conducted to clarify the current occurrence status of the coconut weaving moth in Wenchang City.The results revealed that O.arenosella occurred mainly in the southern village of Wenchang.Among them,the damage to O.arenosella was the most serious in Baitu village,Dongqun Committee,Changsa town,and a total of 600 mu(1 mu≈ 667 m2),9 000 coconut trees were damaged,while in Tanniu Town,Fengpo Town,Jinshan Town,Wengtian Town,Luodou Farm,and Wenjiao Town,the pest was not found.The results of insecticide screening showed that the corrected control effects of 4.5％beta-cyperme-thrin EC,45％chlorpyrifos EC,and 5％e mamectin benzoate ME were 84.04％,85.52％,and 88.34％,respectively,after five days of treat-ment,which could be used for emergency control of O.arenosella in the field.
Opisina arenosellaoccurrence statusCocos nuciferapesticides screenchemical control
万方数据
维普
