摘要
建立茶园黑刺粉虱越冬代羽化始盛期预测模型,为应用黄板控制其发生提供挂板适期。2013—2019年,通过蒲江县3个品种茶园黑刺粉虱越冬代成虫羽化动态调查,确定羽化始盛期与3月日均温的相关性,建立始盛期预测模型;以名山区牛碾坪茶园中成虫发生动态调查结果验证预测模型的拟合度;按375片·hm^(-2)密度悬挂黄板,以不挂黄板茶园为对比,调查在羽化始盛期和始盛期前10 d挂板后第1代幼虫发生量,比较二者对黑刺粉虱的控制效果。羽化始盛期预测模型为:y=-2.1887x+28.934(R^(2)=0.9346);于羽化始盛期挂板,对茶园第一代黑刺粉虱控制效果最高时为80.38%,明显优于始盛期前10 d挂板。预测模型与实际发生情况拟合度高,结合天气预报,预测成虫始盛期并指导悬挂黄板,可更好地控制黑刺粉虱的发生。
In order to provide the best period to control the outbreak of Aleurocanthus spiniferus by yellow sticky trap in tea plantation,a prediction model of the beginning peak period of overwintering pupa emergence was established.From 2013 to 2019,through the investigation on the outbreak dynamics of the beginning peak of overwintering pupa emergence of A.spiniferus in three varieties of tea plantations in Pujiang County,the correlation between the beginning peak period of pupa emergence and the effective daily average temperature in March was determined,and the prediction model of the beginning peak period was established.The fitting degree of the model was verified by the dynamic investigation results of the overwintering generation of A.spiniferus in Niunianping tea plantations of Mingshan district.According to the density of 375 pieces of per hectare,the yellow sticky traps were hung over the tea shed during the beginning peak period of overwintering pupa emergence and before 10 days than that in 2019.The larvae's numbers of the first generation were investigated and the control effect was compared.The model for predicting the beginning peak period of overwintering pupa emergence was:y=-2.4476x+43.782(R^(2)=0.8436).Hanging the yellow sticky traps over the tea shed during the beginning peak period of overwintering pupa emergence,the control effect on the first generation,being up to 80.38%,was better.The prediction model fitted well with the actual occurrence.Combined with the weather forecast,it could be better controlled the outbreak of A.spiniferus and guiding the hanging of the yellow sticky traps.
作者
王迎春
李兰英
尧渝
龚雪蛟
刘东那
黄颖博
WANG Yingchun;LI Lanying;YAO Yu;GONG Xuejiao;LIU Dongna;HUANG Yingbo(Institute ofTea Research,Sichuan Academy of Agricultural Sciences,Chengdu,Sichuan 610066,China)
出处
《天津农业科学》
CAS
2022年第5期71-74,共4页
Tianjin Agricultural Sciences
基金
国家现代茶叶产业技术体系成都综合试验站(CARS-23)
四川省“十四五”茶树育种攻关项目(2021YFYZ0025)。
关键词
黑刺粉虱
越冬代羽化始盛期
预测模型
控制效果
Aleurocanthus spiniferus
the beginning peak period of overwintering pupa emergence
prediction Model
the control effect
