The forecasting models of brown planthopper Nilaparvata Lugens (stol) in Zhejiang Provence

• 出 处: Chinese Rice Research Newsletter
• 发表日期: 1995年03期
• 关键词: brown stol forecasting validation season historical varied counties depended con

Based on the historical data over 15 years from fivecounties including Xiaoshan,Longyou,Pujiang,Wenling,and Huangyan,Zhejiang Province,a se-ries of forecasting models were established by stepwise regression.These models could be used to pre-dict the population size and the level of the main en-dangering generation of brown planthopper(BPH)on late-season rice.After eight years validation,73models were established from 469 ones as a series ofmodels used as long,medium,and short term fore-casting.

Based on the historical data over 15 years from five counties including Xiaoshan, Longyou, Pujiang, Wenling, and Huangyan, Zhejiang Province, a se-ries of forecasting models were established by stepwise regression. These models could be used to pre-dict the population size and the level of the main en-danger generation of brown planthopper (BPH) on late-season rice. After eight years of validation, 73 models were established from 469 ones as a series of models used as long, medium, and short term fore-casting.