湘北烟蚜对晒红烟危害损失及防治指标的研究

Study on the Damage and Control Index of Myzus Persicae Sulzer in the Tobacco-growing Area of Northern Hunan

通过大田不同蚜量接虫试验,得出了湘北烟蚜对烟草的直接和间接损失,并根据Eduards等(1964)关于经济阈值的定义和H·Cchiang(1979)提出的经济阈值通用模型,结合本试验的实际,以模型1和2分别计算出烟蚜危害的经济阈值和防治指标。

Through the Breed- tobacco- Budworm experiment of the difference gwantioy Badworms in the field, We have obtained the direct and indirect damage caused by tobacco budworm Myzus persicae sulzer of the first generation in the tobacco-growing area of northern Hunan, According to the dfintion Fduard etc (1964) about economic threshold current model H.Cchiang ( 1979) adremcell, the economic threshold of the damage and Control index of tabacco budworms are worded out.