浓度95%小蘖碱对2种辣椒炭疽病的防治效果

Control Effectiveness of 95% Berberine on Two Pepper Anthracnose Fungi

[目的]为小蘖碱的实际应用提供理论依据。[方法]研究新型植物源农药小蘖碱对辣椒黑点炭疽病和红色炭疽病的室内毒力和田间药效。[结果]浓度95%小蘖碱能够有效抑制辣椒黑点炭疽病菌和红色炭疽病菌的菌丝生长,对2种辣椒炭疽病原菌EC50分别为44.505 8、39.247 5μg/ml。田间药效试验表明,该药剂对辣椒炭疽病具有良好的防效。[结论]浓度95%小蘖碱防治辣椒炭疽病具有广阔前景,可在生产中示范应用。

[Objective] The research aimed to provide the theoretical basis for the application of berberine.[Method] The toxicity of the new botanical pesticide berberine,to Colletotrichum capsici and Colletotrichum gloeosporioides and the field control effectiveness on the pepper anthracnose were investigated.[Result] EC50 of berberine to Colletotrichum capsici and Colletotrichum gloeosporioides were 44.505 8 and 39.247 5 μg/ml,respectively.Field efficacy trials showed that 95% berberine had a good control effect on pepper anthracnose.[Conclusion] 95% berberine had a broad prospect for the prevention of the pepper anthracnose,which could be applied in the production.