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- Title
多菌灵等4 种杀菌剂对烟草灰霉病菌的室内生物活性.
- Authors
周 浩; 李丽翠; 樊 杰; 余知和; 汪汉成; 陈兴江; 马 骏; 刘锦华
- Abstract
The in vitro bioactivities of four fungicides (carbendazim, iprodione, pyrimethanil, propiconazole) against Botrytis cinerea from tobacco were investigated using mycelial growth rate method and spore germination method. Their protective and curative activities against grey mould on detached leaves were investigated. The results showed that the four fungicides had different inhibitory activities. The fungicide with the highest toxic potential against the mycelial growth of B. cinerea was carbendazim with average EC50 value of 0.06 mg/L, followed by propiconazole, pyrimethanil and iprodione, with average EC50 values of 0.36, 0.53 and 0.60 mg/L, respectively. The EC50 values of fungicides against spore germination were as followings: iprodione (2.05 mg/L), propiconazole (2.21 mg/L), pyrimethanil (10.56 mg/L) and carbendazim (131.23 mg/L). The most effective fungicide with the best protective and curative activities was iprodione and carbendazim. At the concentration of 200 mg/L, protective control efficacies were both 100% and the curative efficacies were 98.3% and 91.8%, respectively. This study provided scientific basis for guiding the control of tobacco grey mould.
- Publication
Chinese Journal of Pesticide Science / Nongyaoxue Xuebao, 2019, Vol 21, Issue 2, p238
- ISSN
1008-7303
- Publication type
Article
- DOI
10.16801/j.issn.1008-7303.2019.0033