Toxicity and Field Control Efficiency of Fungicides Against Strawberry Botrytis cinerea(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Toxicity and Field Control Efficiency of Fungicides Against Strawberry Botrytis cinerea

Author(s):: WANG Li; ZHOU Zengqiang; HOU Hui; (Zhengzhou Fruit Research Institute,Chinese Academy of Agricultural Sciences,Zhengzhou，Henan 450009)

Keywords:: fungicides; strawberry Botrytis cinerea; toxicity determination; field control effect

Abstract:: Taking ‘Tian Chali’ strawberry as material,Botrytis cinerea as test fungus,using mycelium growth rate method,the effect of 12 fungicides on Botrytis cinerea was studied.The results showed that 50 g?L-1 hexaconazole SC had the best toxicity against Botrytis cinerea,with the EC50 value 0.051 9 mg?L-1;500 g?L-1 iprodione SC,430 g?L-1 tebuconazole SC and 400 g?L-1 flusilazole EC also could primely inhibit mycelia growth of Botrytis cinerea in laboratory.6 fungicides were screened to test in the field control trial.Field trials showed that the effect of 50 g?L-1 hexaconazole SC against Botrytis cinerea was the best,the control efficiency reached 81.57%-85.42%;500 g?L-1 iprodione SC,430 g?L-1 tebuconazole SC and 400 g?L-1 flusilazole EC also had better control effect,which were more than 74%;the control effect of 10% polyoxin WP and 3% zhongshengmycin WP were more than 65%.

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Last Update: 2016-07-21