|Table of Contents|

Toxicity Test of Thirteen Fungicides on Two Main Pathogens Causing Sweet Cherry Leaf Spot Disease

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年18
Page:
37-41
Research Field:
Publishing date:

Info

Title:
Toxicity Test of Thirteen Fungicides on Two Main Pathogens Causing Sweet Cherry Leaf Spot Disease
Author(s):
JI Shuxian; ZHOU Yueyan; ZONG Xinying; LI Xinghong; ZHANG Wei; YAN Jiye
(Institute of Plant Protection,Beijing Academy of Agricultural and Forestry Sciences/Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North China,Beijing 100097)
Keywords:
cherry; leaf spot; Alternaria alternata; Colletotrichum gloeosporioides; toxicity test
PACS:
-
DOI:
10.11937/bfyy.20220934
Abstract:
The two main pathogens Alternaria alternata and Colletotrichum gloeosporioides of sweet cherry leaf spot disease in Beijing was used as test material,the toxicity of thirteen fungicides to the two main disease was determined by the mycelial growth rate method,in order to screen out fungicides with strong inhibitory effect and provide reference for the prevention and control of sweet cherry leaf spot disease in Beijing.The results showed that among the experimental fungicides,10% difenoconazole WG had the strongest inhibitory effect on the mycelial growth of 2 strains of A.alternata,with EC50 values of 0.486 8 mg?L-1 and 0.196 5 mg?L-1,followed by 250 g?L-1 pyraclostrobin EC,50% boscalid WG and 2% pyrimidine nucleoside antibiotic AS.100 billion CFU?g-1 Bacillus subtilis had the best inhibitory effect to the 2 strains of Colletotrichum gloeosporioides,with EC50 values of 0.066 4 mg?L-1 and 0.000 4 mg?L-1,followed by 25% prochloraz EC,10% difenoconazole WG and 430 g?L-1 tebuconazole SC.

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Last Update: 2022-11-23