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Study on Screening of Fungicide and Control Effect of Fusarium Wilt in Watermelon(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年13期
Page:
154-157
Research Field:
Publishing date:

Info

Title:
Study on Screening of Fungicide and Control Effect of Fusarium Wilt in Watermelon
Author(s):
WANG Cui-xia; JI Li-jing; LI Qiu-sheng; LI Cong-cong; KONG Ling-xiao
IPM Center of Hebei Province,Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China，Ministry of Agriculture，Institute of Plant Protection，Hebei Academy of Agricultural and Forestry Sciences,Baoding，Hebei 071000
Keywords:
watermelon Fusarium wilt; fungicides; toxicity; control efficacy
PACS:
S 436.5
DOI:
-
Abstract:
The inhibition activities of 10 chemical fungicides against Fusarium oxysporium f.sp. niveum ?were determined by the mycelial growth rate test.Control efficacies of the 4 promising fungicides were carried out under greenhouse condition.The results showed that inhibition effects of 5 fungicides including the 80% carbendazim 2 000×，25% tebuconazole 4 000×，40% flusilazole 3 000×，25% propiconazole 2 000×，12.5% diniconazole 4 000× were above 90%.The inhibition activity of diniconazole against mycelial growth of the pathogen was strongest，which EC50 was 0.1901 mg/L，then the next were tebuconazole (EC50- 1.8723 mg/L) and carbendazim (EC50-1.8847 mg/L).The control efficacies of carbendazim and diniconazole to watermelon Fusarium wilt were 72.07% and 8952% in the pot experiments in greenhouse，respectively.However，it found that diniconazole significantly inhibited the growth of watermelon seedling.In conclusion，carbendazim was recommended to be used for controlling watermelon Fusarium wilt in commercial fieldapplying into soil.

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Last Update: 2014-08-08