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Screening of Fungicide for Controlling Tomato Bacterial Speck Disease and Its Resistance Identification(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年22
Page:
127-130
Research Field:
Publishing date:

Info

Title:
Screening of Fungicide for Controlling Tomato Bacterial Speck Disease and Its Resistance Identification
Author(s):
SI Tiantao1; XUE Lin2; SANG Yanpeng3; YANG Desong1
(1.College of Agronomy，Shihezi University/Key Laboratory of Oasis Agricultural Disease and Pest Management，Plant Protection and Its Resource Utilization in Xinjiang,Shihezi，Xinjiang 832000;2.Shihezi Vegetable Institute of Xinjiang，Shihezi，Xinjiang 830000；3.Shihezi Science and Technology Bureau,Shihezi，Xinjiang 830000)
Keywords:
tomato bacterial speck disease; toxicity; control effect; resistance
PACS:
-
DOI:
10.11937/bfyy.201622032
Abstract:
Fourteen processing tomatoes were used as materials，indoor toxicity measurement and filed experiment were carried out，the resistance of 14 processing tomato species to bacterial speck of tomato was evaluated and the fungicides were screened.The results showed that 30% dimethomorph?prochloraz was the most antibacterial with 73.88% bacteriostatic rate,6% kasugamycin，56.7% copper hydroxide，30% dimethomorph+prochloraz and 47% kasugamycin+copperoxychloride had stronger virulence，and their EC50 respectively were 8.7 mg?mL-1，9.6 mg?mL-1，10.4 mg?mL-1，10.9 mg?mL-1.The field control effect test results showed that the control effect of the 56.7% cupric hydroxide，47% kasugamycin+copperoxychloride，and 30% dimethomorph?prochloraz to bacterial speck could be up to 60.00% or more，of which 30% dimethomorph+prochloraz had good control effect of 69.66%.The results of resistance appraisal 14 kinds of processing tomato varieties to bacterial speck showed that there were one disease-resistant variety，nine disease-tolerant varieties，four disease-sentive varieties in the varieties tested,30% dimethomorph?prochloraz had better control effect against bacterial speck of tomato.

References:

 

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Last Update: 2017-01-06