|Table of Contents|

Toxicity and Field Control Efficacy of Eight Chemical and Biological Fungicides on Strawberry Root Rot

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年17
Page:
49-53
Research Field:
Publishing date:

Info

Title:
Toxicity and Field Control Efficacy of Eight Chemical and Biological Fungicides on Strawberry Root Rot
Author(s):
WU Xiaoyun1; HU Zunrui1; HAN Zhenqin1; JIN Na1; SONG Jiannan2
(1.Department of Horticulture,Beijing Vocational College of Agriculture,Beijing 102442;2.College of Plant Science and Technology,Beijing University of Agriculture,Beijing 102206)
Keywords:
fungicides; strawberry; root rot; toxicity test; field efficacy
PACS:
-
DOI:
10.11937/bfyy.20194265
Abstract:
The toxicity and field control effects of thiophanate-methyl,Jia-tuo,oxadixyl,soil easy,polyoxin,Trichoderma harzianum,Pythium oligandrum and Bacillus subtilis on strawberry root rot were conducted by the methods of the mycelial growth rate and root-irrigation respectively.The results showed that strawberry root rot in Fangshan was mainly caused by Colletotrichum gloeosporioide,Rhizoctonia solanisp and Fusarium equiseti.The in vitro experiment result showed that among the 4 chemical fungicides,thiophanate-methyl showed strong virulence against Colletotrichum gloeosporioide,Rhizoctonia solanisp and Fusarium equiseti,and the EC50 was 1.7,5.4，5.0 mg?mL-1,respectively.Among the four biological fungicides, Bacillus subtilis showed strong virulence against the three pathogens,with EC50 29.3,106.9,57.3 mg?mL-1,respectively.The results of field experiments showed that the eight fungicides had different control effects against root rot on different strawberry varieties.Chemical fungicide oxadixyl,thiophanate-methyl and the biological fungicide Bacillus subtilis had better control effects on root rot of two strawberry varieties,and the control effects were over 70.0%.

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Last Update: 2020-11-27