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汉中蔬菜灰霉病菌对嘧霉胺的抗药性检测

Resistance of Botrytis cinerea to Pyrimethanil on Vegetables in Hanzhong

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为明确汉中市蔬菜灰霉病菌对嘧霉胺的抗性分布情况,本研究从汉中11 个县区采集到149 个蔬菜灰霉菌株,并对其进行了敏感性测定.结果表明,汉中蔬菜灰霉病菌对嘧霉胺的平均抗性频率为85.23%,其中,汉台区、南郑区、城固县、洋县、西乡县和勉县等平川6 个县区的敏感菌株数为15 株,抗性菌株数为 110 株,平川 6 个县区抗性菌株的抗性频率都在85%以上;宁强县、略阳县、镇巴县、留坝县和佛坪县等 5 个山区县的敏感菌株数为7 株,抗性菌株数为17 株,山区5 个县抗性菌株的抗性频率都在50%以上.表明汉中市蔬菜灰霉病菌对嘧霉胺已经产生了抗药性,亟需进一步筛选新的杀菌剂来防治蔬菜灰霉病菌.
In order to clarify the distribution of the resistance of Botrytis cinerea to pyrimethanil in Hanzhong,149 strains of Botrytis cinerea were collected from 11 counties in Hanzhong region,and their sensitivi-ty to pyrimethanil was examined.The results showed that the average frequency of resistance of Botrytis cinerea to pyrimethanil in Hanzhong was 85.23%.In Hanzhong Plain region,which includes Hantai District,Nanzheng District,Chenggu County,Yang County,Xixiang County and Mianxian County,110 strains were found to be re-sistant,while only 15 strains were sensitive.In all six of these conditions,the resistance frequencies among re-sistant were all over 85%;In the mountainous area,including Ningqiang County,Lueyang County,Zhenba County,Liuba County Foping County,there were 7 sensitive strains and 17 resistant strains,with the resistance frequencies were all above 50%.It indicates a development of pyrimethanil resistance in Botrytis cinerea in Hanzhong,and further screening for new fungicides is urgently needed to control Botrytis cinerea.

VegetablesBotrytis cinereaPyrimethanilResistance

余正军、杨霄、高鹏、杨小敏、秦宇航、王吕

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陕西省汉中市农业技术推广与培训中心,陕西 汉中 723000

蔬菜 灰霉病菌 嘧霉胺 抗药性

2023

10.3969/j.issn.0488-5368.2023.11.010

陕西农业科学
西北农林科技大学

陕西农业科学

CSTPCD
影响因子：0.388
ISSN：0488-5368
年,卷(期)：2023.69(11)
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