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| Control Tests of Celery Yellow Wilt by Fungicides and Bacillus M3 or S11 Strain |
| Wang Yanli，Yu Guohui，Chen Yuanfeng，Yang Zihong，Chen Yanhong，Li Yongjian |
| Zhuhai Agriculture Science Research Center，Zhuhai，519075 |
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Abstract Celery yellow wilt is caused by Fusarium oxysporum f. sp. apii. The integrated control of this disease by fungicides and bio-control bacteria were studied. The results showed that the concentration of pathogenic spores in seedling substrate were reduced obviously by treated with 50 % carbendazim WP, 50 % thiram-carbendazim WP or 40 % carbendazim-thiram WP. The elimination rates of spores were over 99.00 %. After the seedlings were transplanted into the fields, the disease incidence of celery yellow wilt were decreased greatly by treated with those 3 fungicides respectively or treated instead of Bacillus strain S11 or M3. The highest control effect was up to 85.98 %. Among these treatments, 50 % carbendazim WP continuous treatment or using Bacillus S11 or M3 instead 50 % carbendazim WP in the filed stage had no negative influence on the height and weight of celery.
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Received: 10 May 2010
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