Biological Characteristics and Fungicides for Effective Control of <i>Colletotrichum destructivum</i> on <i>Echeveria</i> Perle von Nürnberg

DONG Jinlong

doi:10.19303/j.issn.1008-0384.2022.008.012

Volume 37 Issue 8

Aug. 2022

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DONG J L. Biological Characteristics and Fungicides for Effective Control of Colletotrichum destructivum on Echeveria Perle von Nürnberg [J]. Fujian Journal of Agricultural Sciences，2022，37（8）：1067−1071 doi: 10.19303/j.issn.1008-0384.2022.008.012

Citation:

DONG J L. Biological Characteristics and Fungicides for Effective Control of Colletotrichum destructivum on Echeveria Perle von Nürnberg [J]. Fujian Journal of Agricultural Sciences，2022，37（8）：1067−1071 doi: 10.19303/j.issn.1008-0384.2022.008.012

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Biological Characteristics and Fungicides for Effective Control of Colletotrichum destructivum on Echeveria Perle von Nürnberg

doi: 10.19303/j.issn.1008-0384.2022.008.012

DONG Jinlong

Changtai Jin Nuo Agricultural Technology Co., Ltd., Zhangzhou, Fujian　363902, China

Received Date: 2022-02-19
Rev Recd Date: 2022-06-13

Available Online: 2022-10-05

Publish Date: 2022-08-28

Abstract

Abstract

Objective Biological characteristics of Colletotrichum destructivum that infects Echeveria Perle von Nürnberg and in vitro toxicity of 6 fungicides on the pathogen were studied for the disease control. Method Effects of temperature, pH, photoperiods, carbon, and nitrogen on the growth and 6 fungicides on their legality on C. destructivum were determined by an in vitro culture method. Result The optimum growth conditions for C. destructivum were 30 ℃ at pH 8 on medium using starch for carbon and yeast for nitrogen resources. Photoperiods did not significant affect the mycelial growth. The 6 selected fungicides exhibited varying degrees of efficacy against C. destructivum. The EC₅₀ of fludioxonil at 0.023 6 mg·L⁻¹ was the most potent of them. It was followed by prochloraz at 0.030 6 mg·L⁻¹, pyraclostrobin at 0.048 7 mg·L⁻¹, thiophanate-methyl at 0.152 6 mg·L⁻¹, difenoconazole at 0.195 5 mg·L⁻¹, and carbendazim at 0.219 9 mg·L⁻¹. Conclusion The growth of C. destructivum was affected by temperature, pH, carbon, and nitrogen and inhibited by fludioxonil, prochloraz, and pyraclostrobin.
- Echeveria Perle von Nürnberg,
- Colletotrichum destructivum,
- biological characteristics,
- fungicides,
- toxicity determination

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References(16)

References

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