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[Occurrence and control of Cercospora leaf spot on Lonicera macrathoides]
Ying Zhang1, Long-Yun Li, Kun-Kun Tan
1Chongqing Academy of Chinese Materia Medica, Chongqing Research Center of Techniques and Engineering for Chinese Materia Medica Fine Variety Breeding and Evaluation, Chongqing 400065, China.
Objective:
To study the occurrence of Cercospora leaf spot of Lonicera macrathoides and fungicides control method, so as to provide scientific basis for its integrated pests management (IPM).
Method:
The field investigation and the field controlling trial were carried out for the research.
Result:
Cercospora leaf spot was caused by C. rhamni. There was obvious relationship between the damage rate and the altitude, soil organic matter, available K, available P as well as variety. The controlling effect of 10% difenoconazole WG was the highest. 50% Thiram WP, 70% Mancozeb WP also had well controlling effect.
Conclusion:
Cercospora leaf spot of L. macrathoides could be controlled by suitability agricultural and chemical controls.
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