Laboratory Bioassay and Field Evaluation of Copper Gluconate as a New Potential Bactericide Against Xanthomonas campestris pv. citri (Hasse) Dye

Yuhong Zhang, Runqian Mao, Jihuan Zheng, Yingfang Xiao, Mingli Tang and Jincheng Quan

Journal of Agricultural Science, 2013, vol. 5, issue 12, 23

Abstract: Laboratory bioassays and field trials were carried out to study the toxicity and effectiveness of copper gluconate (CG) against Xanthomonas campestris pv. citri (Hasse) in comparison with copper hydroxide (CH) and DT (copper succinate + copper glutarate + copper adipate). The results of laboratory experiment indicated that CG recorded significant control against the bacteria at the concentration of 40 g/L or more. In particular, CG had a similar result to those of CH at the concentration of 100 g/L. Meanwhile, field experiment confirmed that CG had a similar efficacy compared with those of CH, DT, and Mancozeb. It was suggested that CG (1- 1000 dilutions) could be used as effective bactericide for managing citrus canker.

Date: 2013
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