HUBEI AGRICULTURAL SCIENCES ›› 2022, Vol. 61 ›› Issue (20): 60-63.doi: 10.14088/j.cnki.issn0439-8114.2022.20.011

• Plant Protection • Previous Articles     Next Articles

Field control effects of different insecticide application methods on the borers of ratoon sugarcane

LUO Ya-wei, QIN Zhen-qiang, LI De-wei, LIANG Tian, LI Tao, HUANG Xing, GAO Yi-jing   

  1. Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Sugarcane Research Center, Chinese Academy of Agricultural Sciences, Nanning 530007, China
  • Received:2022-03-07 Online:2022-10-25 Published:2022-11-23

Abstract: In order to clarify the field control effects of different insecticide application methods on ratoon sugarcane borers, the field efficacy test of 30% chlorantraniliprole·thiamethoxam SC on ratoon cane borers with four different application methods including foliar spray, spraying cane stump, applying at soil furrow and drenching irrigation at cane stump were conducted in 2019 and 2020. The results showed that spraying cane stump had better efficacy on controlling sugarcane borers at the seedling and harvest stage of sugarcane, and could increase the number of effective cane stems and the yield of sugarcane. The average yield of sugarcane in two years increased by 29.46% compared with the control without any insecticide. There were significant differences on controlling sugarcane borers of foliar spay and spraying cane stump at seedling stage, while there were no significant differences at harvest stage. The average yield of sugarcane in two years of foliar spay and spraying cane stump increased by 15.58% and 9.08%, respectively, compared with the control without any insecticide. However, there was no significant difference in the yield of sugarcane between the treatment of applying at soil furrow to control borers and the control without any insecticide. According to the actual situation, drenching irrigation at cane stump, foliar spray and spraying cane stump could be used to prevent and control the ratoon sugarcane borers, and the effect of drenching irrigation at cane stump was the best.

Key words: ratoon sugarcane, sugarcane borers, insecticide application methods, control effect

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