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Loss of Cane and Sugar Yield due to Damage by Tetramoera schistaceana (Snellen) and Chilo sacchariphagus (Bojer) in the Cane-Growing Regions of China

Loss of Cane and Sugar Yield due to Damage by Tetramoera schistaceana (Snellen) and Chilo sacchariphagus (Bojer) in the Cane-Growing Regions of China

Wen-Feng Li, Xiao-Yan Wang, Ying-Kun Huang*, Rong-Yue Zhang, Jiong Yin, Zhi-Ming Luoand Hong-Li Shan

Yunnan Key Laboratory of Sugarcane Genetic Improvement, Sugarcane Research Institute, Yunnan Academy of Agricultural Sciences, Kaiyuan 661699, China

*      Corresponding author: huangyk64@163.com

ABSTRACT

Loss of cane and sugar yield caused by the combined occurrence of Tetramoera schistaceana (Snellen) and Chilo sacchariphagus (Bojer) were measured in pesticide–treated and untreated areas during 2014-2016. The results indicated that the in untreated areas, percent dead-heart was 8.30% - 58.83%, the percent stalk injured was 26.73% - 96.67%, the percent internodes bored was 4.40% - 25.87%, and the effective stem number was reduced by 4440-21900 stalk/ha. Measured yield and sugar yield loss results showed cane yield was reduced by 5.32-44.53 T/ha; the yield loss percent was5.92% - 44.53%; the sugarcane juice yield decreased by 1.73% - 3.28%; the sucrose content reduced by 0.33% - 5.63%; sugarcane brix dropped by 0.70-6.36 BX; the fibre and reducing sugar increased by 0.22% - 0.98% and 0.11%-1.58%, respectively. It was confirmed that in majority of sugarcane fields in Yunnan, China, T. schistaceana and C. sacchariphagus cause severe reduction of sugarcane and sugar yield.
 

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Pakistan Journal of Zoology

October

Vol. 50, Iss. 5, Pages 1601-1998

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