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
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.
To share on other social networks, click on any share button. What are these?
February 2018
Vol. 50, Iss. 1, Pages 1-400
