Evaluation on Field Control Effect of Chlorantraniliprole Against Sugarcane Termite

Objective The study was carried out to understand the field control effect of chlorantraniliprole against sugarcane termite.

Method The field control effects of two different doses of chlorantraniliprole applied by mixed fertilizer broadcasting method on sugarcane termite were studied in 2018-2019. The plants damaged by sugarcane termite were investigated before harvest (in November), the damaged plants and effective sugarcane stems were investigated and the sugarcane yield was measured when harvested. The control effects on sugarcane termite and the economic benefits were analyzed.

Result There was no significant difference in the damaged plant rates of sugarcane termites treated by chlorantraniliprole 5% with 7.5 kg/hm² and chlorantraniliprole 4% with 7.5 kg/hm², and both significantly lower than that of sugarcane termite treated by imidacloprid 15% with 7.5 kg/hm² at Banmai Village test site, while there was no significant difference in the damaged plant rates of sugarcane termites treated with the three pesticides at Qu'ao Village test site. On the whole, the control effect of chlorantraniliprole 5% with 7.5 kg/hm² on sugarcane termite was better. The damaged plant rate of termite treated by chlorantraniliprole 5% with 7.5 kg/hm² was under 3%, with the field efficacy of over 80%. Compared with the control, the sugarcane yield under treatment of chlorantraniliprole 5% with 7.5 kg/hm² increased to 19.2-31.5 t/hm², and the net income increased to 8 784-15 180 yuan/hm², with obvious increases of yield and income.

Conclusion Chlorantraniliprole 5% (Guizhong no.2) with 7.5 kg/hm² has better control effect on sugarcane termite with significant benefits, which can be used as the pesticide for controlling sugarcane termite in cane areas where this pest seriously damage.