| 【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. |
