Evaluation an insecticide Helerate 5 % EC against Sugarcane Shoot Borer complex in the Sugarcane Plantations of Ethiopia

Abstract

Evaluation of Helerate 5 % EC against sugarcane shoot borer was made to generate efficacy data in the sugarcane plantations of Wonji-Shoa and Tendaho. The experiment was laid out in RCBD with four replications. The test insecticide was applied on plant cane and ratoon fields at Tendaho and Wonji-Shoa plantations, respectively. The result indicated that the test insecticide showed better control of sugarcane borer infestations as compared to the untreated check. Moreover, the test insecticide showed no significant variation as compared to standard check (Ethiozinon 60% EC) in all parameters considered. Furthermore, the study indicated that twice application of Helerate 5% EC @ 350 ml/ha and Ethiozinion 60 % EC @ 2 liter/ha showed significantly better control of sugarcane shoot borer complexes both on plant cane and ratoon fields in contrast with once application. Therefore, the plantations should apply Helerate 5 % EC @ 350 ml/ha twice at 11^th and 14^th weeks after planting for plant cane fields. Whereas, for ratoon fields, they should apply twice the test insecticide at 8^th and 11^th weeks after harvest for the control of sugarcane shoot borer complex in the sugarcane plantation of Ethiopia. Lastly, this study clearly revealed that the test insecticide (Helerate 5% EC) as effective as the recently used insecticide Ethiozinion 60 % EC. Since, Ethiozinion 60 % EC had been used by the Sugar Estates for long years now; Helerate 5% EC could be used as good substitute to avoid resistance due to continuous use of the same insecticide redundantly.