ECOTOXICITY OF Bacillus thuringiensis, TERAKIL-1 ® AND TERACON-1 ® AGAINST FRESHWATER FISH, Tilapia nilotica

Ecotoxicity test was conducted to study the effect of Terakil-1 ® and Teracon-1 ® against freshwater fish Tilapia nilotica by exposing it to various concentrations of the sample. Terakil-1 ® and Teracon-1 ® , each led to 30% and 12.5% corrected mortality of freshwater fish, Tilapia nilotica at 128 mg litre -1 at 4 days after treatment (96 hr). The LC50 of two MPOB Bt1 products was 100-1000 mg litre -1 implying that Terakil-1 ® and Teracon-1 ® are practically non-toxic. Terakil-1 ® and Teracon-1 ® are target specific to palm insect pests such as bagworms