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

RESEARCH ARTICLE

Journal of Oil Palm Research Vol. 23 (2) August 2011, p. 1036-1039

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

MOHD NAJIB Ahmad* ; SITI RAMLAH Ahmad Ali* ; MOHAMED MAZMIRA Mohd Masri* ; RAZMAH Ghazali* ; MOHD BASRI Wahid*

13 November 202117 November 2021

ABSTRACT

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 and nettle caterpillars.

KEYWORDS: freshwater fish, Tilapia nilotica, Bacillus thuringiensis (Bt), Terakil-1®, Teracon-1®

* Malaysian Palm Oil Board,
P. O. Box 10620, 50720 Kuala Lumpur, Malaysia.
E-mail: mnajib@mpob.gov.my