Keywords
insecticides
haemolymph proteins
induced changes
How to Cite
Abstract
Nine insecticides were evaluated for their toxicity (LC50) and 50% lethal times (LT50) against 3rd instar Spodoptera frugiperda larvae. Two groups of insecticides were identified based on LC50 and LT50 values. Bright® 30EC was the most toxic (LC50 = 0.0006 μg/g) while Fastac® 5EC was the least toxic (LC50 = 0.6046μg/g) among all the insecticides tested. Haemolymph protein changes from insecticide treated larvae were also determined. The total haemolymph protein content in insecticide treated larvae was generally lower than the control. Additionally, the number of protein bands present in electrophoresis gels of insecticide treated larvae was also lower than that of untreated larvae. The implications of these results are discussed.
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