Abstract:
In recent years, the usage of environmentally friendly and biodegradable natural
insecticides of plant origin have received and renewed attention as an effective agent
for disease vector control. Thus, this study was carried out to examine the comparison
of effect between herbal and mangrove plant in which the plants were extracted
according to parts and tested against Aedes aegypti larvae. Leaf and stem of
Tinospora tuberculata and Lumnitzera racemosa was extracted using 95% of
Methanol and tested against 3rd instar Ae. aegypti (Diptera: Culicidae) larvae under
laboratory condition. Exposure was done for 24 hours in the concentrations of
0.125mg/ml, 0.25mg/ml, 0.5mg/ml, lmg/ml and 2mg/ml. LC50 values obtained for
crude extract of T. tuberculata stem and leaf were 0.5816 mg/ml and 0.7126 mg/ml
whereas for L.racernosa, LC50 value for stem and leaf were 1.5664 mg/ml and l.7214
mg/ml. There were no significant difference for stem and leaf of both plant. This
study indicated that both plant produce compounds for vector control which are
friendly to the environment
