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Selasa, 28 Januari 2014

EFEKTIVITAS GRANULA EKSTRAK ETANOL BIJI PEPAYA (Carica papaya L.) TERHADAP MORTALITAS LARVA NYAMUK Aedes aegypti L.

Oleh: Megah Tri Rahayu

Aedes aegypti L. is a vector that cause  Dengue Hemorrhagic Fever disease. Most of People used chemical insecticides to control the mosquito which have negative impacts, it cause resistance vector, so the experts look for another alternative with using biological control such as ethanol extract granules papaya seeds. Papaya seeds have larvasidal activity because it produces secondary metabolites like alkaloids and saponins. Serial concentrations of ethanol extract of papaya seed granules used in this study was 5 ppm, 10 ppm, 100 ppm, 1000 ppm, and 3000 ppm and performed 3 replications. Each treatment used 20 test larvae. Larva used as a test is the final larval instar III and early IV. the data obtained by the Aedes aegypti larvae mortality at 12 hours, 24 hours, 36 hours, and 48 hours. Data analysis using probit analysis. Based on the research and analysis of the data obtained it can be concluded LC50 24 hours and 48 hours was 15.572 ppm and 37.772 ppm. LC90 24 hours and 48 hours was 3.109 ppm and 9.970 ppm. LT50 and LT90 of 33.06 hours and 49.10 hours with concentrations of ethanol extract granules papaya seeds 10 ppm.It can be concluded that extract granules papaya seeds has insectisidal effect on Aedes aegypti larvae mortality.

PENGARUH GRANULA EKSTRAK ETANOL DAUN MINDI (Melia azedarach L.) TERHADAP MORTALITAS LARVA NYAMUK Aedes aegypti L.

Oleh: Alvi Nur Khayyunida

Dengue Hemmorhagic Fever is a disease transmitted through the bite of A. aegypti females containing dengue virus in mosquito body. Today's effort emphasis on the use of chemical insecticides, whereas chemical insecticides can have a negative impact. Based on that problem, one of alternative by biological control using ethanol leaf extract granules chinaberry (Melia azedarach L.). Chinaberry leaves (Melia azedarach L.) were used in the study expressed insecticidal properties due to produce secondary metabolites that triterpenoids and flavonoids. Serial concentrations of ethanol extract of leaves of shade-tree granules used in this study was 5 ppm, 25 ppm, 250 ppm, 2500 ppm, 3000 ppm and performed in 3 replications. Each treatment used 20 test larvae. Larva used as a test is the final larval instar III and early IV. the data obtained by the Aedes aegypti larvae mortality at 12 hours, 24 hours, 36 hours, and 48 hours. Data analysis using probit analysis. Based on the research and analysis of the data obtained it can be concluded LC50 24 hours and 48 hours was 55.652 ppm and 400.209 ppm. LC90 24 hours and 48 hours was 13.103 ppm and 29.910 ppm. LT50 and LT90 of 24.854 hours and 44,590 hours with concentrations of ethanol extract granules mindi leaf 25 ppm. It can be concluded that ethanol leaf extract granules chinaberry (Melia azedarach L.) has insectisidal effect on Aedes aegypti larvae mortality