UJI EFEKTIVITAS EKSTRAK DAUN MIMBA (azadirachta indica Juss) TERHADAP MORTALITAS ULAT GRAYAK (Spodoptera litura) SEBAGAI SUMBER BELAJAR BIOLOGI

Farmers rely heavily on the use of synthetic chemical pesticides. Unwise use of synthetic insecticides can cause adverse side effects, as well as the occurrence of pest resistance, resurgence and environmental pollution. One of the plants that can be used as organic insecticide is the Mimba leaf. Many Mimba leaves contain active ingredients of azadiraktin, Salanin, Meliantriol and Nimbin. Mimba leaves can be an alternative to organic pesticide making materials. The study aims to determine the effectiveness of Mimba leaf extract (Azadirachta indica Juss) against the mortality of Caterpillar Grayak (Spodoptera Litura) and its utilization as a source of learning biology. This type of research is True experimental research. This research sample is the larvae of Spodoptera Litura. The sampling techniques used are simple random sampling. This research was conducted in laboratory of Muhammadiyah Malang University. Research was conducted on 13-18 may 2019. The results of the research on the effectiveness of Mimba leaf extract (Azadirachta indica Juss.) to the mortality of Worm Grayak (Spodoptera Litura) showed significantly there was an influence of Mimba leaf extract (Azadirachta indica Juss) against the morphology of the caterpillar Grayak (Spodoptera Litura). Centrality which has the highest level of Grayak (Spodoptera Litura) Caterpillar mortality is at a concentration of 25%. The utilization of research results is used as a learning source of biology high school grade X IPA material "environment/climate change and recycling of waste" basic competency 4.10 namely solving environmental problems by making product design waste recycling and efforts Environmental conservation