PENGARUH EKSTRAK DAUN KENIKIR (Cosmos caudatus Kunth.) TERHADAP MORTALITAS KUTU BERAS (Sitophilus oryzae L.)

Abstract

Rice louse ( Sitophilus oryzae L.) is kind of insect wich damage agricultural crop. The rice damage can prevent with nature pesticide of marble leaf extract ( Cosmos caudatus Kunth.). This research used experiment method with Completely Randomized Design (CRD) with 5 treatments and 5 replications. The result of this research proof that: 1) Giving marble leaf extract in such concentrations (20 gram marble leaf extract/100gram rice, 40 gram marble leaf extract/100 gram rice, 60 gram marble leaf extract/100 gram rice, and 80 gram marble leaf extract/100 gram rice) show real influence than rice louse mortality ( Sitophilus oryzae L.) which show significant result is 0,000 < 0,005. 2) The result of this research is P 4 extract doses (80 gram marble leaf extract/100 gram rice) show increasing higher to the rice louse mortality, So giving marble leave extract show real influence to rice louse mortality. Key words: marble leaf extract concentrations , mortality level, rice louse