Pengujian Larvisida Teknar 1500 S terhadap Larva Nyamuk Anopheles Maculatus di Alihan Sungai

A study to evaluate the efficacy of biological larvicide Teknar 1500 S which contains 1500 SAAU of Baccillus thuringiensis Israeliensis (Bti) serotype H-14 crystal delta endotoxin against Anopheles maculatus larvae was conducted at Kokap district, Kulon Progo Regency in Yogyakarta Province. Three methods of applications were compared, i.e. spraying, using plastic bags and pouring off the larvicide on a small stream. The design of the study was Split Plot design with six replicates. The larval densities were measured one day before application; 1, 8, 14, and 21 days after application. The larvae reduction rates of the three methods of applications were significantly different ( a = 0,01). Spraying produced significantly better results compared to the two other methods