Daya Insektisida Rimpang Kencur (Kaemppferia galag L.), Cengkeh (Syzygium aromaticum), Kulit jeruk Purut (Citrus hystrix) dan Daun Sirih (Piper betle linn) Terhadap Kutu Beras (Sitophilus oryzae)

Abstract

Beras sering mendapatkan gangguan dari hama kutu beras yaitu Sitophilus oryzae yang dapat mengurangi kualitas dan kuantitas dari beras. Hama Sitophilus oryzae tergolong sebagai hama primer yang mampu menyerang beras. Penelitian ini bertujuan untuk mengetahui daya bunuh insektisida nabati kencur, cengkeh, kulit jeruk purut dan daun sirih terhadap hama Sitophilus oryzae. Metode penelitian ini menggunakan Rancangan Acak Lengkap non faktorial yang terdiri dari 13 taraf perlakuan, yaitu : P0 = Tanpa Perlakuan, PRK1 = 10 gram rimpang kencur, PRK2 = 20 gram rimpang kencur, PRK3 = 30 gram rimpang kencur, PBC1 = 10 gram bunga cengkeh, PBC2 = 20 gram bunga cengkeh, PBC3 = 30 gram bunga cengkeh, PKJ1 = 10 gram kulit jeruk purut, PKJ2 = 20 gram kulit jeruk purut, PKJ3 = 30 gram kulit jeruk purut, PDS1 = 10 gram daun sirih, PDS2 = 20 gram daun sirih and PDS3 = 30 gram daun sirih. Hasil penelitian menunjukkan insektisida nabati berpengaruh sangat nyata dalam mengendalikan hama Sitophilus oryzae. Pestisida nabati dari Bunga cengkeh merupakan perlakuan yang terbaik dalam mengendalikan hama Sitophilus oryzae dengan persentase mortalitas mencapai 100%. Pestisida nabati bunga cengkeh dengan dosis 30 g merupakan yang paling efektif dalam mengendalikan hama kutu beras (Sitophilus oryzae). Nilai LD50 dari pestisida nabati bunga cengkeh adalah 12,83 g. Nilai LT50 dari pestisida nabati bunga cengkeh adalah 23,86 hari. Perlakuan PBC3 (bunga cengkeh dosis 30 g) merupakan perlakuan yang terbaik terhadap mortalitas hama Sitophilus oryzae. Rice is often gets interference from the rice bug, namely Sitophilus oryzae that reduce the quality and quantity of rice. Sitophilus oryzae are classified as primary pests that attack rice. This study aims to determine inhibition properties of insecticides kencur, cloves, lime peel and betel leaf against Sitophilus oryzae. This research method used a non-factorial Completely Randomized Design consisting of 13 treatment levels, namely: P0 = No Treatment, PRK1 = 10 gram aromatic ginger, PRK2 = 20 gram aromatic ginger, PRK3 = 30 gram aromatic ginger, PBC1 = 10 gram clove flower, PBC2 = 20 gram clove flower, PBC3 = 30 gram clove flower, PKJ1 = 10 gram lime peel, PKJ2 = 20 gram lime peel, PKJ3 = 30 gram lime peel, PDS1 = 10 gram betel leaf, PDS2 = 20 gram betel leaf and PDS3 = 30 gram betel leaf. The results showed that organic insecticides had a very significant effect on controlling Sitophilus oryzae pests. Pesticide derivated from clove flower from clove flowers are the best treatment for controlling Sitophilus oryzae with a mortality percentage of 100%. Clove flower vegetable pesticide with a dose of 30 g was the most effective in controlling Sitophilus oryzae. The LD50 value of the clove flower vegetable pesticide was 12.83 g. The LT50 value of the clove flower vegetable pesticide was 23.86 days. PBC3 treatment (clove flower dose of 30 g) was the best treatment for the mortality of the pest Sitophilus oryzae.