Efektivitas Serbuk Daun Mindi (Melia azedarach L.) dan Daun Pepaya (Carica papaya L.) untuk Mengendalikan Hama Gudang Sitophilus oryzae L. pada Beras Ketan Putih

Abstract

from the previous year due to post-harvest damage. One of the causes of post harvest damage is Sitophilus oryzae L. White glutinous rice is susceptible to S. oryzae. S. oryzae control is generally using chemical insecticides, which have negative impacts. Botanical insecticide is the alternative to control S. oryzae. Chinaberry (Melia azedarach L.) and papaya leaves (Carica papaya L.) are potential as insecticides. Chinaberry leaves contain β-caryophyllene that can inhibit acetylcholinesterase enzyme. Papaya leaves contain linalool which can inhibit α-amylase enzyme. The research was conducted at the Pest Laboratory, Jember University on May 2025. The treatments were A (control), B (10 grams of chinaberry leaf powder), C (10 grams of papaya leaf powder), D (2.5 grams of chinaberry leaf powder and 7.5 grams of papaya leaf powder), E (5 grams of chinaberry leaf powder and 5 grams of papaya leaf powder), and F (7.5 grams of chinaberry leaf powder and 2.5 grams of papaya leaf powder). The results showed that chinaberry leaf powder and papaya leaf powder affected the mortality and repellency of S. oryzae. The highest mortality was found in the treatment of 5 grams of chinaberry leaf powder and 5 grams of papaya leaf powder at 46.25%. The highest repellency was found in the treatment of 10 grams of chinaberry leaf powder at 35%. The combination of chinaberry leaf powder and papaya leaf was antagonistic at a ratio 1:3, and additive at a ratio 1:1 and 3:1.