UJI KONSENTRASI EKSTRAK TEPUNG DAUN SIRSAK (Annona muricata L) UNTUK MENGENDALIKAN HAMA PENGGEREK BUAH KAKAO (Conopomorpha cramerella SNELLEN.) PADA TANAMAN KAKAO (Theobroma cacao L) DI PADANG PARIAMAN

Rusli Rustam,Revi Hariyati

doi:10.33512/jur.agroekotetek.v13i1.12160

Abstract

Cocoa ( Theobroma cacao L.) is a plantation crop that has an important role in the national economy. Conopomorpha cramerella Snellen is a pest that causes a decrease in cocoa production in the field. The recommended control is using botanical insecticides using soursop leaves ( Annona muricata L). This study aimed to obtain best concentration of soursop leaf flour extract ( A. muricata L) to control the attack of cocoa pod borer ( C. cramerella Snellen) in the field. The research was conducted in the garden of residents of Nan Sabaris District, Padang Pariaman Regency, from July to October 2019. The research was carried out experimentally using a completely randomized design (CRD) with 6 treatments and 4 replications. Treatment of the concentration of soursop leaf powder extract given in each experimental unit was 0 gl -1 water, 20 gl -1 water, 40 gl -1 water, 60 gl -1 water, 80 gl -1 water and 100 gl -1 water. The results showed that soursop was able in controlling CPB ( C. cramerella ) pests at a concentration of 100 gl -1 water which reduced the percentage of affected fruit to 10% with the lowest fruit damage intensity, namely 12.48%, the largest fruit diameter was 18.15 cm, with the smallest larval population of 0.75 tails, and the maximum dry weight of seeds reaching 150.75 g.

Highlights

PENDAHULUAN Kakao (Theobroma cacao L.) merupakan tanaman perkebunan yang mempunyai peranan penting bagi perekonomian nasional khususnya dalam penyediaan lapangan kerja, sumber pendapatan dan devisa negara
The results showed that soursop was able in controlling CPB (C. cramerella) pests at a concentration of 100 gl-1 water which reduced the percentage of affected fruit to 10% with the lowest fruit damage intensity, namely 12.48%, the largest fruit diameter was 18.15 cm, with the smallest larval population of 0.75 tails, and the maximum dry weight of seeds reaching 150.75 g
Aktivitas anti makan ekstrak daun sirsak (Annona muricata L) dan pengaruhnya terhadap indeks nutrisi serta terhadap struktur membrane peritrofik larva instar v Spodoptera litura F

Summary

Hal ini sesuai dengan pendapat Nuriadi dan

Rata-rata berat biji kering kakao akibat serangan hama PBK (C. cramerella) setelah pemberian beberapa konsentrasi ekstrak tepung daun sirsak (Annona muricata L.). Tabel 6 menunjukkan bahwa perlakuan beberapa konsentrasi ekstrak tepung daun sirsak memberikan pengaruh yang berbeda nyata terhadap berat biji kering kakao (Theobroma cacao L) akibat serangan hama PBK (C. cramerella) dengan kisaran 102,75 g-150,75 g. Perlakuan ekstrak tepung daun sirsak dengan konsentrasi 0 g.l-1 air menunjukkan berat biji kering yaitu 89,75 g. Perlakuan ekstrak tepung daun sirsak 100 g.l-1 air menunjukkan berat biji kering yaitu 150,75 g dan berbeda nyata terhadap perlakuan 20 g.l-1 air, 40 g.l-1 air, 60 g.l-1 air dan 80 g.l-1 air dengan berat biji kering masing-masing mencapai 102,75 g, 114,25 g, 119,75 g dan 130,25 g. 10% dengan intensitas kerusakan buah terendah yaitu 12,48%, diameter buah terbesar dihasilkan mencapai 18,15 cm dengan populasi larva terkecil sebanyak 0,75 ekor, dan berat kering biji yang maksimal mencapai 150,75 g

Proteksi Tanaman Institut Pertanian

Findings

Hama Thrips pada Tanaman