Pengendalian penyakit busuk buah kakao menggunakan Trichoderma dan pupuk Kalium

AbstrakKerugian akibat serangan penyakit busuk buah kakao (BBK) mencapai 40-100%, produktivitas hanya 669,9 kg/ha/tahun. Upaya pengendalian dapat dilakukan melalui penggunaan cendawan antagonis Trichoderma dan peningkatan dosis pupuk Kalium. Penelitian bertujuan menguji efektivitas viride K dalam mengendalikan BBK. pada Januari sampai Desember 2019 di kebun rakyat (Klon CSA 6) berumur 10 tahun dengan tanaman pelindung Gliricidia sp. Desa Suka Bandung, Kecamatan Natar, Kabupaten Lampung Selatan. menggunakan rancangan acak kelompok 12 perlakuan 3 ulangan. Macam yaitu fungisida viride, kimia (mancozeb), KCl 100 g/phn, 110 125 + cara petani (tanpa 50 g/phn). Hasil penelitian menunjukkan bahwa intensitas terendah (7,79%), daya hambat tertinggi (68,84%), produksi biji kering 1.327,86 kg/ha/tahun (166,86%) diperoleh g/pohon. Efektivitas tidak berbeda dibandingkan BBK, makin tinggi K, pula terhadap penyakit.Kata Kunci: Busuk kakao, pengendalian, kalium, virideAbstractLosses due to cacao pod rot disease is varied from 40 100% leaving the productivity into 669.9 kg per ha year. To control disease, and potassium (K) fertilizer are used. The study aimed test effectiveness of in controlling cocoa disease. was conducted January December South Regency, by using clone 6 aged years as plant material. used a randomized block design with treatments replications. treatment were fungicide, chemical fungicide g plant-1, farmer's method (no plant-1). results showed that lowest attack intensity (7.79%), highest inhibition (68.84%), production reached 1,327.86 haper year (166.86%) obtained combination plant-1. on not different compared fungicides, higher applied dose fertilizer, against disease.Keywords: Cocoa rot, control,