Effect of extraction from some parts of Mengkudu (Morinda citrifolia) to suppress anthracnose disease on chili (Capsicum annuum L). The research was conducted to study the effect of extract from some parts of Mengkudu on the growth of anthracnose disease on chilli (Capsicum annuum L).  Some extraction of mengkudu parts such as from leaves, flowers and fruits and propineb fungicide were used in this research. Spore suspension of Colletotrichum capsici (108 spore/ml) used to inoculate chili plant one week before extraction of mengkudu (33 day after planting) was applicated. The result showed that application of leaf and flower extraction were effective to suppress disease incidence and severity, but fruit extraction was not effective.  However, leaf and flower extraction did not significantly differ with propineb fungicide.

Penelitian ini bertujuan untuk mengetahui pengaruh penambahan pupuk KCl dan ZincMicro pada tanaman ubikayu (Manihot esculenta Crantz) terhadap keparahan penyakit bercak daun coklat (Cercospora henningsii), keterjadian penyakit busuk umbi.  Penelitian ini dilakukan mulai bulan April 2018 hingga Februari 2019 di Desa Sukanegara, Kecamatan Tanjung Bintang, Kabupaten Lampung Selatan dan di Laboratorium Bioteknologi, Fakultas Pertanaian, Universitas Lampung.  Rancangan percobaan yang digunakan adalah Rancangan Tersarang (ulangan tersarang dalam perlakuan) yang terdiri dari 4 perlakuan yaitu A. dosis sesuai kebiasaan petani (200 kg KCl ha-1), B. peningkatan dosis KCl menjadi 300 kg KCl ha-1, C. A + penambahan 20 kg ZincMicro ha-1, dan D. B + penambahan 20 kg ZincMicro ha-1.  Hasil penelitian menunjukkan bahwa aplikasi pupuk KCl dengan penambahan ZincMicro mampu menekan keparahan penyakit bercak daun coklat (Cercospora henningsii). Penambahan pupuk KCl dan ZincMicro tidak mampu menekankan keterjadian penyakit busuk umbi.

Aims: The objective of this research was to find out the influence of papaya leaf extract to the in-vitro growth of Colletotrichum gloeosporioides and in-vivo anthracnose disease occurrence at papaya fruit. Methodology: This research used completely randomized design with seven treatments and four replications. Obtained data were analyzed by using analysis of variance and mean scores were compared and tested with least significance difference (LSD) at 5% and polynomial test at 5%. Results: The research result showed the significant influence of papaya leaf extract and synthetic fungicide in inhibiting the growth of Colletotrichum gloeosporioides colony and the disease occurrence at papaya fruit. The polynomial test result of papaya leaf extract showed linier pattern of C. Gloeosporioides colony diameter and disease course progression. Conclusion: The papaya leaf extract inhibited C. Gloeosporioides colony growth at 2 up to 7 days after inoculation, but it did not inhibit spore germination and its density. The papaya leaf extract also inhibit the disease occurrence at 5 and 6 days after application.

Influence of Aglaia odorata L. leaf extract on in vitro growth of chilli antrachnose fungi (Colletotrichum capsici). Pacar cina (Aglaia odorata L.) is known as one of the potential herbs as fungicides. The objective of this study was to determine the effectiveness of various leaf extract fractions of pacar cina as a fungicide to suppress the in vitro growth of C. capsici, the causal agent of anthracnose disease on chili. This study consisted of two sub-experiments. The first experiment consisted of 12 treatments: leaf extract fractions with distilled water solvent, leaf extract fractions with ethanol solvent with a concentration of 10, 20, 30, 40, 50, 60, 70, 80 and 90%, propineb 0.2 % (synthetic fungicides) and control (without fungicide). The second experiment consisted of 12 treatments: leaf extract fractions with distilled water solvent, leaf extract fractions with the solvent of n-hexane at a concentration of 10, 20, 30, 40, 50, 60, 70, 80 and 90%, propineb 2% (synthetic fungicides), and control (without fungicides). The treatmentswerearranged by completely randomized design (CRD) with three replications. Variables measured in this experiment were colony diameter and density of spores of C. capsici. Data were analyzed by analysis of variance (ANOVA) and differences between the mean values was tested by Duncan Multiple Range Test (DMRT) with the level of 5% significant different. Additionally, leaf extract that effectively inhibited the growth of C. capsici was the fraction of the leaf extract with 80% ethanol solvent and 10%, 60%, and 90% n-hexanesolvent. The result showed that the leaf extract fraction of pacar cina was potentially used as fungicide to inhibit the growth of C. capsici.Key words: Aglaia odorata L., anthracnose, Capsicum annuum L., Colletotrichum capsici, growth inhibition ABSTRAK Pengaruh fraksi ekstrak daun pacar cina (Aglaia odorata L.) terhadap penghambatan pertumbuhan Colletotrichum capsici penyebab penyakit antraknosa pada cabai (Capsicum annuum L.) secara in vitro. Pacar cina merupakan salah satu tumbuhan yang berpotensi sebagai fungisida nabati. Penelitian ini bertujuan untuk mengetahui efektivitas berbagai fraksi ekstrak daun pacar cina sebagai fungisida nabati dalam menekan pertumbuhan C. capsici penyebab penyakit antraknosa pada cabai secara in vitro. Penelitian terdiri dari dua sub percobaan. Percobaan pertama terdiri dari 12 perlakuan yaitu, ekstrak daun pacar cina dari fraksi pelarut aquades, pelarut alkohol dengan konsentrasi 10, 20, 30, 40, 50, 60, 70, 80, dan 90%, propineb (fungisida sintetik) dan kontrol (tanpa fungisida). Percobaan kedua terdiri dari 12 perlakuan yaitu ekstrak daun pacar cina dari fraksi pelarut aquades, pelarut n-hexana dengan konsentrasi 10%, 20%, 30, 40%, 50%, 60%, 70%, 80%, dan 90%, fungisida propineb, dan kontrol. Perlakuan dalam percobaan disusun dalam Rancangan Acak Lengkap (RAL) dengan tiga ulangan. Peubah yang diamati adalah pertumbuhan diameter koloni dan kerapatan spora C. capsici. Data yang diperoleh dianalisis dengan sidik ragam (Anov...