Canker diseases caused by Neoscytalidium dimidiatum are a serious threat for dragon fruit production. Comprehensive and environmentally friendly control efforts are needed to reduce yield losses due to this disease. Cottonwood (Ceiba pentandra) is one of the plants that contain complex phytochemicals that can control phyto-pathogens. This study aimed to examine the potential of secondary metabolites produced from the leaves and bark of the C. pentandara as botanical fungicides. Parts of dragon fruit that are attacked by canker are isolated on Potatoes Dextrose Agar media. Observation of conidia and fungal spores using a binocular microscope with a magnification of 100×. The hyphal form of the N. dimidiatum is rectangular and clear. As botanical fungicides, the leaves and the bark of the C. pentandara are dried for 14 days. The extract solution then analyzed for it’s secondary metabolites. The results of the qualitative analysis showed that each leaf extract and bark (+) compound of flavonoids, alkaloids, tannins, and saponins. The quantitative results of secondary metabolites detected 304.3 mg.kg-1, Flavonoids and Tannins of 1.6 mg.kg-1. Secondary metabolites obtained were tested on the fungus N. dimidiatum with inhibitory parameters in vitro and in vivo. This study followed a factorial completely randomized design consisting of concentration factors and types of extract parts. The data obtained were then analyzed by ANOVA and significant treatments were further tested by Duncan Multiple Range Test (DMRT) at α = 5%. The combination treatment with a concentration of 40 mg ml-1 is more effective in controlling canker in indicators of inhibitory, the extent of the attack, and intensity of disease severity.

Kendala yang dihadapi oleh Kelompok Tani Jaya II adalah pada bidang budidaya tanaman serta sediaan input organik. Tujuan dilakukan pengabdian ini adalah untuk membantu Kelompok Tani Jaya II dalam mengembangkan pertanian organik dan memproduksi input organik berupa pupuk organik cair dan pestisida organik. Pengabdian ini dilakukan di Desa Rowosari, Kecamatan Sumberjambe, Kabupaten Jember pada 13 Maret-31 Agustus 2019. Metode pelaksanaan yang dilakukan terdiri dari dua tahapan yaitu 1) pelatihan budidaya organik melalui focus group discussion (FGD), 2) pendampingan produksi pupuk organik cair dan pestisida organik. Hasil pengabdian kepada masyarakat yang diperoleh adalah petani mampu memahami budidaya secara organik mulai dari on farm hingga off farm. Petani telah mampu memproduksi pupuk organik cair dan pestisida organik masing-masing dengan volume 250 liter pada tahap 1. Selain itu petani mengetahui teknik aplikasi yang benar sesuai SNI 6729-2016. Harapan dari anggota Kelompok Tani Jaya II ke depan adalah untuk menambah produk organik yang lain yaitu hortikultura organik dan kopi organik.

Bedadung is one of the biggest river in Jember, East Java Indonesia. The typology of agricultural upstream of watershed is needed as conservation on the management of natural resources. The activity of intensive agricultural give the influence significant to decrease environmental quality. The behaviour of farmer use the fertilizer according to intensive make the problems on the soil and water. The aim is understanding the farmer behaviour on using fertilizer and to give recommend fertilizer application as to be truly on it. This method was conducted rapid rural appraisal (RRA) with the complete questionnaire for to understand about the behaviour of farmer. There are many steps was did (1) mapping location for taking the sample respondent based on water flow, (2) selected respondent did random sampling, (3) collecting data was cluster analyzed to appropriate the application fertilizer, (4) making a recommend to type conservation for the keep our environment dan conservation of natural resources. Based on the type spread the intensive fertilizer is used of farmer from Urea=60.62.42 kg/ha, Kaltim=54.03 kg/ha, Ponska=47.38 kg/ha, and KCl=27.33 kg/ha. The fertilizer is used the farmer was covered from the rule which is decided.

Root-knot nematodes (Meloidogyne spp.) are considered as one of the main limiting factors in crop production systems. Currently, several eco-friendly root-knot nematodes control technologies have been developed, one of which is biofumigants. The purpose of this study was to determine the effectiveness of biofumigants from Brassicaceae and Non-Brassicaceae to control root-knot nematodes. The study was conducted using a one-factor Completely Randomized Design (CRD) with 5 treatments. The results showed that the application of biofumigants from both brassicaceae and non-brassicaceae had no significant effect on the height and number of leaves of tomato. The effectiveness of cabbage biofumigant suppressing the population of RKN in this study was 69.5% compared to control (untreatment). While the treatment of sorghum biofumigant was the better treatment as a biofumigant plant from Non-Brassicaceae with an effectiveness level of suppressing the population of RKN was 55.8% compared to control. While the effectiveness level of suppressing the population of RKN biofumigant tagetes was 36.6% compared to control.

No abstract