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Journal : Tropical Plantation Journal

Toxicity of Natural Insecticides on Leptocorixa acuta Elisabeth Nanik Kristalisasi; Badiatud Durroh; Endah Puspitojati; Bayu Adirianto; Agus Manto
Tropical Plantation Journal Vol 1, No 2 (2022): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (496.507 KB) | DOI: 10.56125/tpj.v1i2.9

Abstract

The basic concept of organic farming prevents synthetic chemical compounds from using fertilizers, pesticides, and growth regulators. Natural insecticides are alternative pesticides in pest control on plants because they are available around us and have a good impact on the sustainability of the agricultural environment. This study aims to examine the level of toxicity of several alternative insecticides in controlling the walang sangit  (Leptocorixa acuta). The research in the laboratory and greenhouse of Instiper Yogyakarta uses 3 natural ingredients, namely neem leaves, tobacco leaves, and C. Odorata weed leaves at 2 stages of L. acuta on instra 3-4 and adults. Observations were made by looking at pest mortality, attack rate, and yield and analyzed using SPSS 16 software. The results showed that tobacco leaf extract was the most effective source of insecticide, with a mortality rate of up to 90% and damage rates below 9%.
Marketing Analysis of Potato in Batu City Muhammad Khoirul Aziz; Masahid Masahid; Badiatud Durroh
Tropical Plantation Journal Vol 2, No 1 (2023): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v2i1.18

Abstract

Sumberbrantas village is one of the areas located in the highlands which is one of the potential for potato commodity development. The high potential of the region is also supported by the willingness of farmers to cultivate potatoes. The purpose of this study was to determine the marketing channel for potato commodities and the efficiency level of marketing institutions for potato commodities in Sumberbrantas Village, Bumiaji District, Batu City. This study uses the Cluster Random Sampling method. In this study only covers the city of Malang and Batu city. The samples that will be used as respondents in the study are 30 potato farmers, 2 collectors, and 4 retailers. Data analysis used descriptive analysis, marketing margin analysis and Farmer's Share analysis. The results of this study are farmers - collectors - retailers - consumers. The marketing margin value for each potato in this marketing channel is IDR 3,500. The share value or profit share is 90.76% and the cost share is 9.2% so it can be concluded that this marketing channel is logical because the profit share value obtained is greater than the cost share in the marketing channel. The average selling price received by farmers is 9,500/kg. the value of PS or the percentage of farmers' profits is 73.07% of the price at the consumer level, which is Rp. 13,000/kg.