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Setiaji Heri Saputro
Fakultas Kehutanan Institut Pertanian Stiper Yogyakarta
Agriculture, Biological Sciences & Forestry Environmental Science

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Pengendalian Serangan Hama Helopeltis bradyi pada Tanaman Eukaliptus dengan Berbagai Jenis Bahan Aktif Insektisida di Laboratorium Suhandi; Setiaji Heri Saputro; Surodjo Taat Andayani
Jurnal Wana Tropika Vol 16 No 1 (2026): MEI
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v16i1.2555

Abstract

The damage to eucalyptus plants caused by one species of Helopeltis, namely Helopeltis bradyi, is one of the main factors hindering the growth process and causing the death of eucalyptus plants in the Industrial Forest area at PT. Toba Pulp Lestari. Chemical control using insecticides with specific active ingredients is one way to prevent and reduce damage to eucalyptus plants caused by these pests. This study was conducted to determine the effect of various types of insecticide active ingredients on the control of Helopeltis bradyi pests. This study used a Randomized Completely Block Design (RCBD) with in-vivo laboratory testing using one treatment factor that is different types of insecticides with active ingredients consisting of five levels: control, insecticides with the active ingredients alfa-cypermethrin, buprofezin, dimehipo, and nitenpyram. The parameters observed were mortality rate (pest death) and severity of plant shoot attack with an observation period of 3 days. The data obtained were analyzed using analysis of variance and Duncan's Multiple Range Test (DMRT) to test for significant differences between each treatment. Based on the results of the study, it was found that the use of different types of insecticide active ingredients had an effect on the mortality rate (pest death) and severity on plant shoots by the Helopeltis bradyi pest. The insecticide active ingredients Nitenpyram and Alpha-cypermethrin showed the highest mortality rates and were able to significantly reduce the severity of damage to plant shoots by the Helopeltis bradyi pest.
Penjarangan Awal Tanaman Sengon Jarak Tanam 2m X 2m Agroforestry Sederhana di Widodomartani Ngemplak Sleman Yogyakarta Agus Prijono; Rawana; Setiaji Heri Saputro
Jurnal Wana Tropika Vol 15 No 2 (2025): November
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v15i2.2344

Abstract

The Widodomartani community cultivates some of their land for forest plants, generally sengon (Falcataria moluccana) is liked community because fast growing species and harvested quickly. Generally, the planting pattern used is simple agroforestry, with a planting distance of 2m x 2m. This research aims to determine the growth using agroforestry pattern ,time the first thinning and  their plant components  . The growth data taken is in the form of height, diameter and plant components. The growth data obtained was t tested. The results research t tested showed that agroforestry pattern is better than monoculture to 3 aged for average height and average diameter before 3 aged but at 3 aged not significant so this is the right time for the first thinning so that when harvesting the results are optimal. The plant components first year include sengon with intercropping of cassava, chili peppers, blue taro, tomatoes, corn, papaya  and after first year sengon, blue taro, papaya. The disturbance found was tumor rust caused by Uromycladium tepperianum.
Pengendalian Serangan Hama Helopeltis bradyi pada Tanaman Eukaliptus dengan Berbagai Jenis Bahan Aktif Insektisida di Laboratorium Suhandi; Setiaji Heri Saputro; Surodjo Taat Andayani
Jurnal Wana Tropika Vol 16 No 1 (2026): MEI
Publisher : Fakultas Kehutanan Institut Pertanian STIPER Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/jwt.v16i1.2555

Abstract

The damage to eucalyptus plants caused by one species of Helopeltis, namely Helopeltis bradyi, is one of the main factors hindering the growth process and causing the death of eucalyptus plants in the Industrial Forest area at PT. Toba Pulp Lestari. Chemical control using insecticides with specific active ingredients is one way to prevent and reduce damage to eucalyptus plants caused by these pests. This study was conducted to determine the effect of various types of insecticide active ingredients on the control of Helopeltis bradyi pests. This study used a Randomized Completely Block Design (RCBD) with in-vivo laboratory testing using one treatment factor that is different types of insecticides with active ingredients consisting of five levels: control, insecticides with the active ingredients alfa-cypermethrin, buprofezin, dimehipo, and nitenpyram. The parameters observed were mortality rate (pest death) and severity of plant shoot attack with an observation period of 3 days. The data obtained were analyzed using analysis of variance and Duncan's Multiple Range Test (DMRT) to test for significant differences between each treatment. Based on the results of the study, it was found that the use of different types of insecticide active ingredients had an effect on the mortality rate (pest death) and severity on plant shoots by the Helopeltis bradyi pest. The insecticide active ingredients Nitenpyram and Alpha-cypermethrin showed the highest mortality rates and were able to significantly reduce the severity of damage to plant shoots by the Helopeltis bradyi pest.
Co-Authors Agus Prijono Rawana Rawana Suhandi Surodjo Taat Andayani