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Efektivitas Penggunaan Fermentasi Buah Kakao (Theobroma cacao l.) Sebagai Bioherbisida Pada Gulma Patikan Kebo (Euphorbia hirta) Rahman, Royh; Soedijo, Samharinto; Rosa, Helda Orbani
JURNAL PROTEKSI TANAMAN TROPIKA Vol 8 No 1 (2025): Februari 2025
Publisher : www.ulm.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jptt.v8i1.3086

One environmentally friendly alternative for weed control is to utilize cocoa plant waste (Theobroma cacao L). Can be used as a biological herbicide. The aim of this research is the effectiveness of the long fermentation time of bioherbicides from cocoa shells and beans in controlling weeds. This research used a non-factorial Randomized Block Design (RAK), consisting of 4 treatments (K (Control), M1 (7 days), M2 (14 days), M3 (21 days) and M4 (28 days)) with as many repetitions as possible. 3 times. The results of this research show that weed growth can be suppressed with cocoa bioherbicide from observation week 1 to week 3, with the highest poisoning score being 4 (Very severe poisoning; young leaves have an abnormal shape and color until they dry out and fall off until the plant dies). Symptoms of poison caused by biorherbicides include changes in leaf color from green to pale and eventually death.

Efektivitas Penggunaan Fermentasi Buah Kakao (Theobroma cacao l.) Sebagai Bioherbisida Pada Gulma Patikan Kebo (Euphorbia hirta) Rahman, Royh; Soedijo, Samharinto; Rosa, Helda Orbani
JURNAL PROTEKSI TANAMAN TROPIKA Vol 8 No 1 (2025): Februari 2025
Publisher : www.ulm.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jptt.v8i1.3086

One environmentally friendly alternative for weed control is to utilize cocoa plant waste (Theobroma cacao L). Can be used as a biological herbicide. The aim of this research is the effectiveness of the long fermentation time of bioherbicides from cocoa shells and beans in controlling weeds. This research used a non-factorial Randomized Block Design (RAK), consisting of 4 treatments (K (Control), M1 (7 days), M2 (14 days), M3 (21 days) and M4 (28 days)) with as many repetitions as possible. 3 times. The results of this research show that weed growth can be suppressed with cocoa bioherbicide from observation week 1 to week 3, with the highest poisoning score being 4 (Very severe poisoning; young leaves have an abnormal shape and color until they dry out and fall off until the plant dies). Symptoms of poison caused by biorherbicides include changes in leaf color from green to pale and eventually death.

Potensi Dua Macam Pestisida Nabati dengan Perekat Lidah Buaya Untuk Menekan Kerusakan Hama Daun Tanaman Sawi (Brassica juncea L.) Separnawa, Muhammad Nur; Pramudi, Muhammad Indar; Soedijo, Samharinto
JURNAL PROTEKSI TANAMAN TROPIKA Vol 8 No 2 (2025): Vol 8(2): Juni 2025
Publisher : www.ulm.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jptt.v8i2.3224

This research aims to determine the potential of the botanical pesticide papaya leaves and neem leaves treated with aloe vera leaf adhesive and without aloe vera leaf adhesive in controlling leaf pests on mustard greens in the Unlam Faculty of Agriculture Experimental Garden. The design used in this research was a one-factor Completely Randomized Design (CRD) with 5 treatments and 4 replications. Each experimental unit consisted of 4 polybags with 2 mustard plants planted in each polybag. Overall in this study there were 160 mustard plants, treatments consisted of K = Control (water), P1 = Papaya leaf solution + aloe vera leaves, P2 = Neem leaf solution + aloe vera leaves, P3 = Papaya leaf solution without aloe vera leaves, P4 = Neem leaf solution. The results of this study showed that all Botanical pesticide treatments sprayed on mustard greens showed no difference, namely P1 = (42.33%), P2 = (38.82%), P3 = (37.53%), P4 = (36.92%). However, it is significantly different from the control, 47.69%. The lowest leaf pest attack was seen in the neem leaf (P4) 34.92%.

Potensi Dua Macam Pestisida Nabati dengan Perekat Lidah Buaya Untuk Menekan Kerusakan Hama Daun Tanaman Sawi (Brassica juncea L.) Separnawa, Muhammad Nur; Pramudi, Muhammad Indar; Soedijo, Samharinto
JURNAL PROTEKSI TANAMAN TROPIKA Vol 8 No 2 (2025): Vol 8(2): Juni 2025
Publisher : www.ulm.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jptt.v8i2.3224

This research aims to determine the potential of the botanical pesticide papaya leaves and neem leaves treated with aloe vera leaf adhesive and without aloe vera leaf adhesive in controlling leaf pests on mustard greens in the Unlam Faculty of Agriculture Experimental Garden. The design used in this research was a one-factor Completely Randomized Design (CRD) with 5 treatments and 4 replications. Each experimental unit consisted of 4 polybags with 2 mustard plants planted in each polybag. Overall in this study there were 160 mustard plants, treatments consisted of K = Control (water), P1 = Papaya leaf solution + aloe vera leaves, P2 = Neem leaf solution + aloe vera leaves, P3 = Papaya leaf solution without aloe vera leaves, P4 = Neem leaf solution. The results of this study showed that all Botanical pesticide treatments sprayed on mustard greens showed no difference, namely P1 = (42.33%), P2 = (38.82%), P3 = (37.53%), P4 = (36.92%). However, it is significantly different from the control, 47.69%. The lowest leaf pest attack was seen in the neem leaf (P4) 34.92%.

Pengaruh Perbedaan Ketinggian Perangkap Kuning Terhadap Hasil Tangkapan Serangga Pada Pertanaman Cabai (Capsicum annum L.) Rahmatullah, Rahmatullah; Soedijo, Samharinto; Marsuni, Yusriadi
JURNAL PROTEKSI TANAMAN TROPIKA Vol 8 No 3 (2025): Oktober 2025
Publisher : www.ulm.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jptt.v8i3.3515

There are many problems and negative impacts caused by insects on chili plants (Capsicum annum L.), so one alternative environmentally friendly control method is to use insect traps, one of the traps that can be used is the yellow trap. The aim of this research is to find out how effective yellow traps are against pests in red chili plantations. This method uses a completely randomized design (CRD) with one factor consisting of four treatments (T1 30 cm, T2 60 cm, T3 90 cm and T4 120 cm), which was repeated 6 times. The results of this study showed that all yellow trap treatments showed that the treatment in the first to sixth weeks had no real effect on trap setting and tended to decrease the number of catches. It was found that the percentage of insect intensity in the observations showed that the highest percentage figure for the T3 treatment was 3.81%, while the lowest percentage figure for the T1 treatment was 3.28%.

Identifikasi Cendawan Entomopatogen Dari Rizosfer Tanaman Kelapa Sawit (Elaeis guineensis J.) S, Nur Khalifah; Pramudi, Muhammad Indar; Soedijo, Samharinto
JURNAL PROTEKSI TANAMAN TROPIKA Vol 8 No 3 (2025): Oktober 2025
Publisher : www.ulm.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jptt.v8i3.3517

Entomopathogens are microorganisms that can cause disease in insects. Entomopathogenic fungi are one type of bioinsecticide that can kill insects by infecting them through the skin, digestive tract, spiracles and other holes. This research aims to identify entomopathogenic fungi from around oil palm plants. The method used in this research began with a survey and purposive sampling of soil samples taken at the oil palm plantation of PT Mulia Agro Permai Timur Sampit, Central Kalimantan. Samples were taken at five different points, one sample was obtained at each point at a depth of 15-20 cm. From the isolation results, five types of isolates were obtained, namely the fungi Penicillium spp., Mucor spp., Trichoderma spp., Metarhizium spp., and Beauveria spp. From the Koch Postulate test using Hong Kong caterpillar larvae (Tenebrio molitor) as test larvae which were inoculated with entomopathogenic fungi. The results showed that the five fungus isolates were able to cause death in the test larvae with different death times for each isolate.

Pengaruh Perbedaan Ketinggian Perangkap Kuning Terhadap Hasil Tangkapan Serangga Pada Pertanaman Cabai (Capsicum annum L.) Rahmatullah, Rahmatullah; Soedijo, Samharinto; Marsuni, Yusriadi
JURNAL PROTEKSI TANAMAN TROPIKA Vol 8 No 3 (2025): Oktober 2025
Publisher : www.ulm.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jptt.v8i3.3515

There are many problems and negative impacts caused by insects on chili plants (Capsicum annum L.), so one alternative environmentally friendly control method is to use insect traps, one of the traps that can be used is the yellow trap. The aim of this research is to find out how effective yellow traps are against pests in red chili plantations. This method uses a completely randomized design (CRD) with one factor consisting of four treatments (T1 30 cm, T2 60 cm, T3 90 cm and T4 120 cm), which was repeated 6 times. The results of this study showed that all yellow trap treatments showed that the treatment in the first to sixth weeks had no real effect on trap setting and tended to decrease the number of catches. It was found that the percentage of insect intensity in the observations showed that the highest percentage figure for the T3 treatment was 3.81%, while the lowest percentage figure for the T1 treatment was 3.28%.

Identifikasi Cendawan Entomopatogen Dari Rizosfer Tanaman Kelapa Sawit (Elaeis guineensis J.) S, Nur Khalifah; Pramudi, Muhammad Indar; Soedijo, Samharinto
JURNAL PROTEKSI TANAMAN TROPIKA Vol 8 No 3 (2025): Oktober 2025
Publisher : www.ulm.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jptt.v8i3.3517

Entomopathogens are microorganisms that can cause disease in insects. Entomopathogenic fungi are one type of bioinsecticide that can kill insects by infecting them through the skin, digestive tract, spiracles and other holes. This research aims to identify entomopathogenic fungi from around oil palm plants. The method used in this research began with a survey and purposive sampling of soil samples taken at the oil palm plantation of PT Mulia Agro Permai Timur Sampit, Central Kalimantan. Samples were taken at five different points, one sample was obtained at each point at a depth of 15-20 cm. From the isolation results, five types of isolates were obtained, namely the fungi Penicillium spp., Mucor spp., Trichoderma spp., Metarhizium spp., and Beauveria spp. From the Koch Postulate test using Hong Kong caterpillar larvae (Tenebrio molitor) as test larvae which were inoculated with entomopathogenic fungi. The results showed that the five fungus isolates were able to cause death in the test larvae with different death times for each isolate.

THE GROWTH AND DEVELOPMENT OF Spodoptera pectinicornis (Lepidoptera: Noctuidae) PROVIDED WITH ENHANCED NUTRITION FROM Pistia stratiotes FEEDING VIA FERTILIZATION Aphrodyanti, Lyswiana; Soedijo, Samharinto; Millati, Tanwirul; Aidawati, Noor
Agric Vol. 36 No. 1 (2024)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2024.v36.i1.p67-78

A monophage herbivorous insect called S. pectinicornis can be utilized to biologically control the weed Pistia stratiotes. Insect mass reproduction followed by release into the target weed area is one technique that can be used. The quality of the feed must be taken into consideration during maintenance in order to increase the fitness of S. pectinicornis insects and enable them to function at their best. The fertilization procedure can improve the nutritional value of P. stratiotes as a feed source. The experiment involved applying NPK fertilizer to P. stratiotes at 6 different levels: 0 g (control); 5 g; 10 g; 15 g; 20 g; and 25 g. The findings demonstrated that when NPK fertilizer was applied to Pistia stratiotes, S. pectiniconis larvae, pupae, and imago had a better chance of surviving than controls. S. pectinicornis showed improved insect growth and development since its lifespan was shorter than controls at every developmental stage. The ideal NPK fertilizer dose for maintaining Pistia stratiotes as feed during S. pectinicornis propagation is 15g/20 L of water.

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