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PENGARUH SISTEM PENGAIRAN DAN BAHAN ORGANIK TERHADAP PERKEMBANGAN PENYAKIT BERCAK COKLAT SEMPIT Cercospora oryzae DAN HAWAR PELEPAH DAUN Rhizoctonia sp. PADA TANAMAN PADI: EFFECT OF IRRIGATION SYSTEM AND ORGANIC MATTER ON DEVELOPMENT OF NARROW BROWN LEAF SPOT Cercospora oryzae AND SHEATH BLIGHT Rhizoctonia sp. IN RICE Sofyaningrum, Alaida Nur Laili; Martosudiro, Mintarto; Choliq, Fery Abdul; Pramono, Ali
Jurnal HPT (Hama Penyakit Tumbuhan) Vol. 12 No. 1 (2024)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jurnalhpt.2024.012.1.1

Penyakit tanaman yang sering menyerang tanaman padi di antaranya yaitu penyakit bercak coklat sempit Cercospora oryzae Miyake dan penyakit hawar pelepah daun yang disebabkan oleh Rhizoctonia sp.. Perkembangan penyakit dipengaruhi oleh kegiatan budidaya karena berkaitan dengan lingkungan yang disediakan untuk pertumbuhan dan perkembangan tanaman, meliputi sistem pengairan dan bahan organik. Oleh karena itu dilakukan penelitian mengenai pengaruh sistem pengairan dan bahan organik terhadap perkembangan penyakit bercak coklat sempit C. oryzae dan hawar pelepah daun Rhizoctonia sp. pada tanaman padi. Penelitian dilaksanakan di lahan Balai Penelitian Lingkungan Pertanian (Balingtan) pada bulan Oktober 2022 sampai Februari 2023. Penelitian ini menggunakan Rancangan Acak Kelompok Faktorial yang terdiri dari 2 faktor yaitu sistem pengairan terdiri atas 3 taraf dan bahan organik jerami yang terdiri dari 2 taraf. Hasil penelitian menunjukkan bahwa perlakuan sistem pengairan tidak berpengaruh nyata terhadap intensitas penyakit bercak coklat sempit dan hawar pelepah daun. Pemberian bahan organik jerami berpengaruh dalam menekan intensitas penyakit. Pengairan tergenang dengan bahan organik menghasilkan tinggi tanaman yang tertinggi. Seluruh perlakuan tidak berpengaruh nyata terhadap jumlah anakan. Penambahan bahan organik berpengaruh nyata terhadap hasil produksi tanaman padi. Intensitas infeksi penyakit bercak coklat sempit berkorelasi nyata dan negatif terhadap hasil produksi tanaman padi.

BIOAKTIVITAS EKSTRAK LIMBAH TEMBAKAU SEBAGAI PESTISIDA NABATI TERHADAP HAMA Plutella xylostella PADA TANAMAN KUBIS: BIOACTIVITY OF TOBACCO WASTE EXTRACT AS A VEGETABLE PESTICIDE AGAINST Plutella xylostella PESTS ON CABBAGE PLANTS Abdurrahman, Shafa Ghaziyah; Ikawati, Silvi; Choliq, Fery Abdul; Mustofa, Oki
Jurnal HPT (Hama Penyakit Tumbuhan) Vol. 12 No. 2 (2024)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jurnalhpt.2024.012.2.3

Plutella xylostella L. (Lepidoptera: Ypnomeutidae) merupakan salah satu hama pada tanaman kubis. Serangga ini dapat menyebabkan kerusakan yang parah. Perlu adanya tindakan pengendalian, seperti penggunaan pestisida nabati. Penelitian ini bertujuan untuk menguji toksisitas ekstrak limbah tembakau rokok terhadap P xylostella, sehingga dapat dimanfaatkan untuk pengendalian hama yang ramah lingkungan. Penelitian dilaksanakan di Laboratorium Toksikologi, Departemen Hama dan Penyakit Tumbuhan, Fakultas Pertanian, Universitas Brawijaya, Malang pada Bulan Desember 2022 sampai dengan Bulan Februari 2023. Metode penelitian menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 6 tingkat konsentrasi yaitu 0, 10, 30, 50, 70, dan 90 % dengan 3 kali pengulangan. Setiap perlakuan menggunakan 10 larva P. xylostella. Data yang diperoleh dianalisis dengan ANOVA dan uji lanjut dengan menggunakan uji Duncan, serta analisis probit. Hasil penelitian menunjukkan bahwa ekstrak limbah tembakau mampu menyebabkan mortalitas larva P. xylostella hingga 85 %, menyebabkan penurunan aktivitas makan larva mencapai 81,68 %, menghambat pembentukan pupa dan imago. Median Lethal Concentration (LC50) terdapat pada konsentrasi ekstrak limbah tembakau 63,4 %, dengan Median Lethal Time (LT50) tercepat yaitu pada 14 jam setelah aplikasi.

Toxicity of Clove Oil Nanoparticle Againts (Aphis gossypii) on Chili (Capsicum annum) and Its Predator (Cheilomenes sexmaculata): Toxicity of CO-NPs againts A. gossypii and C. sexmaculata Ikawati, Silvi; Boangmanalu, Maslina; Choliq, Fery Abdul; Aji Pamungkas, Bayu
Journal of Tropical Life Science Vol. 14 No. 3 (2024): In Press
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.03.04

One of the pests that cause economic losses in Chili (Capsicum annum L.) is aphid (Aphis gossypii Glover) (Hemiptera: Aphididae). Therefore, it is necessary to carry out alternative controls that are not damaging and detrimental to the surrounding environment including against beneficial organisms such as the natural enemy Cheilomenes sexmaculata Fabricius (Coleoptera: Coccinellidae). Clove oil and the formulation of essential oils in the form of nanoparticles have been used as a botanical pesticide. The purpose of this work is to determine the toxicity of a clove oil nanoformulation against aphids (A. gossypii) and the six-spotted zigzag ladybird predator C. sexmaculata. This work has six treatments and four replications using a fully randomized design. The results showed that clove oil nanoparticles (CO-NPs) significantly affected mortality and decreased the number of offspring of A. gossypii. The average size of the tested nanoparticles was 166.38 nm and the average zeta potential value of the tested nanoparticles was -19 mV. The CO-NPs can affect the increase in mortality and decrease in the offspring number of A. gossypii. The LC50 value of A. gossypii was 0.32% at the time of observation 48 hours after application while the LT50 value was 3 hours at a concentration of 1.2%. The percentage of decrease in the number of offspring reached 95.01% at a concentration of 1.2%. Results of calculating the selectivity ratio value (SR) showed that CO-NPs are selective against predators C. sexmaculata, with the SR value <1.

Effectiveness of Betel Leaf Extract Against Cercospora sp. Pathogen Causing Chili Leaf Spot In-Vitro Mahfud, Muhammad Afif; Martosudiro, Mintarto; Choliq, Fery Abdul
Journal of Tropical Plant Protection Vol. 5 No. 1 (2024)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2024.005.1.2

The betel plant grows a lot and is easy to find in Indonesia. Part of the betel leaf contains antifungal compounds. This research examined the effect of betel leaf extract and its effective concentration in suppressing the pathogen Cercospora sp. in vitro. The research was conducted at the Pesticide Toxicology Laboratory, Universitas Brawijaya. Using a completely randomized design (CRD) with six treatments and five replications. The treatment was carried out in control and betel leaf extract with concentration levels of 30,000 ppm, 50,000 ppm, 100,000 ppm, 150,000 ppm, and 200,000 ppm. The results obtained were screening tests of compounds, causal tests of extracts on fungi, percentage of inhibition, and growth rate on fungi. Giving betel extract can suppress the growth of the fungus Cercospora sp., and in the 200,000 ppm extract treatment, the results were moderately effective in testing the percentage of inhibition power of the fungus Cercospora sp., which is equal to 41%.

The Effect of Giving Cherry (Muntingia calabura) Leaf Extract on Tobacco Mosaic Virus (TMV) Attacks on Cayenne Pepper Plants (Capsicum frutescens L.) Salsabilla, Alyara Oktavia; Martosudiro, Mintarto; Choliq, Fery Abdul
Journal of Tropical Plant Protection Vol. 5 No. 2 (2024)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2024.005.2.5

Cayenne pepper (Capsicum frutescens L.) is a horticultural crop that is widely cultivated in Indonesia and has high economic value. However, it is not uncommon for the cultivation process to encounter several obstacles, one of which is caused by the Tobacco Mosaic Virus (TMV). One of the actions that can be taken to control this disease is to use induction agents derived from plant extracts. The plants that can be used as inducers are cherry plants (Muntingia calabura). However, research on the use of cherry leaf extract is rarely applied, especially against the TMV virus. Thus, this research needs to be conducted to determine the effect of cherry leaf extract on TMV attack on cayenne pepper plants. The study used a completely randomized design (CRD) in vivo with 6 treatments and 4 replications. The treatment given was cherry leaf extract with different application frequencies at a concentration of 5%. Parameters observed included the disease incubation period, disease intensity, plant growth, and assessment of plant resistance. The results showed that applying cherry leaf extract with an application frequency of 4 times extended the incubation period of TMV and reduced the intensity of TMV disease, with values of 17.88 days after inoculation and 11.20%, respectively. This treatment resulted in a plant resistance category of "resistant." Additionally, the application of cherry leaf extract 4 times also had a positive effect on plant growth, specifically plant height and number of leaves.

Mortality and Antifeedant Effects of some Jamu Waste Extract on Larvae of Spodoptera litura Ikawati, Silvi; Silalahi, Fuji Nafratilova; Izzah, Annisa Nurul; Choliq, Fery Abdul; Mustofa, Oki
AGRIVITA Journal of Agricultural Science Vol 47, No 1 (2025)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v47i1.4564

The amount of herbal waste in Indonesia is quite high, so it needs to be managed to reduce the amount and increase the value of benefits. One way is to utilize it as a botanical insecticide. This study aims to determine the effect and concentration of herbal waste extract that is effective on mortality and inhibition of feeding activity of Spodoptera litura (F.) (Lepidoptera: Noctuidae). Larvae of S. litura are one of the pests in mustard plants. The extraction method used a maceration method with ethanol solvent. Research using four types of herbal waste extracts with a leaf dipping method. The results show that four extracts affect increased mortality and inhibition of the feeding activity of S. litura larvae. The value of LC50 is at 60 HAA, LT50, and the inhibition of eating activity at a concentration of 36% by ginger jamu waste extract is 29%, 27 hours, and 64%. In contrast, curcuma jamu waste extract was 25%, 24 hours, and 68%, respectively. For LC50 at 72 HAA, LT50 and inhibition of eating activity at a 50% concentration of galangal jamu waste extract was 17%, 14 hours, and 43%. While turmeric jamu waste extract was 17%, 16 hours, and 42% respectively.

UJI EFEKTIVITAS CAMPURAN EKSTRAK DAUN PEPAYA DAN DAUN MENGKUDU DALAM PENGENDALIAN Plutella xylostella Linnaeus (LEPIDOPTERA: PLUTELLIDAE): EFFECTIVENESS TEST MIXED EXTRACT OF PAPAYA AND NONI LEAF IN THE CONTROL OF Plutella xylostella Linnaeus (LEPIDOPTERA: PLUTELLIDAE) Putra, Heri Julistiyan Bima; Himawan, Toto; Choliq, Fery Abdul
Jurnal HPT (Hama Penyakit Tumbuhan) Vol. 12 No. 4 (2024)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jurnalhpt.2024.012.4.3

Plutella xylostella merupakan organisme pengganggu tanaman (OPT) yang menyebabkan kerusakan berat pada tanaman kubis. Penggunaan pestisida sintetis secara terus menerus dapat menyebabkan resistensi hama, musnahnya musuh alami, dan residu kimia yang berbahaya. Salah satu pengendalian yang dapat diterapkan dengan menggunakan pestisida nabati dari daun pepaya (Carica papaya) dan daun mengkudu (Morinda citrifolia). Penelitian ini bertujuan untuk mengetahui efektifitas ekstrak daun papaya, ekstrak daun mengkudu secara tunggal dan campuran serta mengetahui sinergisme daya racun ekstrak daun pepaya dan daun mengkudu terhadap larva P. xylostella. Penelitian ini dilakukan di Laboratorium Toksikologi Pestisida Departemen Hama dan Penyakit Tumbuhan, Fakultas Pertanian, Universitas Brawijaya, Malang pada bulan Maret sampai Oktober 2021. Metode aplikasi yang digunakan adalah metode celup daun (pakan). Data yang diperoleh dikonversikan kedalam persentase mortalitas. Berdasarkan penelitian yang telah dilakukan maka dapat disimpulkan bahwa EDP dan EDM secara tunggal dan campuran dengan rentang konsentrasi 10.000 – 40.000 ppm pada tiap perlakuan memiliki pengaruh terhadap mortalitas larva P. xylostella. Sinergisme campuran insektisida EDP dan EDM menunjukkan hasil yang sinergis dengan meningkatkan efikasi sebesar 7,77 kali lipat pada perlakuan EDP dan 3,93 kali lipat pada perlakuan EDM dibandingkan aplikasi insektisida EDP dan EDM secara tunggal.

Toxicity of Clove Oil Nanoparticle Againts (Aphis gossypii) on Chili (Capsicum annum) and Its Predator (Cheilomenes sexmaculata): Toxicity of CO-NPs againts A. gossypii and C. sexmaculata Ikawati, Silvi; Boangmanalu, Maslina; Choliq, Fery Abdul; Aji Pamungkas, Bayu
Journal of Tropical Life Science Vol. 14 No. 3 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.03.04

One of the pests that cause economic losses in Chili (Capsicum annum L.) is aphid (Aphis gossypii Glover) (Hemiptera: Aphididae). Therefore, it is necessary to carry out alternative controls that are not damaging and detrimental to the surrounding environment including against beneficial organisms such as the natural enemy Cheilomenes sexmaculata Fabricius (Coleoptera: Coccinellidae). Clove oil and the formulation of essential oils in the form of nanoparticles have been used as a botanical pesticide. The purpose of this work is to determine the toxicity of a clove oil nanoformulation against aphids (A. gossypii) and the six-spotted zigzag ladybird predator C. sexmaculata. This work has six treatments and four replications using a fully randomized design. The results showed that clove oil nanoparticles (CO-NPs) significantly affected mortality and decreased the number of offspring of A. gossypii. The average size of the tested nanoparticles was 166.38 nm and the average zeta potential value of the tested nanoparticles was -19 mV. The CO-NPs can affect the increase in mortality and decrease in the offspring number of A. gossypii. The LC50 value of A. gossypii was 0.32% at the time of observation 48 hours after application while the LT50 value was 3 hours at a concentration of 1.2%. The percentage of decrease in the number of offspring reached 95.01% at a concentration of 1.2%. Results of calculating the selectivity ratio value (SR) showed that CO-NPs are selective against predators C. sexmaculata, with the SR value <1.

RETRACTED : The Role of Trichoderma sp. as a Biocontrol Agent in Suppression of Root Rot Disease and Soybean Plant Biostimulants Maknunin, Lu'lu'il; Abadi, Abdul Latief; Choliq, Fery Abdul
Journal of Tropical Plant Protection Vol. 6 No. 1 (2025)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2025.006.1.2

This article has been retracted at the request of the author. The author has published the article in the Jurnal Fitopatologi Indonesia (JFI).

Evaluation of Five Shallot (Allium Cepa L.) Varieties For Resistance to Shallot Yellow Stripe Virus (SYSV) Zulverdi, Yudhika Ankenkuala Ramadhana; Martosudiro, Mintarto; Choliq, Fery Abdul
Journal of Tropical Plant Protection Vol. 3 No. 1 (2022)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2022.003.1.3

Shallot Yellow Stripe Virus (SYSV) is one of the economically important viruses of shallot. The incidence of SYSV infection can reach 66%-100%. The high level of SYSV infection on shallot is also due to the lack of resistance varieties to SYSV. This study aimed to determine the resistance of five varieties of shallot and the effect of SYSV infection on shallot production. The study used a completely randomized experimental design (CRD) using five shallot varieties as the treatment with four replication for each treatment. The shallot varieties were Bauji, Thailand, Bima Brebes, Tuk tuk (V4), Trisula (V5), and control. Each experimental unit consisted of 10 plants. The evaluation results showed that the Tuk-tuk variety was categorized as resistant, the Trisula variety as tolerant, and the Bauji, Thailand, and Bima Brebes varieties were categorized as susceptible. The shallot growth and production indicate that SYSV infection causes interference in the plant development process.

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