Kanker Batang: Penyakit Baru pada Kopi di Lampung

Wiyono, Suryo; Suryaningsih, Andika Septiana; Wafa, Ali; Tondok, Efi Toding; Istiaji, Bonjok; Triwidodo, Hermanu; Widodo, Widodo

doi:10.14692/jfi.15.1.9

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…Salah satu aspek penting penentu produktivitas lahan sawah tadah hujan terutama yang budidayanya dilakukan secara organik adalah ketahanan terhadap serangan hama dan penyakit (Al Viandari et al, 2022;Luo et al, 2008). Beberapa hama dan peyakit utama yang sering menyerang tanaman padi di antaranya adalah penggerek batang padi kuning (Tryporyza incertulas), wereng coklat (Nilaparvata lugens), wereng hijau (Nephotetix impicticeps), walang sangit (Leptocorisa oratorius), dan penyakit blas (Pyricularia oryzae) (Hernowo, 1995;Muis, 2007;Wiyono et al, 2014).…”

Section: Pendahuluanunclassified

Komunitas Serangga Arboreal pada Lahan Sawah Tadah Hujan di Kutai Kartanegara, Kalimantan Timur

Budiman,

Sutra,

Hariani

2024

BEDJ

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Pemahaman terkait komunitas serangga arboreal, terutama perannya sebagai herbivor, predator, dan polinator, sangat diperlukan untuk mengelola lahan sawah tadah hujan secara berkelanjutan. Oleh karena itu, penelitian eksploratif deskriptif ini dilakukan pada lahan sawah tadah hujan di Kutai Kartanegara untuk mengetahui struktur komunitas dan diversitas serangga arboreal yang dikoleksi dengan metode penyapuan menggunakan sweeping net, untuk serangga diurnal, dan light trap, untuk serangga nokturnal. Berdasarkan nilai indeks diversitas Shannon-Wiener (H), indeks dominansi Simpson (D), dan indeks keseragaman (1-D), ekosistem sawah tadah hujan di Kutai Kartanegara tersebut tergolong cukup stabil dengan ko-dominansi beberapa spesies serangga arboreal terdiri dari genera Apis, Leptocorisa, Orthetrum, Eurema, dan Melanoplus. Orthetrum berpotensi sebagai musuh alami pada agroekosistem sawah tadah hujan tersebut. Understanding arboreal insect communities, especially their role as herbivores, predators, and pollinators, is needed to manage rainfed paddy fields sustainably. Therefore, this descriptive exploratory research was conducted on rainfed paddy fields in Kutai Kartanegara to determine the community structure and diversity of arboreal insects collected by sweeping net method for diurnal insects and light traps for nocturnal insects. Based on the value of the Shannon-Wiener diversity index (H), Simpson dominance index (D), and uniformity index (1-D), the rainfed paddy field ecosystem in Kutai Kartanegara is relatively stable with the co-dominance of several arboreal insect species belonging to the genera Apis, Leptocorisa, Orthetrum, Eurema, and Melanoplus. Orthetum can potentially be a natural enemy in these rainfed paddy agroecosystems.

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Section: Pendahuluanunclassified

Komunitas Serangga Arboreal pada Lahan Sawah Tadah Hujan di Kutai Kartanegara, Kalimantan Timur

Budiman,

Sutra,

Hariani

2024

BEDJ

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“…Recent coffee plantations in Indonesia face coffee stem canker, a new and destructive disease caused by Fusarium solani. It was reported that severe disease infections could cause the death of coffee trees [2].…”

Section: Introductionmentioning

confidence: 99%

Increase of coffee tree susceptibility to stem canker disease mediated by glyphosate application

Suryaningsih

Wiyono

Sopandie

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Stem canker is a major disease of coffee in Indonesia, caused by Fusarium solani. Previous studies showed a correlation between stem canker incidence and glyphosate application. The study aimed to determine the effect of glyphosate application on coffee stem canker and the underlying physiological mechanisms. The research used glyphosate treatments with the concentrations of 0, 4, 8, and 16 ml.L−1. In vitro experiments were carried out by measuring the growth of F. solani colony after glyphosate treatment. In planta, tests were conducted by artificial inoculation on glyphosate-treated coffee seedlings. The severity of stem canker was assessed. In a separate test, coffee seedlings were treated with glyphosate without pathogen inoculation. In the second experiment, physiological change was determined by measuring photosynthetic pigments, gas-exchange properties, lipid peroxidation, and activity of ascorbate peroxidase (APX) and catalase (CAT) enzymes. In vitro tests showed that glyphosate had antifungal activity against F. solani. In planta, the test showed that glyphosate treatment caused higher susceptibility to stem canker in coffee seedlings, indicated by the increase of canker wound depth. Glyphosate treatment on coffee decreased the chlorophyll, carotene contents, and reduced photosynthesis rate, caused oxidative stress depicted by higher lipid peroxidation and increased enzyme APX and CAT activity.

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Etiology of Anthracnose Disease on Shallots Caused by Colletotrichum gloeosporioides

Amrullah,

Wiyono,

Maharijaya

et al. 2023

J Fitopatol Indones

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Etiology of Anthracnose Disease on Shallots Caused by Colletotrichum gloeosporioides Anthracnose disease can occur in all growth phases of shallot plants (Allium cepa var. aggregatum); however, disease development and characteristics of the causal agent are not yet known. This research was conducted to study the etiology of anthracnose disease through in vivo and in vitro approach, which includes symptom development, incubation period, and pathogen characteristics. Early symptom of the disease is indicated by the appearance of white spots which then enlarge and finally caused the tissue dies. The typical symptom involves the presence of a concentric orange-brown pattern on the spots with incubation period of 2-4 days. The morphological characteristics of the pathogen colony are white, the conidium is cylindrical, the hyphae are septate. Other character includes the presence of acervulus and setae. Molecular identification of the pathogen showed 99.51% homology with Colletotrichum gloeosporioides accession KT390192.1 from China which originates from tobacco plants.

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Kanker Batang: Penyakit Baru pada Kopi di Lampung

Cited by 3 publications

References 13 publications

Komunitas Serangga Arboreal pada Lahan Sawah Tadah Hujan di Kutai Kartanegara, Kalimantan Timur

Komunitas Serangga Arboreal pada Lahan Sawah Tadah Hujan di Kutai Kartanegara, Kalimantan Timur

Increase of coffee tree susceptibility to stem canker disease mediated by glyphosate application

Etiology of Anthracnose Disease on Shallots Caused by Colletotrichum gloeosporioides

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