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All Journal International Journal of Multidisciplinary Sciences and Arts Kognitif: Jurnal Pendidikan dan Inovasi Pembelajaran
Yuza Defitri
Universitas Batanghari Jambi, Indonesia
Computer Science & IT Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Other

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Percentage And Intensity Of Stick Cancer (Phythotora Palmivora. Butler) On Cocoa Plants (Theobroma Cacao) And Its Influence On Dry Cocoa Bean Production (Kg) Yuza Defitri; Ridawati Marpaung; Ahmad Reza
International Journal of Multidisciplinary Sciences and Arts Vol. 3 No. 2 (2024): International Journal of Multidisciplinary Sciences and Arts, Article April 202
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/ijmdsa.v3i1.3604

Abstract

This study aims to determine the intensity and percentage of P. palmivora stem canker disease and identify the types of disease that occur on cocoa plant stems (Theobroma cacao) as well as the influence of the intensity and incidence of stem canker on stem canker disease. production of cocoa beans (T. cacao). The method used in this research is the observation method, the procedure for determining the research location was carried out by means of purposive sampling. The results of the research showed that the sample plants that were attacked by stem cancer showed symptoms of attack such as brown, purplish red stems, no holes, wet skin texture and black spots like rot. The highest percentage of stem cancer attacks was on plantation 3 at 37.78% and the lowest percentage of stem cancer attacks was on plantation 1 at 11.11%. The highest intensity of stem cancer attacks was on plantation 3 at 17.33% and the lowest intensity of stem cancer attacks was on plantation 1 (maintained) with an attack percentage of 6.39%. The results of observations on cocoa plant stem samples found a type of disease belonging to the Phytophthora palmivora fungus group at research locations 1, 2 and 3.
Intensity of Some Diseases Main Features of Cocoa Plants (Theobroma Cacao, L.) in Sebapo Village, Mestong District Yuza Defitri
Kognitif: Jurnal Pendidikan dan Inovasi Pembelajaran Vol. 2 No. 3 (2026): Kognitif: Jurnal Pendidikan dan Inovasi Pembelajaran
Publisher : Inovan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63217/kognitif.v2i3.396

Abstract

Cocoa is one of the plantation commodities that has a relatively high economic value among other plantation crops and plays an important role as a source of foreign exchange for the country through exports and driving the regional economy, especially in rural areas. To increase cocoa production in Sebapo Village, Mestong District, it is necessary to know the condition of the cocoa plants affected by disease, the percentage and intensity of the disease, and how often they are affected . This information is useful for implementing disease control techniques in cocoa plants. This study aims to find out about the main diseases that attack cocoa plants, such as Fruit Rot Disease, Stem Cancer Disease, and Disease. Vascular Streak Dieback (VSD ) and what is the percentage and intensity of attacks of these diseases. The study was conducted using a simple random sampling method. Plant samples were taken randomly from smallholder cocoa plantations. Data were then collected by counting all healthy and diseased plants to determine the percentage and intensity of diseased plants . Samples of diseased cocoa plants were identified at the Unbari Basic Laboratory. The results of the study show that fruit rot disease caused by fungus Phytopthora palmivora in Sebapo village the percentage of attack was 33.33% and the intensity of attack was 14.57%, stem cancer disease caused by Phytopthora palmivora fungus the percentage of attack was 26.66% and the intensity of attack was 12.96%, Vascular Streak Dieback (VSD) disease the percentage of attack was 15% and the intensity of attack was 09.66%.
Coconut Plants (Cocos Nucifera L.) And Some Pests And Diseases That Attack Them Yuza Defitri
International Journal of Multidisciplinary Sciences and Arts Vol. 4 No. 3 (2025): International Journal of Multidisciplinary Sciences and Arts, Article July 2025
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/ijmdsa.v4i3.6435

Abstract

This study aims to identify several pests and diseases that attack coconut plants. The benefits of the plant lie not only in the flesh of the fruit, which can be processed into coconut milk, copra, and coconut oil, but all parts of the coconut plant have significant benefits. The method used for sampling was a purposive sampling method in the main nursery. In this study, sampling was conducted in one village with three nursery locations (f?, f?, and f?). The population at each nursery location was 130 seedlings. Therefore, the sample used was 15% of the 130 plants, namely 20 plants. The results of this study: coconut beetle pests can be controlled effectively with insecticides: Sevin 85 SP with a dose of 10 grams/tree where half is watered and the rest is sprinkled onto the shoots of the plant towards the growing point, with an interval of every two months - Lebaycid 50 EC, with a dose of 5 cc/liter of water/tree and an interval of two months - For preventive measures, Basudin 10 G can be used with a dose of 20 grams/tree directly sprinkled onto the shoots of the plant and repeated every 3 months.
Co-Authors Ahmad Reza Ridawati Marpaung