Identifikasi Serangga Dan Penyakit Di Areal Persemaian Pt. Sari Bumi Kusuma Di Kecamatan Bukit Raya Kabupaten Katingankalimantan Tegah

Abstract

Seedlings are the first step in providing ready-to-plant seedlings and supporting sustainable forest-building processes. Growth of good quality tree, required seeds healthy, superior and free from pests and diseases in the nursery area. Lack of information on the types of pests and diseases that attack plants in the nursery at PT. Sari Bumi Kusuma KM. 93, it is necessary to identify clearly in order to know the types of pests and diseases that attack and further control measures against pest and disease attacks. Pests are all animals that cause losses to forest trees and forest products such as insects, squirrels, rats, pigs, deer and others. But the reality in the field of potential and explosive pests cause losses is from the insect class. Illness is the deterioration of physiological processes caused by a continuous pressure or disorder of a major (biotic or abiotic) cause that cell or tissue activity becomes abnormal, which is described in a typical pathology form called a symptom or sign. It is these symptoms or signs that indicate whether the tree in the forest is healthy or sick. The pest was found are caterpillar, looper and grasshopper leaves. The deaseas are trunk cancer, fruit tumor, leaves spott, gaal and fungi.Keywords: Nursery, pests, diseases.

Fungal Pathogen Prevalence in Myristica fragrans Houtt. (Nutmeg) Nurseries: Insights from Central Sulawesi, Indonesia

“…Subsequently, the spots enlarge and merge into blotches that cover the leaf surface, partially or entirely (Figure 2). In severe symptoms, the leaves experience chlorosis, namely premature yellowing of leaves in which the plant eventually dies [21][22][23]. The isolate of Pestalotia sp.…”

Identifikasi dan Observasi Serangga pada Tanaman Kakao (Theobroma cacao L.) di Kawasan Hutan dengan Tujuan Khusus (KHDTK) Borisallo Kecamatan Parangloe Kabupaten Gowa

“…Ulat jaran (Dasychira inclusa) dari ordo Lepidoptera dan famili Lasiocampidae ini menyerang bagian daun, dan tepi daun tanaman kakao, sehingga akan menimbulkan daun berlubang dan tepi daun terkoyak dengan bekas gigitan yang tidak rata atau bergerigi dan akhirnya tinggal tulang daun yang tersisa. Hal ini akan menghambat pertumbuhan tanaman karena tidak ada proses fotosintesis ulat bulu juga merusak bagian pucuk [8]. Ciri pada famili ini memiliki empat jambul yang merupakan kumpulan serta berwarna cokelat kehitam-hitaman.…”

Severity analysis of fruit plant diseases based on leaf symptoms using ImageJ software

“…Leaf spot typically occurs during periods of high temperatures and rainfall, and thus targets plants with slow growth. According to (Bambang et al, 2019), disease symptoms on plant leaves include leaf spots that appear as stains or small spreading spots and slightly thickened, yellow-brown spots caused by the fungi Pestalotia sp. and Cercospora sp.…”

“…If the leaves are infected, it can jeopardize the plant's life. Some diseases found on mango leaves, lime leaves, grape leaves, rambutan leaves, and sapodilla leaves (Bambang et al, 2019). Grape (V. vinifera) is cultivated plant since 4,000 BC in the Middle East.…”