Incidence And Severity Of Anthracnose Disease In Peanut Plants (Arachis hypogaea L.) In West Kawangkoaan District

Abstract

This study aims to determine the incidence and severity of anthracnose disease and the causes of disease in peanut plants in the West Kawangkoaan District. Laboratory research was carried out at the Laboratory of Microbiology and Plant Diseases, Faculty of Agriculture, Sam Ratulangi University. The field research was carried out in three (3) villages, Kanonang Dua (2), Kanonang Tiga (3), and Pinabetengan Village in Kawangkoan Barat District. This research was carried out for 3 (three) months from August to October. This study used a survey method, namely observing purposive sampling. The age of peanut plants to be observed was 30 days after planting, 60 days after planting, and 90 days after planting. The number of plants observed per plot was 40 plants. The results of the research that was carried out, it showed that anthracnose was caused by the fungus Collectrothicum sp. The incidence and severity of the disease increased with increasing age of the plant until it was close to harvest time and in Kanonang village the three highest levels of incidence and severity of anthracnose were disease incidence 30 days after planting, 63.00, 60 days after 100.00, 90 days after 100.00 and disease severity. 30

hst 16.59,60 hst 48.17,90 hst 86.37.

Key-words: Incidence and Severity of Anthracnose Disease

Abstrak

Penelitian ini bertujuan untuk mengetahui insidensi dan severitas penyakit Antraknosa dan penyebab penyakit pada tanaman kacang tanah di Kecamatan Kawangkoaan Barat. Penelitian Laboratorium dilaksanakan diLaboratorium Mikrobiologi   dan   Penyakit Tumbuhan Fakultas Pertanian, Universitas Sam Ratulangi. Penelitian dilapangan di laksanakan di tiga (3) desa, desa Kanonang Dua (2), Kanonang Tiga (3), dan Desa Pinabetengan di Kecamatan Kawangkoan Barat Penelitian ini di laksanakan selama 3 (tiga) bulan dari bulan agustus sampai bulan oktober. Penelitian ini menggunakan metode survei yaitu melakukan observasi secara purposive sampling. Umur tanaman kacang tanah yang akan diamati yaitu 30 hst (hari setelah tanam), 60 hst, dan 90 hst. jumlah tanaman yang di amati per petak sebanyak 40 tanaman. Dari hasil penelitian yang di lakukan menunjukan bahwa penyakit antraknosa di sebabkan oleh jamur Collectrothicum sp. Insidensi dan severitas penyakit meningkat seiring dengan bertambahnya umur tanaman sampai mendekati masa panen dan di desa Kanonang tiga tinggkat insidensi dan severitas penyakit antraknosa paling tinggi yaitu insidensi penyakit 30 hst 63,00, 60 hst 100,00, 90 hst 100,00 dan severitas penyakit 30 hst16,59, 60 hst 48,17, 90 hst 86,37.

Kata kunci :   Insidensi Dan Severitas Penyakit Antraknosa