Serangan Wereng Batang Cokelat di Desa Purwabakti, Kabupaten Bogor serta Kaitannya dengan Teknik Budidaya Petani

Abstract

The population's outbreak of the brown planthopper occurred for the first time in Purwabakti Village, Bogor Regency during the 2020/2021 rice planting season. The factors related to this phenomenon has not been reported yet. Field research which included observing the level of plot damage, interviewing rice cultivation techniques by farmers, and exploring the diversity of endophytic fungi on rice stems was carried out with the aim of analyzing cultivation techniques related to the level of plot damage and knowing the diversity of endophytic fungi on rice stems. Observation of the level of damage to plots was carried out by estimating the percentage of damage to plots based on the appearance of visual symptoms of damaged plots due to planthopper attack. Information on rice cultivation practices was collected by interview technique. Isolation of endophytic fungi was carried out on samples of rice stems in damaged and undamaged plots. Data analysis was done by descriptive method through cross tabulation approach. The relation between cultivation techniques and the level of plot damage was analyzed by Chi-square test with a significance level of 5%. Based on the results of the study, the cultivation technique factors that were significantly related to the level of plot damage due to WBC attack in Purwabakti Village were rice variety, dose of N fertilizer, use of K fertilizer, and burning of straws. The level of moderate, severe, and puso damage was mostly found in the plots planted with IR Kebo rice varieties, plots that were given high doses of N fertilizer, plots that were not given K fertilizer, and plots where straw was burned. The diversity of endophytic fungi on rice stalks is low. The results of the isolation of endophytic fungi found three isolates that were suspected to have mutualistic potential for plants, namely HN 1, HN 2, and PN 2.