Attack Intensity Variety of Robusta Coffee Bean Borer (Hypothenemus Hampei Ferrari) on Four Types of Shade Plant

Abstract

Abstract Coffee bean borer (Hypothenemus hampei Ferrari) is the primary pest of coffee plants that can cause damage and decrease the quantity and quality of production up to 20 -30%. The aim of the study was to determine the diversity of attacks of robusta coffee powder pests on four types of shade plants. The study was conducted in Tanggamus Regency, from May to August 2021. Sampling was carried out randomly based on the type of plant given as treatment, namely (1) mixed single stem coffee plants with pepper plants, shaded single Erythrina subumbrans plants, (2) mixed stem coffee plants with cacao under the shade of Glyricidae, (3) single-stem coffee plants with mixed shade of E. subumbrans and Glyricidae, and (4) single-stem coffee with mixed shade of E. subumbrans and mindri plants. The results showed that the level of coffee fruit pests on the four types of shade plants ranged from 15.28 -15.66 % and was not significant, while the average temperature under the shade was between 25 - 26.1 °C. The results of the regression analysis that air temperature has a negative and strong effect on the intensity of H. hampei pest attack with a regression coefficient value of 0.6231. If the temperature increases by 1°C then the intensity of H. hampei attack decreases by 0.44%