The Diversity of Insects on Durian Plants

Abstract

Durian is a fruit that has very high economic prospects and is one of the state assets that can increase non-oil and gas sector income. This research aims to obtain data related to insect diversity on durian plants in the durian fruit plantations in the Bawen area. Determining the research location for durian plants used purposive sampling which took two fields where 25 and 20 tree samples were taken from each field. The sampling method uses the observative method and the relative method. The observational method is taking insects directly and getting samples at that time, namely by using a sweep net, while the relative method is taking insect samples using traps, namely yellow traps and pitfall traps. The results of the analysis of species diversity data calculations show an index value of 1.5, which includes moderate diversity. Moderate diversity means that the number of individuals per species is distributed moderately and there is moderate community stability. The insect species evenness index shows a figure of 0.5 with the criteria for a medium evenness index. The results of calculating the dominance index, the resulting number is 0.25. The index value shows that the environmental and ecosystem conditions are in good (moderate) condition. Good conditions are also described as stable ecosystem conditions where there is stable interaction between insect populations and their natural enemies.