Implementation of integrated pest management based on detrivore augmentation against soil arthropod’s abundance and diversity in rice field
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2017, Vol 10, Issue 4
Abstract
Detrivore augmentation is a part of Integrated Pest Management (IPM) tactic based on local potential owned by farmers. Its main objective is to increase the abundance of decomposers organisms. Decomposers abundance is an indicator of the nutrient cycling availability. It also indicates the availability of alternative energy source that ensures the natural enemy populations. Augmentation efforts made through the addition of biomass include straw residue, Azolla sp., and organic fertilizers. Mutually with other IPM culture techniques applied, it can improve the abundance of soil arthropods by 9% during the dry season. Also there was an increasing by 15% at the wet season. Some taxa such as Araneae, Araneidae (orb-weaver spider) and Formicidae, which acts as a predator, have a significant increase in its population. A higher population was also observed in parasitic wasps, as well as in Collembola’s and Diptera’s: Chironomidae population, which acts as decomposers. In terms of the diversity index, there were no significant differences between sites (p = 0433; n = 48). However, the number of species, that is contributes to the community, is 1.4% higher in IPM site.
Authors and Affiliations
Eny Wahyuning Purwanti, Gatot Mudjiono, Abdul Latief Abadi, Bambang Tri Raharjo
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