KELIMPAHAN DAN KEKAYAAN ARTROPODA PREDATOR PADA TANAMAN PADI YANG DIAPLIKASI BIOINSEKTISIDA BACILLUS THURINGIENSIS

Authors

  • Fina Sunariah Program Studi Pengelolaan Lingkungan, Program Pascasarjana, Universitas Sriwijaya, Palembang
  • Siti Herlinda Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO), Universitas Sriwijaya Palembang
  • Chandra Irsan Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Sriwijaya Palembang
  • Yuanita Windusari Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Sriwijaya Palembang

DOI:

https://doi.org/10.23960/j.hptt.11642-50

Keywords:

abundace, arthropod, paddy, species richness

Abstract

Abundance and species richness of the predatory arthropods on paddy treated with Bacillus thuringiensis bioinsecticide. Application of bioinsecticide from bacterial entomopathogen has not been reported yet that can decrease abundance and species richness of predatory arthropods, such as spiders and predatory insects. This research was aimed to analyze the abundance and species richness of predatory arthropods paddy fields applied by B. thuringiensis bioinsecticide on paddy in fresh swamp area. Areas observed were 2 ha paddy field’s at Situ Bagendit variety. Predatory arthropods inhabiting canopy were sampled using sweep but soil dwelling arthropods were trapped using pitfall traps. The result showed that abundance of spiders inhabiting canopy decreased significantly after B. thuringiensis bioinsecticide application on paddy compared to control without bioinsecticide but the abundance of predatory insects were not significantly affected by the bioinsecticide. Application of the bioinsecticide did not significantly affect the abundance and species richness of soil dwelling predatory arthropods, such as spiders and predatory insects.

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Published

2016-01-18
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