Effectiveness Of Two Botanical Insecticide Formulations To Two Major Cabbage Insect Pests On Field Application

Abstract

A field application of two botanical insecticide formulations was conducted on cabbage crops in Bogor, West Java, Indonesia to assess the effectiveness of these formulations in reducing two major cabbage insect pest populations. The efficacy of two botanical insecticide formulations, mixtures of Piper retrofractum (Piperaceae) and Annona squamosa (Annonaceae) (RS) extracts and Aglaia odorata (Meliaceae) and A. squamosa (OS) extracts at 0.05% and 0.1% was compared to a synthetic pyrethroid, deltamethrin at 0.04% and a microbial insecticide, Bacillus thuringiensis at 0.15%. The application of both RS and OS formulations decreased the population of Crocidolomia pavonana (F.) (Lepidoptera: Pyralidae) and Plutella xylostella (L.) (Lepidoptera: Yponomeutidae) and the treatments of RS and OS at 0.1% was more effective than synthetic insecticide. The application of RS and OS did not affect the performance of insect pest natural enemies.