Effectiveness of vermicompost with additives of various botanical pesticides in controlling Plutella xylostella and their effects on the yield of cabbage (Brassica oleracea L.var. Capitata

The larva of Plutella xylostellacauses damage to cruciferous plantsby feeding the tissue between theleaf surfaces. To increase the production of organic cabbage vegetables, it is necessary to developbotanicalpesticides. This study aims to describethe effect of vermicompost with additives of various botanical pesticides on the intensity of the moth diamondback attack and cabbageyield.The pot experimentemployed randomized block design, with six treatments including plants: (1) without vermicompost and pesticide (control), (2) with synthetic pesticide application (SP), (3) with the application of the mixture of vermicompost and neem (V+N),(4) with the application of the mixture of vermicompost and papaya (V+P),(5) with the application of the mixture of vermicompost and marigolds leaves (V+M), (6) with the application of a mixture of vermicompost and soursop leaves (V+S).Each treatment has five replications and three pot samplesper replication. The results showed thatat the end observation of attack intensity of P. xylostella, treating cabbage with marigold leaves (20.26%) and soursop leaves (17.50%) had the same effectiveness with synthetic pesticide (21.86%) and significantly different with the other treatments (P<0.05) byintensity attack of 29.69% (neem leaves) and 24.31% (papaya leaves). Treating cabbage with either soursopleaves or marigold leavesincreasesthesize of the cabbage head, marketable yield, fresh weight and dry weight of biomass total and significantly different from the other treatments (P<0.05). The results suggest that application of vermicompost with botanical pesticide additives is effective to control P. xylostellain the production of organic vegetables.