The Diversity and Density of the Population Parasitoid who Associated with Plutella xylostella L. (Lepidoptera: Plutellidae) on Plantation Plants without and with Insecticide Application - SUPARTHA, NI PUTU ESA YANTI; Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Udayana Jl. PB. Sudirman Denpasar 80362 Bali (E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology), 2014)