Kelimpahan Populasi Penggerek Batang Padi di Subak Sidakarya dan Subak Buaji

Paddy Rice Stemborer Attact and The Role of Parasitoid in Control That Population at Simultaneous and Stagered Ricefield. The arrangement of suistable agriculture in Bali which appropriate with Bali governments mission : Bali Clean and Green Go to Organic. The concept of modern agriculture look like contradiction with the aspects suistainable agriculture. The aspect of cultivation have been done by local agriculture community in Bali call it Subak for many years, but the attack of yellow rice borer still happen, wich adverse farmers side, persist. The efforts control wich has been done, still rely on pesticides, because it can give quick effect, but it is not appropriate for suistainable agriculture. The other solution to solve that issues with the integrated pest management (IPM) as the main component of with is the role parasitoids. The experiment was carried out at simultaneous planting area (Subak Sidakarya, Denpasar Selatan District) and at staggered planting area (Subak Buaji, Denpasar Timur District). The result of this experiment showed that damage intensity of rice stemborer at simmultaneus planting was lower than at staggered planting area. There are four species stemborer at simultaneous planting area and at staggered planting areas, namely Scirpophaga incertulas, Sesamia inferens, Chilo suppressalis, and Chilo polychrysus. Three kinds of egg parasitoids were found to decrease the population of riced stemborer. They were Tetrastichus schoenobii, Telenomus rowani and Trichogramma japonicum. Keywords: simultaneous planting area, staggered planting area, pady stemborer, egg parasitoids