UJI EFEKTIVITAS PESTISIDA NABATI TERHADAP MORTALITAS DAN INTENSITAS SERANGAN ULAT GRAYAK (Spodoptera litura Fabricus) PADA TANAMAN SAWI (Brassica juncea L.)

Armyworm (Spodoptera litura F.) is one of the important pests on plant mustard greens. The purpose this research to get type pesticide that effective gives highest effect mortality and intensity attack armyworm in (Brassica juncea L.). method used experimental while design experiment was Complete Random Design (RAL) a single factor for observation Randomized block (RAK) consisting 8 treatments with 4 replications. standard treatment P0 (Control/No Treatment), P1 (Papaya Leaf Extract 300 g/l), P2 500 P3 (Extract Stem Lemongrass 120 P4 160 P5 Neem Leaves P6 g/l) P7 (Karbosulfan 2ml/l). results showed application some real influence L.) varieties Tosakan. Types vegetable pesticides g/l (treatment P6) gave 87.50%, lowest 57,37%, larval weight 0.34 g, pupa 0.04 an average LT50 value 4-5 days produced 10.81 g.
 
 Keywords: Intensity S. litura; Mortality; Pesticide.