EFEKTIVITAS TANAMAN SELEDRI (Apium graveolens L.) SEBAGAI TANAMAN REPELENSI POPULASI DAN SERANGAN Spodoptera litura F. PADA BUDIDAYA BAWANG MERAH (Allium ascalonicum L.) DI DESA PESANGGRAHAN

Spodoptera litura F. is a plant pest organism (OPT) on shallot plants that must be prevented so shallots become productive. One way to prevent it good and not damage the environment use of tumangsari in form celery plants. The purpose study was determine effectiveness (Apium Graveolens L.) as population Litura Repellent Plants Cultivation Shallots (Allium Ascalonicum Pesanggrahan Village. This research an experimental using randomized block design (RAK) pattern, one ANOVA test data analysis technique with 5% significance post hoc follow-up smallest difference analysis. results showed were effective suppressing attacks. most treatment 4 PTS which could reduce zinc intensity F., 1.66 0, respectively. 15%.