Ecology, Environment and Conservation Paper

EFFECT OF SOURSOP LEAF EXTRACT SOLUTION ON THE DEATH OFARMYWORM (SPODOPTERA LITURA F.) ON MUSTARD PLANTS

Akhmad Rizali, Noor Laili Aziza and Yusriadi Marsuni

Abstract

Mustard (Brassica juncea L.) is a type of vegetable plant that is widely cultivated because the content in it is beneficial for the body. Cultivation of mustard plants is experiencing problems, namely a decrease in production caused by armyworm attacks. Therefore, it is necessary to have an environmentally friendly control to suppress this pest population. One of the control methods that can be used is by using soursop leaves. The research design used was a completely randomized design (CRD) with 1 factor, with 4 treatments and 5 replications. The treatments used included P1 (control), P2 (concentration 10 g/l extract), P3 (concentration 20 g/l extract, and P4 (concentration 30 g/l extract). The results obtained showed treatment P4 soursop leaf extract solution was effectively used in the control of armyworms P4 is the best concentration be able to kill the armyworm (Spodoptera litura) amounted to 80% within 24 hours of observation after being treated, with a concentration of 30 g per liter because it showed the best results on all parameters, and the LC50 value in this study was at a dose of 16.64 g/l.