NOVIANA SEUK Pengarang Ir. Abdul Kadir Djaelani, MP Dosen Pembimbing 1 Herlyn Djunina, S. Sos. MA Dosen Pembimbing 2 Endeyani V. Muhamad, S.Pt.,M.Si Penguji 2 Dr. Jacqualine A. Bunga, SP., M. Si Penguji 1

The response of farmer groups in umalor village, west Malaka District, Malaka Regency in using soursop leaves as a botanic pesticida to control leafworm pests on mustard plants using Noviana Seuk1), Ir. Abdul Kadir Djaelani, MP 2), Herlyn Djunina, S.Sos,MA2) Research on the response of Umalorin Umalor village, west Malaka District, Malaka Regency farmer groups in using soursop leaves as a control leafworm pests on mustard plants using in September 2020. The purpose of this study was to determine the response (attiudes, knowledge) of farmers to the usa of botanical pesticides for soursop leaves on mustard greens using demonstration methodes and to examine the relatoinship between internal and external factor regarding the response (attitudes, knowledge) of farmers in Umalor Village to the use of botanical pesticide technology. Soursop leaves to control leafworm pests (spodoptere exigua) on mustard plants. This study uses demonstration methods and methods of analysis, namely the scoring, correlation of tau control and rank Spearman. The results of the analysis showed that the knowledge of farmers after applying technology was included in the high category with an average value of 2,42 (high category) and the attitude that was included in the accept category with an average of 2,53. As well as the relationship between internal and external factors that influence the response which has a significant relationship, namely the experience of farming, intensity of counseling, technological characteristics and age. Key words : response, farmer groups, soursop leaves, caterpillar pests, vegetable pesticides, mustard greens. 1) Student of Kupang State Agricultural Polytechnic 2) Advisor