4 1 10 TEGUH WAHYONO Additional Author Agus Susanto Additional Author Agus Eko Prasetyo Additional Author Heri Santoso Additional Author Yurna Yenni Additional Author Zulfi Prima Sani Nasution Additional Author Sri Wening Additional Author Abdul Razak Purba Additional Author Rizki Amelia Additional Author Diah Atika Ningrum Additional Author Fahrida Yanti Additional Author Agus Hindarto Additional Author Purnama Hidayat Additional Author Nina Maryana Additional Author mixed material 0853196X Medan Pusat Penelitian Kelapa Sawit (PPKS) 2014 Cvr_JPKSv22n2Agus14.JPG Pusat Penelitian Kelapa Sawit (PPKS) Additional Author Arsyad D. Koedadiri Additional Author SUGIYONO Additional Author Fahrida Yanti, Agus Susanto Additional Author Sebayang, E.S. Sutarta, Iman Yani Harahap Additional Author Kolem Ginting, E.S. Sutarta, R.Y. Purba Additional Author Luqman Erningpraja, A. Kurniawan, Arsyad D. Koedadiri Additional Author Eka Nuryanto, Diah Sri Arisanti Additional Author mixed material 08532141 Medan Pusat Penelitian Kelapa Sawit (PPKS) 2004 cover_warta_vol12no14.jpg Konversi dan perbanyakan musuh alami, hama, penyakit, dan gulma kelapa sawit. PUSAT PENELITIAN KELAPA SAWIT Additional Author Sudharto Ps Primary Author Agus Susanto Primary Author Fahrida Yanti Primary Author mixed material Medan PPKS 2005 12583.jpg.jpg Pusat Penelitian Kelapa Sawit (PPKS) Additional Author HARAHAP, Iman Yani Additional Author Sujadi, Bayu Adhi Nugroho, A. Razak Purba Additional Author Eka Nuryanto dan Muhammad Ikhsan Dalil Additional Author Hasrul Abdi Hasibuan, Meta Rivani dan Alida Lubis Additional Author Donnarina Simanjuntak, Fahrida Yanti, A.E. Prasetyo dan Agus Susanto Additional Author Mohamad Arif dan Darwin Sihombing Additional Author mixed material 08532141 Medan Pusat Penelitian Kelapa Sawit (PPKS) 2013 Cover_Warta_Vol._18_No._3.jpg