Muhammad Dzikri Almahdi Hasibuan; Hilwa Walida; Badrul Ainy Dalimunthe; Siti Hartati Yusida Saragih. THE EFFECTIVENESS OF INSECTICIDE APPLICATION WITH ACTIVE INGREDIENT CYPERMETHRIN ON THE INTENSITY OF ATTACKS BY Oryctes Rhinoceros L. ON OIL PALM PLANTS ( Elaeis Guineensis Jacq.) HAS NOT YET PRODUCED RESULTS. IJSET 2026, 5.