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 [Internet]. 2026 Jul. 25 [cited 2026 Oct. 29];5(8). Available from: https://ijset.org/index.php/ijset/article/view/2138