This study was conducted between 2019-2020 in Erzincan Province Çayırlı District to reveal beneficial and harmful species the biology of Spodoptera exigua (Hbn.) (Lepidoptera: Noctuidae), which is an important pest sugar beet cultivation area. The area designated as “Erzincan Beet Production Area” (EÇPÜA) has many areas. production obtained from these fields changes according years, but also no...