The Toxic Effect of Essential Oil from Waste Cinnamon (Cinnamomum burmanii (Nees & T. Nees) Blume.) Leaf to Control Helopeltis antonii Signoret in Cocoa Plants in Vitro - Puspita, Roza (Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana, 2019)