Varis, Anna-Liisa. “On the Importance of the Sowing Time of Crucifers in Preventing the Damage Caused by Cabbage Maggots (Hylemyia spp), on the Basis of Tests Made on Big-Leafed Turnip”. Agricultural and Food Science 30, no. 1 (January 1, 1958): 264–270. Accessed November 23, 2024. https://journal.fi/afs/article/view/71459.