**Appendix A**

**Figure A1.** Six different types of crops (A = oilseed rape—*Brassica napus*, B = maize—*Zea mays*,C= sunflower—*Helianthus annuus*, D = late catch crop, E = honeydew, F = Melezitose) and their winter honey bee colony loss rates (and 95% CI): The maps indicate the rough location of the main wintering apiary of the participants. Multiple crop reports were possible, which means that different crops could apply to the same beekeeper.

*Diversity* **2020**, *12*, 99

**Figure A2.** Treatment methods (yes = *n* > 19) used in spring 2018 (April–May) as single factors to winter honey bee colony loss rates (and 95% CI): To improve sample size, the oxalic mixture was added to oxalic trickling.

**Figure A3.** Treatment methods (yes = *n* > 19) used in summer 2018 (June–October) as single factors to winter honey bee colony loss rates (and 95% CI): To improve sample size, synthetic methods were grouped together and the oxalic mixture was added to oxalic trickling.

**Figure A4.** Treatment methods (yes = *n* > 19) used in autumn/winter 2018 (November–January) as single factors to winter honey bee colony loss rates (and 95% CI): To improve sample size, the oxalic mixture was added to oxalic trickling.
