Matumizi ya kemikali
Madoa yanayosababishwa na bakteria yanaweza kudhibitiwa kwa kutumia kemikali zifuatazo; Acibenzolar (Actigard 50WG) Copper fungicides (Champ Dry prill, Champ Formula 2, Copper-Count-N, Cuprofix MZ Disperss, Kocide, Kocide DF, Nordox, Tofix Dispress Basic Copper) Copper/ EBDC/Zoxamide Mixtures, Cuprof ix Dispress MZ, Gavel, Mankocide) Famoxadone/Cymoxanil (Tanos) na Streptomycin (Agri-strep).