For prophylaxis, a method of soaking seeds in potassium permanganate is used at the germination stage, it is also possible to treat young plants with Bordeaux liquid.
For prophylaxis, habka of qallaji abuurka ee daloolka potassium waxaa loo isticmaalaa marxaladda biqilka, waxaa sidoo kale suurto gal ah in lagu daaweeyo dhirta dhalinyarada leh dareeraha Bordeaux.