Barley seed is susceptible to a number of fungal diseases. These fungi may persist on the surface of the seed or inhabit the embryo in its interior. There are a number of broad-spectrum systemic fungicides that kill fungal diseases of barley seed. To treat these seeds, the fumigant manufacturers recommend using a seed treater. Seed treaters tumble the seed and the fungicide to allow even and effective coverage. They also limit your contact with the potentially harmful fungicide.
Add the barley seed to the seed treater.
Add the fungicide. The systemic fungicides triadimenol (Baytan) and tebuconazole (Raxil) control loose smut, semi-loose smut, root rot and take-all disease. Insert these fungicides into the seed treater according to the seed treater's operating instructions. Read the fungicide's label carefully. Apply Baytan at a rate of 50ml per 100kg of seed (100ml per 100kg to treat take-all). Apply Raxil at a rate of 22ml per 100kg.
Agitate the seed and fungicide in the seed treater for the amount of time dictated by the seed treater's instruction manual.
Remove the treated seed from the machine if your seed treater does not have a planting function. Plant the seed immediately or read the fungicide's label to determine how long you can store the seed after it has been treated.