Show potato scab A kansas reader asks tor for the be formula ot of the bordeaux mixture tor for potato scab bordeaux mixture Is used on potato vines for the blight or do downy w DY mildew but not for or potato scab potato scab appears on the surface ot of the potato the test best preventive Is to soak the seed for or about two hours in formaldehyde and retrain refrain from rom planting on infected lands from weeds fungi and fungicides we quote experiments at the north dakota station by professor bollok show that the disease m may by bo be prevented by soaking the seed in a co lution of corrosive sublimate procure an ordinary barrel and fit into the base a common wooden faucet purchase of a druggist two ounces of elney pulverized corrosive I 1 sublimate mercuric empty this all into two gallons of hot water and allow it to stand over night or until uell apparently all dissolved place i in the barrel thirteen gallons of water and then pour in the two gallon solution allow this solution to stand in the barrel four or five e hours during which time it should bo be several times thoroughly agitated to insure equality of solution before using select as fair seed potatoes pot aloes as possible wash off all tile the old dirt and immerse as many as possible leaving them in the solution tor for ono one hour and thirty min MID utes at the he end of this time turn off the solution into another vessel the same solution may thus bo be used a number of times it if u wished asbed after drying the mv potatoes may nay be cut cue and und planted as usual plant upon ground that has not previously borne the disease the potatoes may be cut before treatment it wished wo we believe the form alln treatment Is the best because Is less lesa dangerous than corrosive sublimate |