OCR Text |
Show Bordeaux Mixture Very Effective for Leaf Spot Cherry leaf-spot or shot-hole disease caused serious falling of leaves from many trees in midsummer last year, and so weakened the trees that winter win-ter killing may be expected. Since spores live over winter on the fallen leaves, a serious recurrence of the disease dis-ease next summer Is expected by experiment ex-periment station botanists. In experiments conducted by these specialists, in Ohio, bordeaux mixture proved very effective in controlling the disease on sour cherry trees. However, bordeaux cannot be used on sweet cherry foliage. Lime-sulphur, they found, may be used on either sweet or sour cherries with fairly good results. Self-boiled lime-sulphur and its substitutes are not recommended. |