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. Better fruit. Fruit-culture. May, 1919 BETTER FRUIT Page 9 TABLE I Amount of Dilution. Reading Number gallons water to of Hydrometer one gallon lime-sulphur solution Winter Summer Degrees Specific Spray Spray 1° Baume Baume 34 Gravity 5° Baume 8% 43 Vi 32 8 40 30 714 36% 28 6% 32% 26 5% 29 V4 24 5 26 22 iVi 22% 20 31/2 19% 16 2y2 15 •Applications made according to above schedule. TABLE III—RESULTS OF SPRAYING JONATHANS Lime-Sulphur Summer Spray for Apple Scab By C. C. Vincent, Horticulturist, University of Idaho, Moscovy TY/^HILE the appl
. Better fruit. Fruit-culture. May, 1919 BETTER FRUIT Page 9 TABLE I Amount of Dilution. Reading Number gallons water to of Hydrometer one gallon lime-sulphur solution Winter Summer Degrees Specific Spray Spray 1° Baume Baume 34 Gravity 5° Baume 8% 43 Vi 32 8 40 30 714 36% 28 6% 32% 26 5% 29 V4 24 5 26 22 iVi 22% 20 31/2 19% 16 2y2 15 •Applications made according to above schedule. TABLE III—RESULTS OF SPRAYING JONATHANS Lime-Sulphur Summer Spray for Apple Scab By C. C. Vincent, Horticulturist, University of Idaho, Moscovy TY/^HILE the apple scab is unknown W at present in the fruit districts of Southern Idaho, it is quite prevalent in the fruit sections of Northern Idaho, where the rainfall is from 18 to 25 inches per year. In fact the apple scab is probably the most serious fungus disease with which the fruit grower in Northern Idaho has to contend. This loss is far greater in these districts than is generally appreciated by the ma- jority of the growers. In many of the unsprayed orchards from 10 to 75 per cent of the crop is unfit for sale due to the presence of the scab fungus. Financially this is a dis- tinct loss to the growers, for under the provisions of the State Horticultural Laws of Idaho, it is a violation of the law to place upon the market scab- infected fruit. Aside from the losses which iTiay occur in the reduction of the quality of marketable fruit other losses of scarcely less importance may result, such as premature dropping of apples, reduction in the size of the fruit, dropping of scabby apples before pick- ing, impairing the health and vigor of the trees, etc. The ever-increasing difliculty of many of our growers to control the apple scab caused the Horticultural Depart- ment of the University of Idaho to carry on experiments to determine a safe and effective method of control. The schedule adopted was as follows: (1) To ascertain the value of lime- sulphur as a summer spray for scab.
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