. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. 498 ENCYCLOPEDIA OF PRACTICAL HORTICULTURE previously weakened by disease or me- chanical injury showed the most winter killing. This was especially true in Fre- mont, Pottawattamie, Mills, Iowa, Polk and Page counties, south of the Rock Isl- and railway, where no cases of injury found was traceable to winter killing alone. Here the blister canke
. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. 498 ENCYCLOPEDIA OF PRACTICAL HORTICULTURE previously weakened by disease or me- chanical injury showed the most winter killing. This was especially true in Fre- mont, Pottawattamie, Mills, Iowa, Polk and Page counties, south of the Rock Isl- and railway, where no cases of injury found was traceable to winter killing alone. Here the blister canker or Illinois canker was the most common cause of in- jury and it is considered by the experi- ment station as a very serious menace to Iowa orchards. In a recent bulletin is- sued by the station on new fungus. Fig. 1. Canker on Young Tree. Winter Injury. (Purdue Experiment Station.) Due to growths in Iowa, No. 131, there is a de- scription of this disease. In Harrison and Woodbury counties, winter's severe cold is the chief cause of trouble. Where orchards are afflicted with canker or other disease, the diseased wood should be cut out. That should be done at once. The cuts should extend back well into the healthy bark and wood. The wounds should be thoroughly cleansed and disinfected with any good disinfect- ant, as formalin, corrosive sublimate, copper sulphate, Bordeaux mixture, or lime sulphur, and then covered with paint. Where the trees have been weakened, provide them with a generous and con- tinuous supply of food and the soil moist- ure necessary to make the food available to the tree. This can be done by break- ing up the land and keeping the soil well tilled so as to form a dust mulch at least three inches deep. Whenever possible, apply manure, especially where the soil is too steep for cultivation. This will add fertility and helps to conserve moist- ure. This treatment will bring many trees back into good condition and, while they may not produce apples this season
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Keywords: ., bookcentury1900, booksubjectfruitculture, booksubjectgardening
