. The more important fruit tree diseases of Ontario [microform]. Fruit; Pulvérisation et poudrage en agriculture; Spraying and dusting in agriculture; Fruits; Exploitations agricoles. 16 Davis are among those least attacked. No variety, however, cither of apples or pears, is entirely immune, especially to infection through the blossoms, eveii KiefTer pears often being attacked in this way. Symptoms. The disease manifests itself in many forms. (1) In June we often find numerous wilted and dying young fruits with their enveloping leaves. JVfter a few days these leaves turn brown on apples and ne
. The more important fruit tree diseases of Ontario [microform]. Fruit; Pulvérisation et poudrage en agriculture; Spraying and dusting in agriculture; Fruits; Exploitations agricoles. 16 Davis are among those least attacked. No variety, however, cither of apples or pears, is entirely immune, especially to infection through the blossoms, eveii KiefTer pears often being attacked in this way. Symptoms. The disease manifests itself in many forms. (1) In June we often find numerous wilted and dying young fruits with their enveloping leaves. JVfter a few days these leaves turn brown on apples and nearly black on pears and become very conspicuous. There may be hundreds of such dead little twigs and fruit spurs on a single apple or pear tree. In all or almost all such cases the organ- ism was introduced by insects into the blossoms and by working back through the i. Blighted twigs on pear trunk. The dis- ease runs down such twigs and enters the trunks or branches. (Original.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Howitt, J. E. (John Eaton), 1880-1966; Caesar, Lawson, 1870-1952; Ontario. Dept. of Agriculture. Toronto : Dept. of Agriculture
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectsprayinganddustingin
