Agriculture . mes unfruitful it willbe neglected and then diseases as well as insects will find ahome in it. Even if at some distance from other trees, allsuch should be cut down and Ijurned, since the spores of thesediseases are very light and are carried long distances by thewind and by insects. In the case of black-knot upon plumsor cherries, there is only one course to follow -cut it off andburn it. It will not do simply to cut it off and throw it on thewaste heap ; the will ripen there and spread to the othertrees. If affected twigs and limbs are cut off as soon as thefirst signs o
Agriculture . mes unfruitful it willbe neglected and then diseases as well as insects will find ahome in it. Even if at some distance from other trees, allsuch should be cut down and Ijurned, since the spores of thesediseases are very light and are carried long distances by thewind and by insects. In the case of black-knot upon plumsor cherries, there is only one course to follow -cut it off andburn it. It will not do simply to cut it off and throw it on thewaste heap ; the will ripen there and spread to the othertrees. If affected twigs and limbs are cut off as soon as thefirst signs of disease appear, we shall do much to stop thespread of the disease. It may even be found to pay to cut DISEASES OF THE ORCMAkO. 117 down a whole tree, since it may save the entire orcluird. V/emust consider every one of these httle knots, spots, or bhghtsas breeders and spreaders of disease. If a tree was diseased last year the spores will be left uponthe branches and on the trunk. By spraying before the buds.
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Keywords: ., bookcentury1800, bookdecade1890, bookidag, booksubjectagriculture
