Century Dictionary and Cyclopedia
- n. A fast knot: opposed to running-knot.
- n. A species of pyrenomycetous fungus, Sphæria morbosa, which attacks plum-trees and some varieties of cherry, forming large, black, knot-like masses upon the branches.
“The fungus is also related to the black-knot fungus on the plum, but its life-history is not yet known.”
“In a well kept and well sprayed orchard black-knot is not at all likely to appear.”
“Also examine plum and cherry trees for black-knot.”
“The civic nature of these problems is appreciated when we realize that it would do little good, for example, for one person to destroy the breeding-places of mosquitoes on his premises, if his neighbors did not do likewise about their homes; or for one orchardist to cut out the blight from his pear-trees or the black-knot from his plum-trees, if his neighbors did not co-operate with him by ridding their orchards of these diseases.”
“Do not let the cabbage club-root disease breed on wild turnips and other mustards, or black-knot on plum sprouts and wild cherries, or tent-caterpillars on wild cherries and other trees.”
“There are four leading difficulties in the growing of plums -- leaf-blight, fruit-rot, black-knot, and curculio.”
“The black-knot is best kept in check by cutting out the knots whenever they can be seen, and burning them.”
“Orchards that are thoroughly sprayed with bordeaux mixture for the leaf-blight and fruit-rot fungus are less liable to attacks of black-knot.”
“The branches are very liable to disfigurement by the black-knot and the foliage by the tent-caterpillar.”
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