File:Farm weeds of Canada (1906) (14589722897).jpg

Identifier: farmweedsofcana00clar (find matches)
Title: Farm weeds of Canada
Year: 1906 (1900s)
Authors: Clark, George Harold, 1872- Fletcher, James, 1852-1908 Criddle, Norman Canada. Dept. of Agriculture
Subjects: Weeds Weeds Botany
Publisher: Ottawa : Published by direction of the Minister of Agriculture
Contributing Library: ASC - York University Libraries
Digitizing Sponsor: Ontario Council of University Libraries and Member Libraries

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t alongrailways and wherever western grain is carried. Ball Mustard is trouble-some as a weed only in the West. Injury: This weed has spread chiefly from the inconspicuous nature ofthe seed. It is frequently overlooked in seed grain, owing to the resemblanceof the persistent wrinkled pod to a small particle of earth. Remedy: Early summer-fallowing and the disking of stubbles in falland spring are perhaps the best way to hold it in check. All seed grainshould be very carefully cleaned before sowing. In very badly infested fieldsthe stubble should be harrowed as soon as the crop is harvested to start a cropof seedlings, which should be disked down late in aiitumn. The next springthe land may again be cultivated and sown late to early barley, which shouldbe cut on the green side, or oats may be sown for green feed. The edges offields should be mown before the seeds of the Ball Mustard are ripe, and thehay fed at once or burnt. This and all the mustards make good green feed. ■26 Plate 7
Text Appearing After Image:
%im^ BALL MUSTARD (Neslia paniculat-a. </.ifli PLATE 9. STINKWEED, Thlaspi awense, L.Other Euglisli names: Penny-cress, French Weed.(Noxious: Dom., Man., N.W.) Introduced. Annual and winter annual, with an abominable smell whenbruised. The most persistent and aggressive enemj- of the western wheatgrower. Plants in bloom when winter sets in freeze up; but, as soon as theythaw out in the spring, they continue to grow and mature their seed^ withoutthe slightest iujurj-. The seeds of these early jilants are ripe early in July.Plants which grow from seed in the spring are not ripe until some weeks later.Erect, stem simple or braiuhiug. Whole plant bright green and quitesmooth. Eoot leaves petioled; stem leaves spear-shaped, coarsely toothed,clasping the stem at the arrow-shaped base. Flowers clear white, one-eighthof an inch across. At first in a small flat cluster at the top of the leafy stem.Kacemes elongated in fruit. Pods flat, f of an inch across, contain-ing from 8 to 16 seeds, on

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