THE MUSTARD FAMILY 87 



clover fields and new meadows in fall wheat districts. Its 

 disagreeable odour and flavour render it objectionable to all 

 farm stock but sheep. 



Remedy: Hand-pull small areas when practicable. Avoid 

 winter crops on land polluted with seeds of this weed. Prairie soils 

 infested with this winter annual should receive a thorough 

 discing or shallow plowing in the spring before seeding. When 

 a crop of winter wheat is infested with False Flax, harrowing 

 in the spring kills the young plants without injuring the wheat. 

 A thorough summer-fallow, with cultivation the previous fall 

 and continuous cultivation throughout the summer, is recom- 

 mended for fields badly infested with this weed. 



ALLIED SPECIES: Small-seeded False Flax (Camelina 

 microcarpa Andrz.) resembles common False Flax, but is 

 more slender and has smaller pods. The first cutting of red 

 clover containing this weed should be taken early. The first 

 crop of alsike in the fall wheat districts usually contains some 

 False Flax and should not be taken for seed unless the weeds 

 are first hand-pulled and destroyed. This pest does not long 

 give serious trouble where a short rotation of crops is 

 practiced and where thorough cultivation and seeding to grasses 

 is done with spring grains instead of fall wheat. The seeds 

 (Plate 73, fig. 33) are only about 1/20 of an inch long, oblong 

 in outline, plump, dark reddish brown. They often occur in 

 large quantities in alsike clover and timothy seeds. 



Round-seeded False Flax (Camelina dentata Pers.) was 

 introduced into Manitoba in 1906 with imported flax seed. 

 The seeds (Plate 73, fig. 34) vary much in form and size, being 

 generally larger than those of common False Flax, irregularly 

 oval or oblong in outline, thickly flattened and pale yellow in 

 colour. 



In May get a weedhook, a crotch and a gloue, 



and weed out such weeds, as the corne doth not loue: 



For weeding of winter corne, now it is best, 

 but June is the better, for weeding the rest. 



Thomas Tusser, Five Hundreth Pointes of Hiisbandrie, 1557. 



