i68 Weeds. 



chief explanation of the sudden app'^irance 

 of false flax in new centres where formerly 

 it was not known. 



Observations. In the conflict with false 

 flax 'it will be well to bear in mind the fol- 

 lowing: (i) That grass seeds should inva- 

 riably be sown along with spring grain, as 

 wheat or barley; (2) that autumn cultiva- 

 tion is always the most important thing to 

 be attended to, owing to the natural ten- 

 dency of the weed to germinate from seed 

 in the fall of the year; (3) that when false 

 flax is found in meadows merely in detached 

 patches, the infested parts may be cut and 

 used for soiling purposes, while the remain- 

 der of the crop may be harvested in the 

 usual way; (4) that where alfalfa can be 

 substituted for the ordinary meadow crops 

 it is well to make the change, inasmuch as 

 in that case the first cutting of the alfalfa 

 would take place before the false flax would 

 be ripe. 



(3) FRENCH WEED. 



Frenchweed (Thlaspi arvense), also 

 known as pennycress and stinkweed, is an 

 annual, but when it has not yet produced 

 seeds in the autumn, it will live through the 



