oN 
xvi / WEEDS. 
i 
planés grow, that he may know how to direct his efforts to subdue them. 
A perennial weed, like the Canada Thistle or Couch Grass, is, during the 
early stage of its existence, easily destroyed ; but later in the season it 
- makes strong underground stems, or roots, as they are commonly but in- 
correctly called, which have great tenacity of life,and which have within 
them an accumulation of nourishment which enables them to throw up 
several successive crops of herbage; plowing such weeds generally ag- 
. gravates the trouble, for, unless every fragment be removed from the 
ground, a thing very difficult to accomplish, each piece that is left makes 
a separate plant. In the case of weeds of this description, the necessity 
of early eradicating them is apparent, for if once well established, and 
an underground provision depot formed, the farmer and the plant are 
placed in the condition of beseiging and besciged ners 2008 as the 
provisions hold out the latter can maintain its ground. It becomes a 
question of endurance, for the underground supply must be eventually — 
exhausted in the attempt to produce new stems and leaves, and if the 
farmer, by rsistently cutting these away, prevents any new accession 
pe 
to the stock of itn a: Sa gube are at leg pucoum. Often re- 
peated cuttings will a h exh tion of its vi- 
tality. In some cases salt has been used with | sucéess, especially upon 
Thistles, applied immediately after mowing. The farmer will do well to 
keep in mind two rules. Do not let oeehe Nowe, aa do not let them 
breathe, for the leaves may be considered the lungs of the plant, and 
without the aid of these it cannot long majntain itself. 
