WEEDS. 303 



corn and weeds have a good start. Before any other 

 cultivation is given the morning glories should be re- 

 moved with a hoe. With ordinary cultivation there- 

 after the morning glories will not cause further 

 trouble that season. 



Biennial plants require to be watched for two years 

 in order to kill them. In practice it is best to cut them 

 down when they begin to flower, cutting well into the 

 ground. The root then dies. 



With perennials the plants must not only be kept 

 from going to seed, but the plants themselves must be 

 destroyed. 



No common flowering plant can live without leaves. 

 Constant cutting of the tops so that no part appears 

 above the ground will kill it. Some perennials, such 

 as morning glories, may be killed on restricted areas 

 by pasturing with sheep. 



Land may be left fallow or put in some hoed crop, 

 and in either case given thorough cultivation. Heavily 

 manuring the land and growing some grain crop, fol- 

 lowed closely by another, and perhaps still another, and 

 afterward giving thorough cultivation, will often kill 

 perennials completely. Rye and millet are good crops 

 to use. In short, any method that prevents the plant 

 from producing tops will kill it. With care and 

 judgment it may be done without great expense. 



Successful farming in all its branches is an exact- 

 ing business. It requires constant and careful watch- 

 fulness. Weed destruction is not the least exacting of 

 its many phases. 



