LAWN BEAUTIFICATION 293 



Both of these produce many long and persist- 

 ently sprouting roots. The morning-glory sends 

 its roots to great depths and has taken possession 

 of many acres of the best land. This, of course, 

 greatly reduces the production of crops and the 

 value of the land. 



The overrunning of a field is due to the fact 

 that the owner of the land was careless in not 

 destroying the morning-glories when they first 

 appeared. This weed spreads in all direc- 

 tions like a fire and its spreading is increased 

 by ordinary cultivation, as small portions 

 of the roots are carried by the cultivator to 

 other locations where they soon grow into new 

 plants. 



It is extremely difficult to exterminate the 

 perennial morning-glory in orchards and vine- 

 yards because the ordinary cultivating machinery 

 does not run close enough to the rows. The only 

 way to exterminate this weed is to spend all the 

 time and labor necessary for one whole season in 

 cutting off the plants before they appear above 

 the surface. This may be done with a cultivator 

 made with sharp knives that run under the sur- 

 face. It will be necessary to go over the ground 

 regularly at least once a week. If this pest is 

 allowed to produce any foliage it gives the plant 

 a new start. 



