EXPERIMENT STATION BULLETINS. 273 



Two samples coutaiued Cichoriain Intijhus (cliickory). 



Two samples contained Brassica nigra (black mustard). 



Two samples contained Cirsium ar cense (Canada thistle). 



Two samples contained Ciiscuta arvcnsls '(dodder). 



Two samples contained Verhena urticifolia (nettled-leaved verbena). 



One sample contained Medicago lupulina (black medick). 



One sample contained Ranunculus hulhosus (bulbous crowfoot). 



One sample contained Ranunculus repens (creeping crowfoot). 



NO VERY EASY WAY TO DESTROY. 



Tlie great mass of farmers and gardeners think to kill a weed by 

 some royal easy process, such as mowing in a certain phase of the 

 moon or a certain definite period in the year or by once or twice culti- 

 vating. After the cultivator he waits until the leaves are several inches 

 high before making the next effort. Such persons will always have the 

 company of a weed after its first introduction into his field or garden. 



To kill countless thousands of weeds coming from seeds, cultivate the 

 ground weekly during the growing season and do not permit the weeds 

 to go to seed, or, if this is too costly, let the weeds have their own way 

 except during the early growth of cultivated crops. Frequent cultiva- 

 tion is necessary to a first class yield. 



TO KILL WEEDS IN A LAWN. 



In case of weeds in a lawn, most of them may be kept in check by 

 enriching the ground liberally, enabling the better grasses to thrive by 

 ''driving the weeds to the wall." 



HOW TO DEAL WITH QUACK GRASS. 



The following concerning quack grass, contains points that will apply 

 to many other weeds. 



I have long considered quack grass, Agropyron repens^ the worst weed 

 that vexes the tiller of the soil in Michigan. It is because it holds its 

 own well and spreads whenever there is a chance, and chiefly because 

 the farmer does not recogTiize it until it is scattered far and wide. It 

 is carried by the plow, harrow, and cultivator from one end of the field 

 to the other. To have a farm well seeded to this grass is a calamity to 

 be avoided. 



All that is needed to exterminate a field of quack grass is the right 

 kind of a man who will carefully observe and study the plant, fighting 

 with method and thoKoughness. 



I have killed 100 or more patches and can speak from practical re- 

 sults and success. Plants of this sort cannot gain any if the green 

 leaves are not alloiced to appear. The niourishment stored in the white 

 root stocks underground will aid the plant to send up slender leaves and 

 if these remxiin, the plants gain and recruit, hut if the leaves start 

 underground and are cut off before coming to the light, these white root- 

 stocks are drawn on again to furnish food to start more leaves and 

 thus, in time become exhausted. If convenient, pasture closely for a 

 whole growing season which prevents the production of new thrifty 

 rootstocks then, if the sod be well turned under deep, rolled and har- 



35 



