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mixed with them considerable quantities of weed seed and other im- 

 purities, which, scattered on the land, means weedy fields and reduced 

 crops. Many lawns are excessively weedy because of impure seed scattered 

 on them. 



THE INJURY WEEDS DO. 



Indiana farmers are losing many hundreds of thousands of dollars 

 each year because of the weed situation existing in this State. A con- 

 tinuous and strenuous effort to control weeds ought to be made, because — 



1, Vervain. 



2, Mayweed or Dog Fennel. 



3, Catmint. 



4, Night Flowering Catchfly. 



1. They rob crops of plant food and moisture, riants feed as really 

 as do horses or cattle. As growing crops remove plant food from the soil, 

 the farmer must count on the necessity of returning an amount of plant 

 food to the soil at least equal to that removed, if he expects to continue 

 to grow crops abundantly and profitably. Weeds require approximately the 

 same kinds of plant food as do farm crops, and they require them in 

 approximately the same amounts. CTops suffer when weeds use up a 

 large share of plant food. To put this plant food into the soil the farmer 

 expended money, time and labor. Further, an adequate supply of moisture 

 in the soij is indispensable for the successful growipg of crops. Weeds, like 



