TABLE OF CONTENTS 



Page 



1 . Weeds in General 9 



Definition 9 



Kinds of Weeds 9 



Losses Caused by Weeds 10 



How Weeds are Scattered 11 



Learn to Know Weeds 12 



2. Individual Weeds: Description and Eradication, Seed, Seed- 



ling and Mature Plant 14 



Quack grass 14 



Slender wheat grass 15 



Yellow foxtail 22 



Green foxtail 23 



Wild oats 23 



Curled dock 28 



Sheep sorrel 29 



Smartweed 36 



Lamb's quarters 36 



Pigw eed 37 



Russian thistle 44 



Corn cockle 45 



White cockle 45 



French weed 50 



Peppergrass 51 



Shepherd's purse 51 



Wild mustard 58 



Yellow trefoil 64 



Sweet clover 64 



Kinghead 65 



Ragweed 65 



Burdock 72 



Canada thistle 73 



Bull thistle 80 



3. Summary 82 



5 



