Boone County White Corn on Left, And Original Type, From Which it Was Developed by Selection, on Right Weeds

Boone County White Corn on Left, And Original Type, From Which it Was Developed by Selection, on Right Weeds

Fig. 56. Pigweed

Have you ever noticed that some weeds are killed by one particular method, but that this same method may entirely fail to kill other kinds of weeds? If we wish to free our fields of weeds with the greatest ease, we must know the nature of each kind of weed and then attack it in the way in which we can most readily destroy it.

Fig. 57. Wild Carrot