148 FARM FRIENDS AND FARM FOES 



3. Did you ever see the fully developed beetles in freshly plowed 

 ground ? At what seasons are they found ? 



4. Collect some of the beetles that fly about during the evenings in 

 May or June. Kill them in a cyanide bottle. Study their structure. 

 How do they differ from grasshoppers ? 



5. When the beetles are thick, try putting a lantern outdoors over a 

 tub of water with a bit of kerosene on top. See how many beetles are 

 killed in this way. Write or tell the story of the life history of the 

 May Beetle. Make some drawings to illustrate the story. 



COTTON BOLL WEEVIL 



1. If you live in a cotton-growing region, find out whether the Boll 

 Weevil is present. If so, learn how long since it first appeared in your 

 locality. 



2. See what stages of the weevils you can find. 



3. Look especially in cotton fields in fall to see whether any of the 

 pests are hibernating there. 



4. Learn what methods of preventing injury by weevils have been 

 adopted by the cotton growers. 



5. Write a little story with this title: What I Know about Boll 

 Weevils. Illustrate it with drawings. 



6. Read the account of the Cotton Boll Weevil in Farmers 1 Bulletin 



344- 



ROSE CHAFER 



1 . At what season do you find the first Rose Chafers ? 



2. What plants do they attack most seriously in your region? 



3. Are there extensive sandy lands near, where the larvae may de- 

 velop ? 



4. Why is it probable that few birds would eat these beetles ? 



OTHER BEETLES 

 Read such of the following references as your teacher directs : 



The Corn Rootworms, Circular 54, U. S. Bureau of Entomology. The 

 Clover Root-borer, Circular 67, U. S. Bureau of Entomology. The Colorado 

 Potato Beetle, Circular 87, U. S. Bureau of Entomology. The Fruit-tree Bark- 

 beetle, Circular 29, U. S. Bureau of Entomology. The Larger Apple-tree 

 Borers, Circular 32, U. S. Bureau of Entomology. 



