156 THE ECONOMIC IMPORTANCE OF ANIMALS 



1. To gardens. Report on cutworm, corn worm, potato 

 beetle, squash bug. 



2. To crops. Boll weevil, chinch bug, plant lice, Hessian fly. 



3. To fruit and forest trees. Codling moth, gypsy moth, 



tussock moth, hickory 

 borer, maple borer, 

 scale insect. 



4. To stored food. 

 Weevils, roach, ant. 



5. To clothes, etc. 

 Clothes moth, roach. 



6. As disease carriers. Flies, mosquitoes, fleas, bedbugs. 



Report, using the above sources of information, on specific 

 ways of combating one pest from each of the above groups. 



Conclusion. What specific harm is done by the above-named 

 insects and how would you go to work to prevent this harm ? 



Problem 132 : To know some forms of animal life that cause 

 disease. 



Materials. Use your Civic Biology, Chap. XV, or any 

 other source of infor- 

 mation. 



Observations. 

 Fill in the accompany- 

 ing chart, giving infor- 

 mation with refer- 

 ence to disease-caus- 

 ing animals, especially 

 hookworm, trichina, 

 and tapeworm. 



Conclusion. 1,. 

 What animals cause 

 disease and what dis- 

 eases do they cause? 



2. How would you 



attempt to cure any three of these diseases? 



3 . How would you attempt to prevent any three of these diseases ? 



