52 



MISC. PUBLICATION 318, U. S. DEPT. OF AGRICULTURE 



Equipment (judging) : 



1. Twelve samples of injury caused by insects, each sample carrying a 



number. 



2. Twelve specimens of economic insects, each specimen carrying a number. 



3. Twelve samples of insecticides, each sample carrying a number. 



4. Series of placards, each placard carrying a number and the name of a 



particular control practice, such as spraying, dusting, fumigation. 



5. Forms to be filled out by contestants. 





Contest Record Sheet 





Injury sample 



Insect 



Insecticide 



Control practice 



Potato 



Colorado potato 

 beetle. 



Lead arsenate 



Dusting or spraying. 



Procedure (judging) : 



1. Contestants work separately. 



a. Select sample of injury. Write name of host in proper column 



on forms similar to the one preceding. 



b. Identify insect which caused injury and write name (or number) 



in space. 



c. Pick out insecticide used for control, and write its number in space. 

 (I. Pick out control-practice placard and write its number in space. 



MAKE PERMANENT EXHIBIT FOR SCHOOL OR COUNTY AGENT' S OFFICE 



[Twelfth meeting — January] 

 Equipment : 



1. Collections. 



2. Glass-topped boxes for collections. 



3. Material on life cycle of insects. 



4. Mounts to be made up. 

 Procedure : 



1. Select best specimens of representative insects. 



2. Arrange by orders in glass-topped box. 



3. Label insects plainly. 



4. Make mounts of insect in different stages of life cycle and of material 



damaged. 



5. Label material on mounts plainly. 



THINGS TO KNOW ABOUT INSECTS 



Club members should know something about the habits of the 

 insects in their collections, and control of the pests. If a paragraph 

 were written on each insect, this manual would be too large to be 

 practical for the purpose for which it is intended. The key appear- 

 ing on pages 54 and 55 (table 1) will prove helpful in aiding members 

 to obtain the information they need regarding each common insect 

 listed. 



On page 53 is a completed questionnaire (fig. 126) in which cap- 

 ital letters indicate the 10 questions listed. To fill out similar ques- 

 tionnaires, turn to pages 54 and 55, on which appear a list of common 

 insects arranged in alphabetical order. The capital letters appear- 

 ing in table 1 correspond to those appearing in the questionnaire; 

 following each insect name is a series of numbers arranged in col- 

 umns under the capital letters. These numbers refer to like num- 

 bers on pages 55 and 56, which give the answers to the questions. For 

 example, if an alfalfa caterpillar is the insect concerned, and we want 

 to fill out a questionnaire, we turn to table 1, page 54, and find 

 alfalfa caterpillar; then look for column A, which represents the 



