l82 INSECT LIFE. 



Note. — ^At one time fruit-growers fought the codlin-moth by collect- 

 ing the larvae and pupae in this way and destroying them. It has been 

 found, however, that a better way is to spray the apple trees just after 

 the blossoms fall with Paris-green-water. By this means the larvae are 

 poisoned before they eat their way into the young fruit. 



9. Examine the cage containing cocoons daily in 

 order to determine the date of emergence of the 

 moths. 



10. There is more than one generation of this in- 

 sect each year. Determine by breeding the number 

 of generations in your locality, and the method of 

 passing the winter. 



11. Write an account of the life history of this 

 insect. 



12. Prepare a set of specimens illustrating the 

 transformations of this species, place them with the 

 Lepidoptera in your collection, and label them as fol- 

 lows : — 



Superfamily Tortricina (Tor-tri-ci'na). 



The Tortricids {Tor'tri-cids). 



Carpocapsa pomonella (Car-po-cap' sa pom-o-nel'la). 



The Codl'.n-moth. 



The Plum-CURCULIO {Field and School Work). — 

 The plum-curculio is the insect that stings immature 

 plums, laying eggs in them, from which hatch grubs, 

 that cause the fruit to fall prematurely. 



This insect also infests the peach, nectarine, apri- 

 cot, and cherry. In the case of the cherry the in- 

 fested fruit does not fall, but ripens with the larvae 

 in it, the larvae being the well-known " worm " of 

 " wormy cherries." 



The study of this insect should begin early in the 

 season, for the eggs are laid in the young fruit. 



