130 ELEMENTARY STUDIES IX IXSECT LIFE 



nocturnal in its habits. Unlike many other moths, the 

 codling moth is not attracted to the light. This has been 

 shown many times by experiments with lanterns. ^N'>r 

 is it attracted to baits of any kind. How then can this 

 insect be overcome? Since the codling moth cannot be 

 taken at lights or by traps, the only possible means 

 of destroying it in the adult stage is by keeping the fruit 

 cellars screened in the early spring, so that the emerging 

 moths may be prevented from escaping until they are 

 captured within the cellar and killed. Xo satisfactory 

 way has presented itself for the destruction of the eggs. 

 .V few of the pupa-cases may be found and destroyed, 

 but it appears that the chief and surest remedy lies in 

 attacking the young apple worms. 



Many experiments have shown that spraying is the 

 most effective means of ridding the orchards of the pest. 



First of all and by all means secure a first-class spray- 

 ing-pump. Time and money used in working with a 

 home-made device or cheap spraying-pump is worse than 

 wasted. Get the best spraying-pump the market affords, 

 and your work will be more than repaid. Having se- 

 cured a pump, use a mixture of Paris green in accord- 

 ance with the formula given on page 303. 



The time to sprav is a few davs after the blossoms 



I 



have fallen and before the calyx leaves have begun 

 to close up. (Fig. 105.) The object of the spray is 

 not to water the leaves nor the sides of the apple. The 

 idea in the mind of the sprayer is to fill the little cup 

 at the rose end of the young apple with this fluid. This 

 can be done only while the calyx leaves are yet open. 

 From this you will see that different varieties of apples 

 will require to be sprayed at different times. If 



