116 N. H. AGR. EXPERIMENT STATION. [Bulletin 171 



the two-year life cycle, may be in the soil, derived from the pre- 

 vious year's neglected drops. This maj^ not, however, apply to 

 the use of poultry, because the latter, if confined in sufficiently 

 limited space, may find and destroy the pupae in the ground. 



Any apple trees worth the space they occupy should be sprayed. 

 The ordinarj' spraying for codling-moth and for apple diseases 

 is of indirect help in efforts toward control of the maggot because 

 such spraying tends to reduce dropping of the fruit. 



Wild apple trees in the vicinity of the orchard should be grafted 

 over to fruit of value or cut down. Usually they are infested 

 with the maggot, as well as other apple pests, and their presence 

 is a source of constant danger. 



The possible complication that may be offered by adjacent 

 blueberries attacked by the apple maggot remains to be worked 

 out. If such fruit is found infested close by, it should be removed 

 and destroyed. 



With the apple maggot as with other insects the practices of 

 one's neighbors may help or may hinder efforts at control. How- 

 ever, the influence of neighboring places is less with this species 

 than with many others because of the tendency of the flies to 

 remain near the place where they emerged, so long as there are 

 suitable apples in which they may lay their eggs. It is believed 

 ihat the flies seldom travel in numbers a distance of 100 rods. 



If winter fruit shows attack by the maggot on picking it should 

 be disposed of promptly, or placed immediately in cold storage. 

 Sent at once to cold storage it may be expected to keep fairly 

 well. In no case should such apples be allowed to remain in the 

 orchard or barn for a period after picking. Such practice is 

 likely to result in rapid deterioration of the fruit. 



