APPLE INSECTS 49 



Fruit-tree leaf-roller^^ (Archips argyrospila) 

 Order — Lepidoptera 



Eggs laid in small patches on branches of trees 

 in June; larvae hatch next spring and attack buds 

 and roll leaves together and eat into sides of fruit ; 

 pupate in rolled leaves with a flimsy cocoon ; moths 

 appear in June and July and lay eggs in great num- 

 bers on the branches where they remain until the 

 following spring. This insect is exceedingly in- 

 jurious when once established in an orchard. It 

 attacks apples, pears, cherries, and other fruits. 



Control — Spray the trees infested with eggs 

 just before the buds start with a miscible oil,^ i gal- 

 lon to i.S gallons of water. Follow this with ar- 

 senate of lead, 3 pounds to 50 gallons just as soon 

 as the tips of the buds show green, and again before 

 the blossoms open. The spraying should be done 

 thoroughly. 



Apple curculio -^ (AntJwiiomns quadrigibbus) 

 Order — Coleoptera 



Mainly injurious in Central States; eggs laid in 

 fruit while small; larvae feed on tissues of apple 

 for three weeks; pupae formed in apple and after 

 about one week adult beetles emerge. 



Control — Spray with arsenate of lead, 3 pounds 

 to 50 gallons just after petals fall and repeat in 

 ten days; clean up old fences and hedgerows near 

 orchard. 



Trumpet leaf-miner ^^ (Tischeria malifoUella) 

 Order — Lepidoptera. Manual, p. 249 



Fggs laid on leaves ; larvae gnaw through tgg di- 



23 Herrick and Leiby— Cornell Univ. Expt. Stat., Bull. 2,^7- 



24 Crandall— Illinois Expt. Stat., Bull. 98. 



23 Quaintance— U. S. Bu. Ent.. Bull. 68, Pt. III. 

 Jarvis— Conn. (Storrs) Bull. 45. 



