366 AGRICULTURE OF MAINE). 



and lower skins of the leaf. In the spring a second case (fig. 

 23) is made, which is longer, cylindrical or cigar-shaped, in 

 which the larva pupates. The adult insect which emerges from 

 the pupa during June and July is a small, steel gray moth ex- 

 panding less than ^ an inch. 



REMEDIES. 



This insect can be kept in check by arsenical sprays (Formula 

 6), the first to be applied as soon as the cases are noticed on the 

 opening buds. A second and perhaps a third application may 

 be necessary at intervals of 4 to 7 days on badly infested trees. 



AAA. INSECTS ON OR IN THE FRUIT. 



(Divisions a, b, and c.) 



a. Caterpillars with 3 pairs of thoracic and several abdominal legs. 



1. Full grown caterpillar less than J^ inch long, with an anal 



fork*, mining in the fruit. 



I. Lesser apple worm. Page 367. 



2. Full grown caterpillar nearl}' ^ inch long without an anal 



fork, mining in the fruit, (fig. 40). 



2. Codling Moth. Page 367. 

 Full-grown mottled caterpillar, ji^ inches long eating into 

 the fruit. Mottled fruit caterpillar. Page 345. 



b. Legless maggots or grubs. 



3. Very slender white maggots mining in the flesh of the 



apple leaving brownish tracks. 



3.. Apple maggot or railroad worm. Page 369. 



4. A small white grub mining in the very small windfalls in 



early summer, (fig. 25). 4. Plum curculio. Page 371. 



c. Mature insects with wings and legs. 



4. A gnarled blackish snout beetle with dusky reddish markings, 



puncturing the fruit, (fig. 27). 



4. Plum curculio. Page 371. 



5. A flat yellowish mottled bug with slender beak ; ovipositing 



in and deforming the fruit, (fig. 28). 



5. Tarnished plant bug. Page 374. 



6. A long legged yellowish brown beetle feeding on fruit. 



(fig. 18). Rose chafer. Page 358. 



* The anal fork can only be seen with a high power microscope, the 

 larva being slightly compressed between cover glass and slide. 



