Injurious Insects. 19 



Apple (Apple-Magfgfot), continued. 



Remedies. — Immediately destroy all infested fruit, pomace, 

 and apple-waste from the house. If the orchard is in sod, 

 burn the grass under the trees in fall or spring ; if in culti- 

 vation, spade or plow up the soil under the trees in spring. 

 Orchards in sandy soil and with a southern exposure are 

 most affected. 

 Bark-Louse (Mytilaspis pofnorum, Bouch6). — Minute insects 

 feeding upon the tender shoots. Later in the season the 

 insect secretes a scale under which it lives. The old scales 

 become conspicuous on the twigs. 



Preventive.— Pliini unaffected trees. 



Remedies. — Spray with kerosene emulsion, carbolic-acid 

 wash, soda wash, or •oap-and-soda wash, when shoots start. 

 Wash limbs with soap-suds or lye water. Scrape off lice. 

 Blight.— See under Pear in Chapter IV. 



Bud-Moth (Tmetocera ocellana, Pabr.)— A minute insect, 

 destroying the flower-buds of apples, pears, plums, etc. 



Bemedy.— Arsenites applied when the buds begin to swell. 

 and again ten days later. Burn infested leaves in the fall. 

 Caxker-Wobm {Anisopteryx vernata, Peck). — Larva; a "meas- 

 uring worm" an inch long, dark and variously striped, feed- 

 ing upon the leaves. 



Preventive. — Bands smeared with tar or printer's ink, or 

 similar devices, placed about the trunk of the tree to pre- 

 vent the wingless females from climbing. 



Remedies.— Arsenites. Jar the worms into straw, and burn 

 the straw. 

 CoDLiN-MoTH {Carpocapsa pomoneUa, Linn). — Larva, three- 

 fourths inch long, pinkish, feeding in fruit ; two broods. 



Remedies. — Arsenites applied just after the blossoms fall 

 and again ten days or two weeks later. Swine in the 

 orchard. Cloth band about the trunk of the tree, which is 

 examined at intervals of seven to nine days for larvte and 

 chrysalids. 

 Pall Web-Worm {Hyphantria textor, Harris).— Hairy larvae, 

 about an inch long, varying from gray to pale yellow or 

 bluish black, feeding upon the leaves of many trees, feeding 

 in tents or webs. 



jRemedi/.— Destroy by burning the webs, or removing them 

 and crushing the larvae. 



