ILLUSTRATIONS 



PLATES. 



Page 



Plate I. Life zones of the United States Frontispiece. 



II. Fig. 1. — Apple leaf inha))ite'l l)v codling-moth larva. Fig. 2. — Apples 



damaged by caterpillar 16 



III. Eggs of the codling moth lt> 



IV. Fig. 1. — Entrance holes of larv;e of second generation. Figs. 2 and 



8. — Views in orchard of Hon. Edgar Wilson 82 



V. Fig. L — Codling moth larva, enlarged about tliree times. Fig. 2. — 

 The "worm hole" or exit hole of the apple worm (enlarged). 

 Fig. 3. — A wormy apple, sliowing the familiar mass of brown i)ar- 

 ti(^les thrown out at the blossom end by the young larva (from 



Slingerland ) 32 



VI. Fig. 1. — i^arvfe, pupa', and moths on rough bark. Fig. 2. — Infested 



apples 1 )eing Duried 48 



Vn. Fig. I. — Codling moth enlarged four times. Fig. 2. — Codling moths 



enlarged twice. Fig. 3. — Codling moths, natural size 48 



VIII. 8tul)S of branches irom an old orchard near Elkton, INId., showing 



work of codling-moth larvic and woodpeckers CA 



IX. View in orchard of Hon. Fremont Wood, near Boise, Idaho (34 



X. Fig. 1. — Band on which the remains of 330 cocoons were counted. 

 Fig. 2. — Puj)a in cocoon on underside of a lof>se piece of bark. 

 Fig. 3. — Larva and pupfc in cracks in bark from which rough l)ark 



has been removed SO 



XL Gasoline power spraying machines 80 



XII. Spraying ( )utlits in use 80 



XIII. Clean and wormy ai^ples from tree No. 2, Wilson orchard 96 



XIV. C/lean and wormy apples from tree No. 4, Wilson orchard 96 



XV. Clean and wormy apples from tree No. 6, Wilson orchard 96 



XVI. Preparing apples for market, orchard of Hon. Fremont Wood, Boise, 



Idaho 96 



TEXT FIGT^RES. 



Fig. I. Anarsia hneatella 21 



2. Plodia interpunctella 22 



3. Larverna herellera : 22 



4. Nephopteryx rubrizonella 23 



5. Daily band record made by H. G. Gibson, Nampa, Idaho, in 1901, 



upon four trees 46 



6. Weekly summary of Mr. Gibson' s Ijand record 47 



7. Band record made by William A. George, Caldwell, Idaho, in 1901. 47 



8. Weekly l)and record made by Mr. Ayres at Boise, Idaho, in 1897, 



on 140 trees • 48 



