CONTENTS. 



The Codling Moth in Montana 185 



Intrc duction 1S5 



Popular Names tS6 



Geographical Distribution and Occurrence in Montana.... t86 



Life Zones in Montana 1S7 



Means by Which the Codling Moth Spreads 189 



The Future of tlie Codling Moth in Montana 191 



Ways by Which the Progress of the Moth may be Delayed 191 



Natural History of the Codling Moth 193 



The Egg 193 



Egg Laying 194 



Incubation of the Egg 195 



The Young Larva ' 195 



The Larva Entering the Fruit 196 



The Fullgrown Larva 197 



The CoccQon and Pupa '. . 197 



Mortality Among the Larvae During Hibernation 19S 



The Moth . . . . .^ 198 



Dates of Appearing of Dififerent Stages 199 



The Food of the Codling Moth 200 



Remedial and Preventive Treatment for the Codling Moth. . 202 



Maintaining a \\'holesome Sentiment * 202 



Enforcing the Horticultural Law 203 



L'se of Second-hand Boxes 203 



Spraying 203 



Arsenical Compounds for use in Spraying 204 



Spraying Machinery and Appliances 205 



\\'hen to Spray 206 



Thoroughness in Spraying 207 



Banding for the Larvae 207 



Apple-tree Planting and Spraying 208 



Clean ulture vs. Clover Crops 209 



Care of the Fruit Store-house 209 



Treatment Required by Old Orchards 210 



The Plum Gouger 211 



Occurrence in ]\Iontana 212 



Geographical Distribution 213 



Extent of Injury Caused by the Plum Gouger 215 



Natural History 216 



Time of Appearance 216 



Egg Laying 216 



