9,-^^ We. .^,, 



XIV MAINE STATE COLLEGE 



GEEMINATION EXPERIMENTS 149-160 



Remarks 152-153 



Moldy seeds 153 



Explanations.. 153-154 



Results of germination tests 155-161 



EXPERIMENTS WITH FORAGE PLANTS 161-169 



Notes on gjrasses and forage plants 162-168 



Remarks 168-169 



INJURIOUS PLANTS 170-187 



The Potato Rot 172-181 



Apple Scab 182-184 



False Flax, or Gold of Pleasure 185-186 



Rib Grass, or English Plantain 187 



INJURIOUS INSECTS 188-237 



Forest Tent Caterpillar 188-241 



The Codling Moth 188-189' 



Various other insects......... 189 



^HE APPLE MAGGOT 190-241 



^ r\! Bibliography , 190-191 



,^jX^^ ^ ' History and distribution 191-195 



Introduction 195-197 



Sketch of work, 1888-9 197-199 



Work in progi*ess 199 



How do the maggots enter the fruit 202 



How long does it take the larvae to mature 202 



Ai-rested development of larvae 203 



Are Trypeta larvae found in windfalls 203-204 



When do the larvae begin to leave the fruit 204 



Transformation of larvae 204-205 



Where do the larvae go to transform 205-206 



Egg laying habits of the fly 206-207 



Eggs and reproductive system... 207 



Nature of the reproductive system 207-209 



Relation of Trypeta to other insects 209 



Insects sometimes mistaken for Trypeta 209-211 



Varieties known to be afiected by Trypeta Pomonella 211-212 



Spread of Trypeta from variety to variety 213-215 



General description 215 



Technical description 215-219 



Life history 219-222 



Remedies 222-223 



Useless methods 223-224 



Preventive measures 224-226 



Direct methods 226-229 



Critical remarks upon the anatomy of Trypeta 229-230 



Critical remarks upon the life history of Trypeta 230-237 



Notes on other iasects 237 



