MONTANA INSECT PESTS, 1955-1956 25 



CONTENTS 



Page 

 INTRODUCTION 3 



RANGELAND GRASSHOPPER RESEARCH 4 



GENERAL FEEDERS 5 



Grasshoppers 5 



195 5 season 5 



195 6 season 6 



Other Important Pests 6 



Mormon crickets , 6 



Army cutworms 7 



Blister beetles 7 



Wircworms and false wireworms 7 



A mirid 8 



Earwigs 8 



Crested wheat plant bug 8 



INSECT PESTS IN FIELD CROPS 8 



Small Grains 8 



Corn leaf aphid 8 



Wheat curl mite 9 



English grain aphid 9 



Wheat joint worm 9 



Wheat stem sawfly 10 



Wheat -head army worm 1 



Western wheat aphid '. 10 



Pale western cutworm.- 10 



Corn Insects 10 



Eu ropean corn borer 1 



Corn earworm 1 



Alfalfa and Clover Insects 1 



Alfalfa weevil 1 



Lygus bugs 1 



Clover aphid 1 



Clover seed chalcid 1 



Potato Insects 1 



Colorado potato beetle 1 



Potato psyllid 1 2 



Wireworms 1 2 



Sugar Beet Insects 1 2 



Webworm 1 2 



Flea beetles 1 2 



Insect Pests of Peas and Beans 12 



Seed corn maggot 12 



Bean weevil 1 2 



Flea beetle larvae 13 



