34 MONTANA EXPERIMENT STATION BULLETIN 484 



Cottonwood leaf beetle 18 



Elm leaf curl aphid 18 



Spider mites 18 



Spring cankerworm 19 



A tent caterpillar 19 



Cottony maple scale 19 



Oystershell scale 19 



Birch skeletonizer 19 



Cottonwood-leaf miner 19 



A leaf roller 19 



Carpenterworm 19 



Elm sawfly 20 



Virginia creeper leaf hopper 20 



Rose curculio 20 



Lilac beetle 20 



Conifers 20 



Blue spruce gall aphid 20 



Spruce leaf-tier 20 



Pine leaf scale 20 



DESTRUCTIVE HOUSEHOLD INSECTS 21 



Clover mites 21 



Clothes moths 21 



Silverfish 21 



Dermestids 21 



Termites 21 



Cereal insects 21 



Ants 22 



Flies 22 



Cockroaches 22 



Bed bugs 22 



Powder post beetles 23 



Strawberry root weevils 23 



INSECTS DESTRUCTIVE OF MAN AND ANIMALS 23 



Mosquitoes 23 



Cattle grubs 24 



Cattle lice 24 



Sheep ticks 24 



Horn flies 24 



MISCELLANEOUS 25 



The Goat Weed Beetle Program 25 



Initial introductions 25 



1951 introduction 25 



Survey and redistribution in 1952 26 



Future program 27 



BIENNIAL REPORT OF THE MONTANA STATE APIARIST 



1951 and 1952 28 



Table of American Foul Brood incidence in colonies 



Inspected By the Assistant State Apiarist 1951 30 



1952 31 



