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Colorado State University

Colorado State University is one of our nation's leading research universities with world-class research in infectious disease, atmospheric science, clean energy technologies, and environmental science. It was founded in 1870 as the Colorado Agricultural College, six years before the Colorado Territory became a state.

Colorado State University, located in Fort Collins, Colorado, is situated on nearly 5,000 acres of land, including the main campus, a foothills campus, an agricultural campus, and a mountain campus (Pingree Park). Colorado State also has 4,600 acres for research centers, Cooperative Extension offices, and Colorado State Forest Service stations.


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Subject Scientific Name Images
acorn and nut weevils Curculio spp. 1
American plum Prunus americana 2
anthracnose Apiognomonia spp. 5
aphid Tetraneura spp. 3
apple flea beetle Altica foliaceae 2
apple maggot Rhagoletis pomonella 1
apple scab Venturia inaequalis 4
Arizona walnut Juglans major 5
ash bead gall mite Aceria fraxini 2
ash borer Podosesia syringae 2
ash yellows phytoplasma Candidatus Phytoplasma fraxini 6
Atlas cedar Cedrus atlantica 1
Austrian pine Pinus nigra 2
bacterial wetwood Enterobacter nimipressuralis 4
banded elm bark beetle Scolytus schevyrewi 9
billbugs Sphenophorus spp. 1
blue horntail woodwasp Sirex cyaneus 4
boxelder Acer negundo 2
boxelder bug Boisea trivittata 3
boxelder gall midge Contarinia negundinis 3
Boxelder pouchgall mite Eriophyes negundi 3
bronze birch borer Agrilus anxius 2
brown felt blight of pines Neopeckia coulteri 4
California pear sawfly Pristiphora abbreviata 6
canker and die back of Siberian Elm Tubercularia ulmea 1
carbon balls Daldinia concentrica 1
cat-faced spider Araneus gemmoides 1
catalpa Catalpa spp. 1
cedar Cedrus spp. 1
cedar bark beetles Phloeosinus spp. 1
chemicals 2
cooley spruce gall adelgid Adelges cooleyi 5
Cory's mistletoe Phoradendron coryae 3
cotton square borer Strymon melinus 1
cottonwood borer Plectrodera scalator 1
crown gall Rhizobium radiobacter 2
currant borer Synanthedon tipuliformis 1
Cytospora cankers Cytospora spp. 2
desert ironwood Olneya tesota 2
drippy blight Lonsdalea quercina 8
Dutch elm disease Ophiostoma ulmi 5
eastern redcedar Juniperus virginiana 2
elm leaf beetle Xanthogaleruca luteola 3
elm leafminer Kaliofenusa ulmi 8
European elm flea weevil Orchestes alni 9
European elm scale Eriococcus spuria 1
European elm scale Gossyparia spuria 3
fall webworm Hyphantria cunea 6
fir broom rust Melampsorella caryophyllacearum 1
fire blight Erwinia amylovora 10
flatheaded borer Poecilonota thureura 3
fox squirrel Sciurus niger 6
frost and winter injury (general) 6
gardens 2
Gynosporanium rusts Gymnosporangium spp. 4
hackberry nipplegall maker Pachypsylla celtidismamma 5
hackberry witches' broom 4
harlequin bug Murgantia histrionica 1
hawthorn leafminer Profenusa canadensis 1
hawthorn mealybug Phenacoccus dearnessi 2
honeylocust leafhopper Macropsis fumipennis 2
honeylocust spider mite Platytetranychus multidigituli 4
imbedded objects 2
ink spot leaf blight Ciborinia whetzelii 3
leaf curl Taphrina communis 2
lightning 3
linden aphid Eucallipterus tiliae 2
locust borer Megacyllene robiniae 3
long-horned beetle Eburia spp. 1
Marssonina blight of poplar Marssonina populi 7
mealy plum aphid Hyalopterus pruni 2
mechanical 7
Melampsora rusts Melampsora spp. 1
monarch butterfly Danaus plexippus 1
Montezuma baldcypress Taxodium mucronatum 2
mountain pine beetle Dendroctonus ponderosae 10
mountain-ash sawfly Pristiphora geniculata 1
mule deer Odocoileus hemionus 2
Mycosphaerella fungi Mycosphaerella spp. 2
nutrient deficiency 2
oyster mushroom Pleurotus ostreatus 1
oystershell scale Lepidosaphes ulmi 1
penitent underwing Catocala piatrix 2
pesticides 5
Phellinus fungus Phellinus pomaceus 1
pine Pinus spp. 1
pine catkin sawflies Xyela spp. 2
pine leaf adelgid Pineus pinifoliae 3
pinyon needle scale Matsucoccus acalyptus 5
pinyon tip moth Dioryctria albovittella 1
plant bug Plagiognathus spp. 2
poplar borer Saperda calcarata 2
poplar budgall mite Eriophyes parapopuli 1
poplar rust Melampsora medusae 2
poplar twiggall fly Hexomyza schineri 3
poplar vagabond aphid Mordvilkoja vagabunda 1
poplar-and-willow borer Cryptorhynchus lapathi 1
powderpost beetles Trogoxylon spp. 2
powdery mildew Sphaerotheca phytoptophila 2
predatory stink bug Podisus placidus 1
Road salt or de-icing salt 2
Rocky Mountain juniper Juniperus scopulorum 1
root problems 1
scarab beetle Phyllophaga falsa 4
Scots pine Pinus sylvestris 2
sheep Ovis aries 3
shepherd's crook leaf and shoot blight Venturia tremulae 1
Siberian elm canker Botryodiplodia hypodermia 1
site selection mistakes 1
sooty mold 4
Southern California walnut Juglans californica 9
sunscald 3
sycamore anthracnose Apiognomonia veneta 2
Thousand Cankers Disease Geosmithia morbida 6
Thyronectria canker Thyronectria austroamericana 10
Trametes wood decay Trametes hirsuta 2
Tubercularia cankers Tubercularia spp. 3
turbinella oak Quercus turbinella 5
tussock moths 1
unknown fungi 5
unknown virus 2
urban planting 8
Verticillium wilts Verticillium spp. 3
walnut catkingall mite Eriophyes neobeevori 4
walnut leafhopper Dikrella readionis 5
walnut twig beetle Pityophthorus juglandis 7
western drywood termite Incisitermes minor 4
western soapberry Sapindus saponaria var. drummondii 6
western tent caterpillar Malacosoma californicum 3
wetwood 1
white heartwood rot Phellinus tremulae 2
whitespotted sawyer Monochamus scutellatus 1
willow leaf gall mite Aculops tetanothrix 1
willow scale Diaspidiotus gigas 1
witches' broom 2
woolly apple aphid Eriosoma lanigerum 2
woolly elm aphid Eriosoma americanum 3

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