Fruit
- Aphids
- Coryneum blight
- Fire blight
- Foliar rusts on leaves of plants
- Grasshoppers
- Raspberry cane borer
- Root weevils
- Solitary bees
- Strawberry pests & diseases
- Tent caterpillars
Garden
- Aster yellows
- Blossom end rot
- Corn earworm
- Flea beetles on vegetables
- Grasshoppers
- Greenhouse whitefly
- Harlequin bugs
- Powdery mildew
- Psyllids
- Slugs
- Spotted cucumber beetle
- Tomato or potato psyllids
- Squash bugs
- Sunspiders
- Tomato bacterial Spot
- Tomato diseases
- Vegetable herbicide damage
- Vegetable seeuling pests
- Viruses in plants
Household/Houseplants
- Ants
- Aphids
- Bed, bat and swallow bugs
- Boxelder bugs
- Clover mites
- Cockroaches
- Earwigs
- European paper wasps
- Flying ants
- Fungus gnats
- Greenhouse whitefly
- Honeybee swarms in houses
- Mealy bugs on houseplants
- Miller moths
- Nuisance bees & wasps
- Root weevils
- Soft brown scale & spider mites on houseplants
- Spiders in the home
- Springtails
- Sunspiders
- Wolf spiders
Landscape
- Ants & landscape plants
- Aphids
- Aster yellows
- Bindweed mites
- European paper wasps
- Foliar rusts on leaves of plants
- Grasshoppers
- Greenhouse whitefly
- Nuisance bees & wasps
- Powdery mildew
- Slime mold
- Solitary bees
- Spider mites
- Tobacco budworm
- Viruses in plants
Lawns & Turf
- Bindweed mites
- Chafer beetle emergence
- Clover mites
- Fairy rings
- Grasshoppers
- Mite damage to lawns
- Mites in turfgrass
- Necrotic ring spot
- Slime mold
- Snow mold on lawns in Colorado
- Springtails
Miscellaneous
- Aphids
- Bees and Colony Collapse Disorder
- Beneficial Insects
- Collapse of the honey bee
- Do Plants Repel Mosquitoes?
- European paper wasps
- Fall clean-up to prevent disease
- Freeze or disease
- Hollyhock rust
- Honeybee swarms in houses
- Horsehair worms
- Horticultural Oils
- Insect overwintering
- IPM & PHC: what are they?
- Mosquitoes and rainstorms and hail, oh my!
- Nuisance bees & wasps
- Pest problems after dry weather
- Slime mold
- Solitary bees
- Spider mites
- Termites in Colorado
- Viruses in plants
- Wolf spiders
- Woollybear caterpillars
Pesticides
- Pesticides: disposal
- Pesticides: natural products
- Pesticides: poisoning & first aid
- Pesticides: safety
- Pesticides: toxicity
- Pesticides: who can use
Trees & Shrubs
- Aphids
- Ash borers
- Ash plant bugs
- Ash sawfly
- Aspen leaf spot
- Bacterial wetwood
- Bark beetles
- Birch leaf miner
- Canker diseases on deciduous trees
- Cooley spruce gall
- Cytospora
- Douglas-fir tussock moth
- Dutch elm disease
- Elm leaf feeding insects
- Emeral Ash Borer in Colorado
- Eriophyid mites
- European Elm Scale
- Fire blight
- Foliar rusts on leaves of plants
- Hawthorne mealybug
- Honeylocust Decline
- Honeylocust plant bug
- Juniper-hawthorn rust
- Kermes scale on oak trees
- Leaf scorch of trees and shrubs
- Marssonina leaf spot
- Mountain pine beetle
- Mountain pine beetle – urban concerns
- Mountain pine beetle versus Ips
- Oak borers
- Oak leaf blister
- Oystershell scale
- Piñon decline
- Piñon pine “pitch mass” borer
- Poplar twiggall fly
- Powdery mildew
- Raspberry cane borer
- Root weevils
- Rose cane borer
- Rose diseases
- Rose insect pests
- Sawfly on evergreens
- Scale insects on pines
- Thousand cankers disease (TCD) on walnuts
- Sycamore anthracnose
- Tent caterpillars
- Tree borers
- Twig beetles
- Verticillium wilt of catalpa and other trees
- Viruses in plants
- What’s that foamy ooze from my willow trees?
- White pine weevil
- Zimmerman pine moth