Pest Library

Algae, blue-green

Cyanobacteria also known as (blue-green algae, blue-green bacteria, a...

Anthracnose

Anthracnose is caused by Colletotrichum graminicola, a fungus that su...

Bacteria Wilt

Bacterial wilt is an increasing disease of annual bluegrass (Poa annu...

Black Spot

Blackspot disease, Diplocarpon rosae, is a common and serious fungal ...

Brown Blight

Trees and Ornamentals Brown-spot needle blight, caused by Scirrhia ac...

Brown Patch

The symptoms of brown patch vary according to mowing height. In lands...

Copper Spot

Copper spot is a foliar disease of bentgrass, with severest outbreaks...

Damping Off

Damping-off diseases occur as seed rots and blights of seedlings.This...

Dollar Spot

The fungus pathogen causing dollar spot was previously known as Scler...

Fairy Ring

Fairy rings are reported to be caused by many (60) different soil-inh...

Fusarium Patch

Fusarium patch (Michrodochium nivale) is a serious disease of cool se...

Gray Leaf Spot

Gray leaf spot is a foliar disease that affects perennial ryegrass an...

Gray Snowmold

Damage from snow mold fungi usually becomes apparent as the snow melt...

Large Patch

Large patch is a new name for an old disease of warm-season turfgrass...

Melting Out

Leaf spot is one of the most widespread fungus in coolseason turfgras...

Powdery Mildew

Powdery mildews are common on many kinds of plants. Although they may...

Pythium Blight

Pythium blight begins in mature turf as small slimy or greasy looking...

Pythium Root Rot

Pythium root rot is a persistent problem in areas that are poorly dra...

Red Thread

Red thread is a foliar disease that usually occurs on taller mown tur...

Spring Dead Spot

Spring dead spot symptoms appear in circular patches from 6 inches to...

Summer Patch

Summer patch has been showing up on lawns for the last 2-3 weeks. Thi...

Take All Patch

Take-all patch, caused by the fungus Gaeumannomyces graminis var. gra...

Yellow Patch

Yellow patch is a cool-season disease caused by Rhizoctonia cerealis....