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Pythium

Pythium

Symptoms of Pythium blight are evident during warm, humid weather when turfgrass leaves are wet for at least 12 hours. The disease is particularly severe when daytime temperature exceed 82 degrees F and night temperature fail to fall below 68 degrees F. Initial symptoms appear as dark green to purple water-soaked leaves that aggregate into circular or irregularly shaped patches in turfgrass. Patches of infected grass can enlarge causing severe damage to lawns.

Red Thread

Red Thread

Red thread disease is a fungal infection found on lawns. It is caused by the corticioid fungus and has two separate stages. The stage that gives the infection its name is characterized by very thin, red, needle-like strands extending from the grass blade. These are stromata, which can remain viable in soil for two years. After germinating, the stromata infect grass leaf blades through their stomata. The other stage is visible as small, pink, cotton wool-like mycelium, found where the blades meet. The first signs of infection are small irregular patches of brown/yellowing grass. As the infection spreads, the small patches will join to form large brown areas.
Rust Spot

Rust Spot

The rusts are amongst the most common fungal diseases of garden plants. Trees, shrubs, herbaceous and bedding plants, grasses, bulbs, fruit and vegetables can all be affected. Rust diseases are unsightly and often reduce plant vigor. In extreme cases, rust infection can even kill the plant.
Scale

Scale

There are many different varieties of scale. Scale resembles bumpy bark or fine ash on branches of trees and shrubs. Wherever they feed, they cause a reddening of tissue, usually several times the diameter of the scale. The removal of sap by thousands of scales is what causes the damage.
Shothole

Shothole

Shothole disease starts as brown spots on the leaves. As the leaves expand, the brown areas fall out leaving holes scattered over the leaf surface.
Slime Mold

Slime Mold

Slime mold is a broad term describing some organisms that use spores to reproduce. They feed on microorganisms that live in any type of dead plant material. They contribute to the decomposition of dead vegetation, and feed on bacteria, yeasts and fungi.
Snow Mold

Snow Mold

Snow mold is a type of fungus and a turf disease that damages or kills grass after snow melts, typically in late winter. Its damage is usually concentrated in circles three to twelve inches in diameter.
Sooty Mold

Sooty Mold

Sooty mold can be found on a variety of plants. It is caused by any of several fungi that are left on plants by aphids, scale, and other insects that suck sap from the plant. Sooty molds are unsightly, but fairly harmless because they do not attack the leaf directly.
Spider Mites

Spider Mites

Spider mites are among the most serious pests of ornamental plants. They feed on the underside of the leaves by sucking the juice out of the tissue. Because of the small size and the fact that the suck from the underside of the leaves, they are often overlooked until serious damage occurs.
Spittle Bug

Spittle Bug

Spittlebugs cause sporadic damage to warm-season turf grasses. The nymphs feed from inside conspicuous masses of frothy white spittle formed in the turf. Adults are dark colored with two reddish stripes across their back.
Spurge

Spurge

Prostrate Spurge is a summer annual with freely branched hairy stems. It has opposite leaves, usually with a reddish spot. Its presence indicates low calcium, very high potassium, very high magnesium, high sodium, very high chlorine, and low humus levels.
Thistle

Thistle

Thistle is the common name of a group of flowering plants characterized by leaves with sharp prickles on the margins. Prickles often occur all over the plant – on surfaces such as those of the stem and flat parts of leaves. This very stubborn weed if not caught early on could take years to get rid of.
Whitefly

Whitefly

Whiteflies are small hemipterans that typically feed on the undersides of plant leaves. They tap into the phloem of plants, introducing toxic saliva and decreasing the plants’ overall turgor pressure.
Wild Onion

Wild Onion

Wild onions are cool-season perennials with slender, hollow cylindrical leaves. Their presence indicates very low calcium, high magnesium, low humus and a low bacterial count.
Wild Strawberry

Wild Strawberry

Wild Strawberry is a common creeping plant that grows just about anywhere. It can grow up to six inches tall with hairy petioles, leaves split into three leaflets and has teeth on its edges. Creeping plants have runners, or stems, which grow sideways on the surface of the soil. As the runners grow, they send up new strawberry plants. Wild Strawberry usually spread by birds and other animals pooping seeds out in new places.

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