Dealing with Ascochyta Blight

Grow variety with the highest level of ascochyta resistance suitable for your area • Treat all planting seed with a registered fungicide, applied properly • Apply an ascochyta fungicide before the first post- emergent rain event • Monitor the crop 10–14 days after rain • Treat all planting seed with a registered ...

How do you treat Ascochyta leaf blight?
How do I treat blight in my lawn?
What causes Ascochyta leaf blight?
What was determined to be the cause of the blight?
How do you treat leaf blight fungus?
What is blight on lawn?
What does lawn blight look like?
How do you fix leaf blight?
How do you control Pythium blight?

How do you treat Ascochyta leaf blight?

Ascochyta leaf blight can be managed by following good cultural practices that minimize stress in the lawn.

Reduce thatch and promote water penetration through the soil by yearly aerification. ...
Maintain a balanced fertilization program. ...
Try to maintain uniform soil moisture.

How do I treat blight in my lawn?

Treat Pythium Blight

Remove thatch to remove sources of the Pythium fungus and to bring the lawn back to health. Block off the infected area from foot traffic. After mowing or aerating, wipe off your blades and tools and even shoes to prevent further spreading of the fungus.

What causes Ascochyta leaf blight?

Ascochyta leaf blight on lawns is caused by an infection by the fungal pathogen Ascochyta spp. Many grasses are susceptible, but Kentucky bluegrass, tall fescue and perennial ryegrass are the most common victims.

What was determined to be the cause of the blight?

At the time, the science behind the blight was poorly understood, and most believed it was caused by a fungus. During the twentieth century, scientists determined that it was caused by an oomycete (a fungus-like eukaryote) called Phytophthora infestans.

How do you treat leaf blight fungus?

Or you can try a more traditional treatment by spraying with a mild solution of bicarbonate of soda (baking soda), using ½ teaspoon per gallon (2.5 mL. per 4 L.) of water. For those gardeners who have no objection, many all-purpose fungicides are available.

What is blight on lawn?

Lawn blight is a fungal disease that attacks turfgrass, causing circular spots of dead grass to appear in the lawn. ... For example, Pythium blight attacks all turfgrass species, while Fusarium blight infects Kentucky bluegrass and Southern blight occurs in tall fescue and perennial ryegrass.

What does lawn blight look like?

Ascochyta leaf blight cause large irregular patches of turf to quickly turn straw-brown in color and appear dead (Picture 2). From a distance the symptoms resemble drought stress. The difference is that the symptoms of Ascochyta may appear quickly or overnight.

How do you fix leaf blight?

Treatment

Prune or stake plants to improve air circulation and reduce fungal problems.
Make sure to disinfect your pruning shears (one part bleach to 4 parts water) after each cut.
Keep the soil under plants clean and free of garden debris. ...
Drip irrigation and soaker hoses can be used to help keep the foliage dry.

How do you control Pythium blight?

Thatch is removed by vertical mowing and topdressing with sand or soil. A balanced system of turfgrass nutrition is also a key to controlling Pythium blight. Excessive fertilization during hot months, particularly nitrogen applications, can exacerbate disease severity.