What is the best fungicide for red thread?
The only fungicide available to home gardeners for control of red thread is trifloxystrobin (Provanto Lawn Disease Control). The fungicide can be used all year round except during drought conditions or when the lawn is frozen.
How do you treat red thread in grass?
Feed your lawn a nitrogen rich fertiliser to cure your red thread problem and to prevent it. We recommend our QUICK RELEASE: Spring / Summer – once watered in, this granular feed will set to work on your lawn making it green once again, and red thread free!
How do I permanently get rid of red thread?
To control red thread, fertilize your lawn with high nitrogen, but balanced fertilizer. Red thread occurs more frequently in undernourished turf. When you mow, use a grass catcher and dispose of the grass tips with the fungus.
How much nitrogen does it take to treat red thread?
In lawns with a history of red thread, supple- mental nitrogen fertilizer (0.2 pound of N per 1,000 square feet) in mid- to late spring should reduce disease severity and will promote more rapid turf recovery.
Does overwatering cause red thread?
It may be infected with red thread. Our current wet weather pattern provides prime conditions for fungal diseases to sprout on grass and other plants. Overwatering and light, drizzly rains make diseases more difficult to control. Red thread is a common disease in western Washington lawns.
Will red thread go away on its own?
Often the red thread will go away on its own through general lawn maintenance. But when red thread becomes too pronounced or you are looking for a more immediate treatment, fungicides may be used and have a high success rate.
What does red thread lawn disease look like?
What Does Red Thread Lawn Disease Look Like? Symptoms are often visible from the street as circular patches of tan or pink grass about 4-8 inches in diameter. Upon closer inspection, the sclerotia are easily visible, appearing like small, red threads protruding out of the grass blades, especially near the tip.
Can grass recover from fungus?
In most instances the grass will recover, but it may take two to three weeks. The fungal inoculum will persist indefinitely in the soil, and there is no way to eliminate it from a lawn. The fungus likes extended periods of wetness, so don’t water in the evening as water on the leaves will last through the night.
What causes fungus in fescue?
Prolonged wetness from dew, rain, nighttime or evening watering, or poor drainage—or any other activity that keeps grass blades wet during weather in which temperatures are above 80 degrees F during the day and 65 degrees F at night—create ideal conditions for developing this serious fungal disease.
When is the best time to treat red thread?
Red thread attacks from May onwards favouring humid and mild weather. Early and late summer temperatures with a dewy grass are ideal though the drying effect of summer on your lawn can disguise the disease leading most people to assume wrongly that the lawn is just suffering from drought as in the image below.
Do you need to treat red thread?
For best results, apply the fungicide when temperatures range between 60 and 75 degrees F. To control red thread, you may need to re-apply, depending on the severity of the outbreak. Like other lawn diseases, red thread will likely leave behind some damaged areas that may need to be patched.
How to control and treat red thread lawn disease?
Making sure the lawn is well fertilized, mowed properly and receives the right amount of water on a weekly basis is the best approach to take when dealing with Red Thread lawn disease. If Red Thread is a problem in your lawn, contact your neighborhood lawn care professional at Spring-Green.
When to fertilize to get rid of red thread?
Since it’s not possible to remove the pathogen nor control the weather, the most effective way to get rid of Red Thread is to address the susceptible host plant. Fertilizing lawns in late spring and early summer will help to provide nitrogen.
What causes red thread fungus on my Grass?
The red thread fungus is able to cause disease at temperatures ranging from 40 to 80°F, but develops most rapidly at approximately 70°F. Red thread affects grass that is growing slowly for any reason: inadequate fertilization, drought stress, cool weather, low light intensity, excessive traffic, or many other pest or environmental stresses.
What to do about red thread on ryegrass?
In most situations, red thread is not sufficiently severe to warrant fungicide treatment. Occasionally, stands of perennial ryegrass on high-value sports fields, institutional grounds, and golf courses may become severely blighted during wet weather. In such cases, fungicide treatment will minimize symptoms.