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Ascochyta leaf blight1/24/2024 ![]() 2″ of water.Įven when the weather’s not this hot, there’s no way that a small amount of water is enough. One inch divided by 5 means that area is receiving an average of. ![]() Ex: If five tuna cans collect a total of 1″ of water. Run a “normal” cycle, combine the water you collect, then divide by the number of cans you used. ![]() Set out several small, straight-sided cans like cat food or tuna fish cans. Make absolutely sure that whatever method you’re using to irrigate your lawn is delivering enough water, and getting it down evenly and deeply, so none of the grass is being short-changed. To reclaim an ailing lawn or simply keep a lawn healthy throughout the season, start by taking a very hard look at how you’re watering. The following recommendations include the best ways to bring a lawn plagued with ascochyta back to health, but they’re also the very same guidelines that will help lawns avoid ascochyta and many other cultural problems in the first place.Īscochyta infections begin when turf grass is under severe stress, both drought stress and heat stress. Here’s the good news: The ascochyta fungus attacks the leaves of the grass plants… the blades themselves, not the crown of the plant or its roots. But wait! Your lawn can recover from ascochyta! We’ve had guests come to Dick’s Corner at Tagawa’s, and announced that they’re ready to remove their entire lawn and start over because every square inch of turf appears to be dead. In more severe infections, huge patches of the lawn will completely dry out and appear to be gone for good. The weight of the mower simply overwhelms the grass blades that are already struggling to survive, and they go down for the count. It’s not because the mower is spreading the disease. That’s exactly what happened on my lawn, as seen above. Quite often, a lawn mower’s wheels will leave a clear trail of damage when an ascochyta infection is at work. Some of the other blades nearby may still be green, while others look like they’ve already given up completely. That distinctive, straw-colored “pinch” at the top of a blade of grass is hard to miss. Play detective!įrom a distance, several lawn diseases can often appear fairly similar, but with a closer look, ascochyta gives itself away. The ascochyta fungus is always in our soil, but the fungal spores start to run wild when our cool wet spring weather changes to hot, dry conditions, as it did a few weeks ago. ![]() Early- to mid-summer is prime time for this disease, and it can often seem to appear overnight! Ascochyta infections are common when a cool, wet spring shifts to a hot, dry summer. Initially, ascochyta can take on a lot of different looks, starting out as splotchy damage, seen here, then growing into large infestations as shown at the top of the blog. It’s a strange-sounding name for a fungus that’s been bringing a whole lot of people into Dick’s Corner at Tagawa’s, asking for help. Tony Koski, long-time turf specialist at CSU, for providing many of the pictures used here. Here’s the #1 complaint we’ve been seeing at Tagawa’s.Īnd thanks to Dr. But take heart! Tagawa Gardens is here to help you understand why the problems began, and what to do to help your turf fight back. In short, our lawn’s health is pretty much on us. Aside from a few types of grubs, most of the problems we see in our lawns are triggered by their environment … the culture, and the care we give them.
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