tag:blogger.com,1999:blog-7286908067123639659.post7981653414903727230..comments2024-03-05T02:26:23.754-05:00Comments on Turfgrass disease updates for golf courses: Effects of DMI Fungicides on Bermudagrass Putting GreensAnonymoushttp://www.blogger.com/profile/09513481244872476309noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-7286908067123639659.post-70571697326632903652011-02-21T08:33:01.518-05:002011-02-21T08:33:01.518-05:00Thanks for your comments on the safety of Bayleton...Thanks for your comments on the safety of Bayleton on TifSport collars. I would still be hesitant with the new DMIs until we get a better feel for their safety in that situation.<br /><br />A month separation between DMI and aerification is plenty. At least two weeks is my recommendation.Anonymoushttps://www.blogger.com/profile/01763475100737560909noreply@blogger.comtag:blogger.com,1999:blog-7286908067123639659.post-12116996745696385302011-02-19T10:08:46.002-05:002011-02-19T10:08:46.002-05:00I have used Bayleton on Tifeagle with spray over o...I have used Bayleton on Tifeagle with spray over onto TifSport collars and the effects were no different. This was a spring application for the prevention of Fairy Ring, and seemed to not have many adverse effects on either.<br /><br />You say not to use before/after aerification, what kind of time frame would be safe. We wanted to do Fairy Ring prevention in early May, then core aerification Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7286908067123639659.post-24382723670911638472010-11-11T14:10:54.442-05:002010-11-11T14:10:54.442-05:00Bronzing of the leaves is the most common symptom,...Bronzing of the leaves is the most common symptom, but browning can occur as well. I am not aware of a list of products that are safe for the ultradwarfs. Just pay close attention to the labels, and before using a new product, always ask around to make sure that it is safe.<br /><br />In the disease world, we've seen no problems with fungicides other than the DMIs on ultradwarf greens.Anonymoushttps://www.blogger.com/profile/01763475100737560909noreply@blogger.comtag:blogger.com,1999:blog-7286908067123639659.post-2269503514433682702010-11-11T06:33:37.375-05:002010-11-11T06:33:37.375-05:00Thank you. So the damage from DMI fungicides would...Thank you. So the damage from DMI fungicides would be more of a purpling than a bronze to browning of the leaves?<br /><br />Is there a list of pesticides that are not labeled or a list that are labeled for ultrdwarf bermudagrass greens? Or maybe even a list of pestcides to be careful with since I am sure it takes a lot of time and money to actually change labels for these new grasses.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7286908067123639659.post-17453292750726441222010-11-10T09:49:03.244-05:002010-11-10T09:49:03.244-05:00Injury from DMIs usually appears within a few days...Injury from DMIs usually appears within a few days, but as you said it depends on many factors. I've seen cases where the purpling has shown up weeks later, and this is in research plots where nothing else had been applied. Tebuconazole could be the culprit in your case, but it's hard to say for sure.Anonymoushttps://www.blogger.com/profile/01763475100737560909noreply@blogger.comtag:blogger.com,1999:blog-7286908067123639659.post-6705609621520187782010-11-09T19:01:37.854-05:002010-11-09T19:01:37.854-05:00How long after you spray will you normally start t...How long after you spray will you normally start to see signs of phytotoxicity from DMI's? I am sure it depends on many factors but in general......I have a course that sprayed Sept 4 (tebuconozole) and it was not until nearly two weeks later we began to notice bronzing of the leaves. I was not there when that application was made nor the other fertilizer apps but my first thought was we Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7286908067123639659.post-5306504028446380072009-11-04T16:36:40.104-05:002009-11-04T16:36:40.104-05:00It would definitely make a difference...you'd ...It would definitely make a difference...you'd get half the damage AND half the disease control!<br /><br />This is something we'll continue to work on, but until we know more, your selection of product is more important than the rate.Anonymoushttps://www.blogger.com/profile/01763475100737560909noreply@blogger.comtag:blogger.com,1999:blog-7286908067123639659.post-23996640746431076522009-11-04T15:40:43.538-05:002009-11-04T15:40:43.538-05:00How about using lower rates? Cut them in half. W...How about using lower rates? Cut them in half. Would that make a difference?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7286908067123639659.post-5642371019229174832009-10-27T18:35:39.296-04:002009-10-27T18:35:39.296-04:00I do not have experience with the DMIs on Tifsport...I do not have experience with the DMIs on Tifsport collars. I know that Tifsport tends to be pretty sensitive to growth regulators, so it would likely be a problem. Some of the new, safer DMIs on bentgrass could cause more injury to the collars.Anonymoushttps://www.blogger.com/profile/01763475100737560909noreply@blogger.comtag:blogger.com,1999:blog-7286908067123639659.post-23491306552721781892009-10-27T17:24:07.158-04:002009-10-27T17:24:07.158-04:00Do you have any information about the effects of D...Do you have any information about the effects of DMI's on tifsport collars from overspray on bentgrass greens?Anonymousnoreply@blogger.com