Primo and fungicide question - budget Cancel The title field is required!

1. Melvin Waldron

   

   43 posts
   
   9/27/2012 9:09 AM

   After learning so much about Primo this past couple of years along with the 200 growing degree day program. I found myself this past season spraying every 6 to 7 days. What I also found was when doing this spraying, I started relying on some of the older along with some new chemistry such as Thiophanate-methyl and Iprodione at half rates. I also used a lot of Daconil Action and some Ultrex depending on other things I was spraying for (like my Signature applications) at low rates as well, along with my foliar fertilization (at half rates as well). I tended to save the longer lasting products such as Emerald and Vinclozolin for spring (although with the many applications for fairy ring combined with normal fungicide/growth regulator products, I wonder if I needed them then) and fall. While dollar spot has been a problem in the past, I kept it in check all this season, and only thought I saw a spot of brown patch once on a green that probably due to the irrigation heads and location was a good spot to find it.
   
   I think I have developed a good program for now, but wonder if I could do some things to tweak it to save either money or the labor of spraying more often due to the 200 gdd deal. I also wonder if because most of our summer while brutally hot was not as humid as normal and my disease pressure wasn't as bad, so am I setting myself up next year?
   
   I know some around our area have gone away from Primo all together while others are mixing Primo with other growth regulators to get the two weeks out of them. Just curious what others are doing? I will hopefully put pencil to paper and do some math. (Also noticed Bruce Williams just had a good article about cost per day instead of cost per acre in one of the recent magazines) I tend to do a cost per acre a lot of times, are many of you doing cost per day as well?
   
   Located in transition zone on bent grass.
   
   Thanks!
   
   Mel

   
   Melvin H. Waldron III, CGCS, Horton Smith Golf Course, City of Springfield/Greene County MO
   
   
2. Virgil Range

   

   0 posts
   
   10/10/2012 6:10 AM

   Mel,
   
   Im a big fan of Primo however Im not able to use it any more because it been related to Bacteria Decline. Im leaving it out of the program next year and will see the difference if any at all.
   
   VIrgil

   
   
   
   
3. Keith Fellenstein

   

   0 posts
   
   10/10/2012 10:10 AM

   I like cutless for my greens and use it early spring to mid fall. I do use primo in addition to the cutless in the summer. I'll treat with cutless 50W anywhere from 8-12 oz per Acre every two weeks (occassionally higher) and in the summer months I'll use 3-4oz Primo per Acre on the off weeks. This program allows me to mow every other day if I want to, and roll on the other days. Very consistent regulation. I am concerned about the possible connection between primo and bacterial wilt ,so try to minimze my Primo use and rely more on the Cutless. By the way, I use a similiar program in my fairways but with Trimmit and Primo.