I follow K&N plan but I use dimension granular early spring since it is easier to apply (no cleaning of tanks, wands, etc), plus I could do year long coverage. Do, early spring (dimension), May (prodiamine), August (prodiamine), and Oct (prodiamine). These dates have to be adjusted for your weather/location.
G-Man you always seem to be very knowledgeable!
I have some POA Annua throughout my lawn which has came in nicely this summer (the grass that is). I am doing a fall overseed of TTTF 3 way mix mid August as I am in Ontario.
My question is, should I use my Tenacity before, after, or when I overseed to kill the POA or attempt at it this year, OR purchase some Prodiamine and apply that in August or is that a product that can be applied before seeding, during, or after?
Thanks alot eh!
Doing an overseed when you have "Poa annua
throughout my lawn" is a challenging endeavor. The conditions you'll be creating to get the new seeds to germinate are exactly
the conditions the Poa annua
seeds in your soil will want, too. Is the overseed strictly necessary, or can encouraging your existing grass through good cultural practices (proper mowing, watering, and fertilizing) be enough to achieve your objectives?
I would think that Poa annua
should be pretty readily identifiable in a TTTF lawn (which is my assumption given your plan for a TTTF overseed), but I see that your profile lists KBG/PRG. What is your current lawn?
Basically, if you have Poa annua
in your existing lawn and want to get rid of it, a multi-season multi-pronged approach is going to be necessary to be successful. What I would suggest is that whenever you see a Poa annua
plant in your lawn, remove it. Personally, I'm a fan of hand-pulling the worst offenders every time I mow. Combining the hand-pulling with pre-emergents and avoiding "germination conditions" have succeeded in getting the Poa annua
under control in our lawn.
For widespread infestations, more drastic measures will be necessary, but if you have had Poa annua
in your lawn within the prior few years, any time that "germination conditions" are created, the Poa annua
seed bank in the soil will result in a new crop of Poa annua
coming up with your desirable grass, too.