Question about timing of 1st Tenacity App....

Kentucky bluegrass, Fescue, Rye and Bent, etc
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northeastlawn
Posts: 1259
Joined: June 1st, 2015, 3:10 pm
Location: S.E. Mass.
Grass Type: KBG
Lawn Size: 1000-3000
Level: Experienced

Question about timing of 1st Tenacity App....

Post by northeastlawn » April 26th, 2021, 9:20 pm

I cut my lawn short yesterday to get rid of some of the old grass and to see what I got for this year. I have a lot of poa-a coming along as usual.

Last year I pulled the poa-a by hand because I wanted to encourage the KBG to spread. This year the KBG looks pretty good, and the poa-a is pretty wide spread even with my pre-m last fall. The poa-a that almost died last year came back this spring, some of it hanging by a thread, but it did come back.

I was thinking of putting Tenacity down at 4oz/ac for my first app, but in the past it has always taken a few apps to bleach the poa-a. It seems that by waiting the 10-14 days to see what bleaches, Im am giving the poa-a time to recover.

I was wondering if I should just go right to the part where I start a schedule of 2oz/ac every week for like 4 weeks.

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