Spring Prodiamine and Fall Renovation

Some of the granular products have a table of month prior to overseed. https://www.domyown.com/msds/007_prodiamine.pdf

4.9lb/ksqft of the 0-0-7 0.37% prodiamine has *** for North and 6 months for transition / south.

Heavy aeration and above normal seed rate is the only thing I could think of doing.

I would aerate now (this weekend) since we had rain and the soil is soft. I would go multiple passes. I would then aerate again a week before seed down.

Prodiamine has a half life and you will be approaching it's end of life. It has a reduce effect as time goes on. I would then also go a little more on the heavy side of seeds qty/ksqft.

Edit:
I just remember into this study by Purdue (Boiler up!). I was wrong. Look at treatment 20, it was at 0.75ia/acre and it still had 89 control in August. https://turf.purdue.edu/report/2011/PDF/15_AGRY_Patton_sequential%20apps.pdf

Therefore aearate a lot and have a backup plan if thing don't go as planned.

I don't understand his recommendation. 3 applications of prodiamine at that rate will exceed the yearly max. I discussed with the grassfactor doing a 3 apps splitting the yearly max, but I haven't tried it.

LCN joined the site, but hasn't posted. I'm not sure if he is reading, but I will ping him. @LawnCareNut . If it is a mistake he should know to fix it or explain the rational. Maybe that coukd be the dimension rate.

:thumbup:

@Pete1313 The lb/M of seed depends on the seeds. TTTF goes at a higher lb rate than kbg. But in agreement, too much seed might cause fungus problems.