Ray,
I use Actinovate from the very beginning on my seedlings - I even add some when I soak down the seed starting mix. I don't use every single time I water (as that would be a waste of product) but I do add some to the water every second or third watering.
Testimonial alert
- year before last, I had a bad experience with 4-5 flats of my seedlings having some damping off problems. Got a bad/old bag of seed starting mix. I'd already been reading about Actinovate, but had never used it before. Actinovate reversed the damage and about 98% of those seedlings in the flats lived and thrived, even though several already had mild girdling at stem level. I did set aside about 10 control seedlings that didn't get treated (and all eventually died.) Since then, I just use it from the get-go when starting seed, good stuff.
Found out that year it also works wonders on turf.
So anyway, all my seedlings are already inoculated with Actinovate.