Great thread @Tonygreen! I’m loving the thoroughness in which you are tackling these questions...very cool.
I do have a question for you, or the crowd...has anyone noticed that they the application frequency or concentration can effect the pollen output of a certain cultivar? I’ve had some varieties that will fully reverse, no female flowers present, but don’t ever drop any pollen? I use a basic STS formula (readily available on the net) and have always sprayed AT LEAST every other day for the first two weeks....but after having a few cultivars not drop pollen out of the male flowers, I reduced the frequency (by half) and was able to collect actively dropping pollen from a few of the cultivars. Is there a way that over application, either frequency or concentration, can impede pollen production or dispersal?
Best vibes and wishes to you on your endeavors Tony!