I use Cuprofix Ultra (7 lbs)with Helena Damoil (256 oz) (for 100 gallons of water) with very good effect while things are still dormant. Last year no discernible Fireblight. Remember a little soil damage is irrelevant if Fireblight makes an appearance. (Pay attention to the Cornel model for Fireblight risk.). Of course, I do follow up with Harbour and since Phytophothera is an issue RidomilGoldSL on the roots as per the label. (Plant new trees but soak before hand in Aliette as per the label - best bet is to buy resistant root stock like G-890.). I use another hit of Damoil/Cuprofix and then Pilot 4Es (for those of us with licenses) along with Syllit, Manzate ProStick and even Merivon. Recommend highly you get the Spray Bulletin from your local land grant University - for me it is VPI and they put it out for MD. VA, and WV. Penn State has wonderful folks, like Dr. Kari Peters and of course Cornel is fantastic. (MIchigan and Minnesota are also great.)
1 Like