Mancozeb, nova, captan, sulphur
Vines are very mixed, with the Frontenac Gris well ahead of all others. They came through this long, tough winter in great shape and already have many little grape clusters on them. We had a light frost last night, but hopeful there was no damage.
Bought three new Frontenac Gris, and two look good but one hasn't put out any good buds yet. All the Cayuga whites have now died. One de Chaunac looks bad, but a lot of new growth at the base. I need to cut out the Cayuga and put one of the Frontenac in its place.
I did do a lime sulfur dormant spray in April
May 26
Mancozeb, nova, captan, copper
One Frontenac gris continues to look lifeless, though when the tip is clipped it appears green and supple. Still give it some time. The 4 year Frontenac gris plants look fantastic, and we will get a good harvest from them this year.
June 3
Quintec, captan, sulphur
Need to protect the basal shoots on several plants, particularly the De Chaunac that has gotten so weak. May need to use one to replace the trunk. No signs yet of disease. Lighter than normal outlook for the Niagaras, but some vines have good, vigorous growth and grape set.
June 12
Quintec, captan, sulphur
The nortons appear to have some sulfur burn. Examine them after this application to see if this seems to be the case. At any rate, stop using the sulfur.
The Frontenac gris have an insect problem, most likely grape phylloxera. I cut off some of the worst leaves and applied an insecticide dust. The problem does not seem to affect any of the other vines.
June 20
Nova, captan
Grapes looking good. First sighting of a pair of Japanese beetles. Crap. Definitely some sulphur damage on norton grapes. Have to watch that. All three Frontenac Gris are alive. Should have a good harvest on the three mature vines.
August 8
Quintec, captan
Grapes are well into verasion. Seedless varieties are early ripening and some can be picked. The frontenac gris are coming along nicely, with the niagaras still a bit behind.
