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bob_z6

Apple Leaf Health Report 2014

bob_z6
9 years ago

On 9/21/2014 (last day of summer) I took some notes which I'm just getting around to publishing. Since I may spray some fungicide next year (primarily for peaches), I wanted to take notes on how the leaves hold up on their own.

Like all individual reports, it is a tiny sample size and is fairly subjective in any case. In fact, I have 2 Ashmead's Kernels and one had somewhat healthier leaves than the other (B+ vs B). I recorded varieties where I only have a single branch grafted. But I excluded any which were grafted this spring, on the theory that they leaf out later than the other trees, with younger leaves, which may have missed some of the early spring infections.

Near pristine (A):
Williams Pride
Old Nonpareil

Very Good (A-):
Pricsilla
Court Pendu Plat
St Edmunds Russet
Sundance
Ross Nonpareil
Red Boskoop
Pomme Gris
Prima?
Grimes Golden

Good (B+):
Holstein
Sweet 16
Liberty
Hudson's Golden Gem
Akane
Erwin Bauer
Roxbury Russet
Kidds Orange Red
Egremont Russet
Mother
Ashmeads Kernal
Sansa
Sieversii Malus #13 (613978)

OK (B):
Ashmeads Kernal
Crimson Crisp
Sieversii Malus #11 (614000)
Scarlet Ohara
Black Oxford
Pitsaston's Pineapple

Not so good (C+ to B-):
Swiss Limbertwig
Goldrush (one C+ and one B-)
Golden Russet
Sandow

Horrible/Defoliated (C and below):
Sweetbough (2 grafts on different ends of the yard, both partially defoliated)
Wynoche Early (very bad CAR)
Winecrisp (may be due to a runted out tree, more than any susceptibility)

Lastly, please excuse the amateurish composite picture (I made it with "Paint"). I took a pic of each level to provide a rough idea of how I graded. But, I am not absolutely positive of the cultivars in each. I left the one I am most uncertain about blank (my guess is that "Good" is Hudson's Golden Gem).

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