North American Fruit Explorers mailing list at ibiblio

[Lee Reich <leeareich@gmail.com>]

CAR spores travel far so removing cedar trees is of limited use. Quoting from 
my NEW book, Grow Fruit Naturally, 

"Cedar-apple rust disease produces orange spots on leaves and fruits. Because 
cedar-apple rust needs both cedar and apple trees to complete its life cycle, 
the disease is especially prevalent in humid regions where wild cedars 
(Juniperus spp.) abound, such as much of the eastern United States and 
Canada. Susceptible cedars, wild and cultivated, include Juniperus chinensis, 
J.pinchotii, J. silicicola, J. utahensis, and many varieties of J. communis, 
J. virginiana, and J. scopulorum. Disease spores travel for miles in the air, 
so removal of cedar trees may not be a practical means of disease control. 
Instead, prune for good air circulation and plant resistant varieties such as 
‘McIntosh’ and ‘Liberty’, or else spray. Copper or sulfur fungicides give 
reasonable controls and Surround offers suppression, but all must be applied 
early, as leaf buds are opening and before you see any infections. Infections 
occur only early in the season, and there is no further spread of new 
infections from old infections."

With my apple variety descriptions, I also list a number of other varieties 
that are CAR resistant.

Lee

Lee Reich, PhD
Come visit my farmden at http://leereich.blogspot.com/
http://leereich.com/

Books by Lee Reich:
A Northeast Gardener's Year
The Pruning Book
Weedless Gardening
Uncommon Fruits for Every Garden
Landscaping with Fruit
Grow Fruit Naturally

On Apr 30, 2012, at 7:46 AM, Elizabeth Hilborn wrote:

> It has been a bad year for cedar apple rust. This is the first time I 
> have seen my apple trees seriously affected.
> 
> Question- do I prune out infected and drooping new growth/fruit clusters 
> as I would fire blight? It had affected much of the leaves on my Summer 
> King apple, so I am reluctant to remove all affected growth, but I do 
> not know the consequences of inaction for the long-term.
> 
> Betsy Hilborn
> 7a NC
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