From:                   Tim Vaughan <[log in to unmask]>

> Yes, I wondered about that. There are bacterial cankers on things like
> Walnuts, and Fire Blight on Pears and some other Rose family members and
> some others, but even then you don't treat with antibiotics, at least not
> that I've ever heard.

FWIW, Streptomycin is used for fireblight control on apples and
pears, particlulary if there is a hailstorm, which serves to spread
it rapidly. I think there is a maximum number of hours growers have
to get it applied, or new infections will crop up. There is no cure,
once infected, except amputation of the infected part of the trees.
Some growers with a past history of fire blight routinely use it
during bloom.

Dave Green     SC  USA
The Pollination Home Page:  http://pollinator.com

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