
          214

Budding on plum stock not a protection from yellows.
Noyes Darling, of New Haven, Conn., under date of Feb. 10, 1846,
in the Cultivator, 1846, p. 141, says that four years ago B.
Sillman, Jr., of New Haven, "procured from Liverpool a considerable
number of young peach and nectarine trees, budded
on plum stocks.  Some of them were put for standards and
others walled upon a board fence.  There had been no peach
trees for twenty years on the ground where these were planted.
They grew well the first season and appeared in perfect health.
The second season some of the peach trees showed symptoms of
yellows, and died the third season.  At the present time,
[Feb. '46] no one of the <s>present</s> trees, either nectarine or
peach is free from disease.  In the garden adjoining that
of Mr. Sillman there were diseased trees standing at the time
the imported trees were planted out.

"The following inferences may perhaps be safely made from
this experiment.

1. Budding on plum stocks is not a security against
the 'yellows'."

2. This conclusion is that as plums do not have yellows
the disease must have started in the peach part, i.e. in
the top and not in the root.
        