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every tree of these 4 acres is infested with San Jose scale, some of the 
youngest being very thickly infested. The place was in charge of a 
tenant, and accurate information as to the purchase of the several lots 
of trees was not obtained by Mr. Coquillett. The advice given was to 
dig up and burn all the trees on the ten acres and to spray the remaiuder 
three times at intervals of ten days with dilute kerosene emulsion as 
used at Riverside. The owner of the orchard has promised me in cor- 
respondence to carry out this plan. The oldest peach trees have never 
been productive, and many of them have already died, while the bal- 
ance have suffered so severely from the attacks of the scale that it 
seems doubtful whether they will ever recover, even if rid of the pest. 
Careful examinations were made in the surrounding yards and orchards 
by Mr. Coquillett, but the scale was found to be confined to this one 
orchard. I visited this orchard on the 28th of July and found matters 
exactly as represented by Mr. Coquillett. In this orchard the origi- 
nally infested trees do not seem to have come from either of the two 
New Jersey firms, who are, with little doubt, responsible for all the 
other cases mentioned, excepting, possibly, the Florida one; but it is 
interesting to note that the first affected trees introduced, as I am 
informed by the owner, are supposed to have been received from a 
Missouri nurseryman. 
In the third infested locality in Maryland, namely, Chestertown, 
Kent County, comparatively few trees are affected. It was discovered 
in this orchard by Mr. Marlatt, whom I had sent to investigate the 
pear-tree Psylla. He tells me that the owner of the orchard, in 1890, 
purchased between 200 and 300 trees from a New Jersey nurseryman. 
They were poor trees, considered by the dealer as the best of his sec- 
ond-rate trees. They were planted after pruning, and about half of 
them died before spring. The dead ones were replaced by trees iu 
excellent condition, purchased from Ellwanger & Barry, of Rochester, 
N. Y. Across the road he put in later a younger orchard, also from 
Ellwanger & Barry. At the present time about half a dozen of the trees 
in this younger orchard are affected. The year following the planting 
of the New Jersey trees the owner had an emyloye go over the ones 
most affected with a thick whale-oil soap of the consistency of molasses. 
This treatment was perfectly effectual. Mr. Marlatt examined one 
of these trees and found it perfectly clean nearly three years after 
treatment, although standing in the middle of the affected orchard. 
Upon certain of these older trees, curiously enough, the scale seems 
dying out. The trees themselves are in an enfeebled condition, but 
have put out some new growth, and upon this new growth there are no 
scales, while the great majority of the old scales on the older growth 
are dead. The original specimens, which he brought from this orchard, 
contained no living scales. The owner of the orchard is rather preju- 
diced in favor his whale-oil soap treatment, and promises next fall to 
treat most carefully every affected tree. The probabilities are strong, 
