24 THE SAN JOSE SCALE. 
set out some three years ago, the stock having been obtained for the 
most part from the nursery company near Boston already discussed. 
The orchard is located in a protected situation, with trees on three 
sides, and is within 2 miles of the ocean. 
These Massachusetts occurrences are of especial interest, in view of 
their bearing on the probable northward extension of the San Jose 
scale. The facts, taken in connection with others, seem to indicate an 
upward extension of the temperature belt, in which the scale can estab- 
lish itself, to include at least the Connecticut Valley as far north as 
Amherst, and perhaps a coast strip extending somewhat above Boston. 
MARYLAND. 
The occurrence of the San Jose scale has been determined at the 
following points : Neavitt, Chestertown, Biverside, WestEiver, Sharps- 
burg, Frederick, Still Pond, Mullikens, T. B., Charlton Heights, and 
Linkwood. 
Neavitt. — The occurrence at Neavitt, Talbot County, is in an orchard 
of some 14 acres, belonging to J. H. Beip, on an inlet of Chesa- 
peake Bay, and was brought to our attention May 19, 1894. The 
orchard is mainly of peach trees, with some 4 acres of apple, cherry, 
plum, and pear trees. Practically all the trees are infested with the 
scale. The age of the trees is from 1 to 8 years. The source of 
infestation is said to have been trees received from the Missouri 
nursery already referred to^ but as stock was received from other 
nurseries, this conclusion is by no means certain. 
Chestertown. — The occurrence of the scale at Chestertown is in the 
orchards of Mr. Eobert Emory. It was found there in July, 1894, by 
Mr. Marlatt, while making some studies on another pear insect. The 
insect was brought in with some two or three hundred pear trees 
secured from one of the New Jersey nurseries in 1890. From this stock 
the scale has spread to adjoining pear orchards. It is most fortunate 
for the neighboring fruit growers that the owner of this infested stock 
is an exceptionally able and energetic man, and proposes to leave 
nothing undone to exterminate the scale. In the fall of 1894 he, 
unaided, applied an expensive whale oil-soap winter wash to every 
suspected tree, and has now (December, 1895) concluded a second 
treatment, in which he used over 7 barrels of soap. This last treatment 
was for the most part at the rate of 2£ pounds of soap to the gallon of 
water, and, as evidenced by numerous twigs exhibited at the January, 
1896, meeting of the Peninsula Horticultural Society at Denton, Md., 
had resulted in the complete extermination of the scale. Mr. Emory 
deserves the credit for having called original attention to the merits 
of this simple soap wash when used against this particular scale. Its 
general and very great value against scale insects, however, had 
already been established by Comstock in 1880. (Ann. Eept. Dept. 
Agric, 1880, pp. 286, 287.) The year following the planting of the New 
