New York AGRICULTURAL EXPrRRIMENT STATION. 327 
FALL SPRAYING WITH SULPHUR WASHES. 
H. E. HopexKiss AND F. A. SIRRINE. 
Following the general plan outlined for former experiments, 
blocks of bearing apple, peach, and plum trees were selected in 
orchards situated in Ontario Co., near Geneva, and in Suffolk Co., 
near Northville. The conditions governing the treated trees were 
similar to those of last year with the exceptions of two orchards 
which received special treatment. Since differences in condition 
have an important bearing on the results, a brief description of 
each orchard is given. 
Orchard I. (T. OC. Maxwell & Bros., Geneva.)—The trees 
selected for treatment were seventy-three Reine Claude plums and 
twenty-five Fitzgerald peaches. The orhard has received very 
careful attention, and at the time of spraying was thrifty and en- 
tirely free from scale. Both varieties were about nine years old 
and had. not been previously fall-sprayed. . 
Orchard II. (H. H. Loomis, Geneva.)—This is kept in clean 
cultivation but otherwise has received no care or previous treat- 
ment for insects. The trees are about twelve years old, and, with 
the exception of a slight infestation by the oyster-shell bark-louse, 
are thrifty and free from scale. 
Orchard TIT. (Thos. Maney, Geneva.)—For the experiment, 
129 Burbank and Reine Claude plums which had shown more or 
less scale injury during the previous year were selected. Both 
varieties are about seven years old and have received good care, 
particularly in the treatment of insects and plant diseases. This 
orchard. was treated for scale in 1903. 
Orchard IV. (T. W. & J. P. Rice, Geneva.)—A portion of this 
orchard comprising 102 Reine Claude and Burbank plums was 
used for a comparative test of the self-boiled lime-sulphur wash 
and various modifications of the kerosene-lime mixtures. The 
trees were about eight years old, vigorous, and with the exception 
of three trees were not seriously infested with the scale. No pre- 
vious treatment for insect pests had been made in this orchard. 
