CHERRY PESTS 
three of which lie angled to each other 
and join at the front edge of the wing 
near the tip. These flies deposit the eggs 
from which the yellowish-white maggots 
or ‘worms” issue and work in the fruit 
around the pits. This causes a kind of 
rotting and softening of the fruit on one 
side. 
Just when the fruit is entered is not 
known, but the life of the maggot is prob- 
ably about three weeks, and as the ma- 
ture stage is reached about the time the 
fruit is ripe, some idea of the time they 
enter the cherry may be gained. Since 
the larvae remain in the fruit for a short 
time after it is picked they may be dis- 
tributed quite a distance in fruit The 
adults are not strong fliers and can hard- 
ly do more than to spread from tree to 
tree or at the most from orchard to 
orchard. 
Remedies 
No very satisfactory remedy is at 
present known, although a great many 
have been tried. 
Cherry Fruit Sawfly 
Hoplocampa cookei Clarke 
The cherry fruit sawfly is a native of 
California and other Pacific coast states 
and has been known since 1883 in the 
Suisun valley, California. 
Considerable damage to young cherries 
has been done in various sections by the 
larvae of this insect and occasionally, at 
least, control measures may be necessary. 
The presence of the insect may be told 
by the small round holes bored in the 
young green cherries, many of which 
soon drop to the ground. 
The larvae are small, white and aver- 
age about one-fourth of an inch in length. 
The adults are four-winged insects, black 
with brownish or reddish appendages, 
about one-eighth of an inch long. 
Control measures have not been thor- 
oughly perfected but two applications of 
arsenate of lead at the rate of four to 
five pounds to 100 gallons of water, the 
first applicatién to be made shortly be- 
fore the blossoms open and the second 
about 10 days later, have proven effective. 
Fall plowing is also recommended to kill 
the larvae and pupae in the soil while a 
791 
distillate-oil emulsion and nicotine spray 
is recommended to kill adults at time of 
ege laying. 
The insect has been reported as occur- 
ring in the Suisun valley, El Dorado and 
Nevada counties, California, and at Med- 
ford, Oregon, where it is confined to a 
very small area. 
The orchard fruits attacked are cherry 
(sweet and sour), prune, plum, peach and 
apricot (the peach and apricot only occa- 
sionally). 
The females appear about the time the 
Black Tartarian cherries are in bloom. 
The eggs hatch about the time the petals 
fall. 
BE. O. Essie 
Cherry Leaf Beetle 
Galerucella cavicollis 
In September a small, dark red beetle, 
less than one-fourth inch long, may be 
found feeding on the leaves of cherries. 
The antennae and parts of the legs are 
black. It is partial to the wild cherries, 
and also feeds on peach and plum. This 
is the cherry leaf beetle. It may be de- 
stroyed in the fall by spraying with 
arsenate of lead, three to five pounds in 
50 gallons of water. 
H. A. GossarpD 
Cherry Seale 
Eulecanium cerasorum CEI. 
General Appearance 
The full-grown scales are exceedingly 
large, often obtaining a height of three- 
eighihs of an inch, though the average 
is slightly over a quarter of an inch. The 
general shape is hemispherical, and the 
bodies are very irregular and lobed. The 
general color is rich brown, mottled with 
creamy white. The markings are more 
or less regular and constant. The entire 
surface is highly polished and shiny. 
Food Plants . 
This scale works upon the branches of 
cherry and pear trees, collecting in such 
great numbers as to do considerable dam- 
age. 
Control 
Same as for black scale on deciduous 
fruit trees or for the Buropean fruit 
scale. 
E. 0. Essie 
