3 
of New Jersey is said to date back some four to six years, and resembles 
an “‘irruption” of some 20 years ago. The eggs in New Jersey are 
said to be laid from the 10th to the 20th of January, and the facts al- 
ready recorded are confirmed, that the larva feeds on the roots of plants, 
preferably grass, in light soil, descending below the frost line in winter 
and ascending in spring, transforming to pupa in April or early in May, 
the beetles appearing from May 19 to 27. The length of the larval 
state is not yet ascertained. 
The main portion of the bulletin is occupied by an account of ex- 
periments with different remedies. The arsenites were found to be use- 
less because of their slow action. The copper mixtures were also found 
to be useless. Pyrethrum was found to be ineffective as a killing agent, 
while it is thought to be too expensive to use as a stupefier. The author 
has accepted Colonel Pearson’s statement that no chafers were killed 
by the application of kerosene emulsion, and has conducted no experi- 
ments himself, which is much to be regretted. Kerosene extract of 
pyrethrum was ineffective. Lime was found not to be a reliable remedy 
or preventive. The favorable experiences which we have quoted from 
correspondents in different parts of the country are explained by Pro- 
fessor Smith in the statement that ‘‘Ohio Rose Bugs must lack the 
robust constitution of their New Jersey confréres, or, what is more likely, 
they were not so abundant and had an ample chance at more palatable 
food.” He found that tobacco was ‘eaten with immense relish, both in 
the form of X. O. Dust and finely ground stems.” Acetic acid, quassia 
and digitaline proved failures. Corrosive sublimate acted as a pre- 
ventive, but was found to be too destructive to plant life to enable its 
practical use. The same resulted from the use of muriate of ammonia 
and cyanide of potassium. The odorless insecticides, sludgite, kainit, 
and alum were also failures. His experiments with hot water, however, 
seemed satisfactory. Heated to 125° or higher the beetles were in- 
stantly killed, but great difficulty was found in reaching the insects with 
a sufficiently high temperature. Several forms of an apparatus for col- 
lecting the beetles are figured, and the bagging of grapes is highly 
recommended. The author suggests in conclusion that the farmer 
should, first, prevent the breeding of the insects on his own land by 
using the heaviest land only for grass and keeping as little light land 
as possible in sod, while thorough cultivation in May will destroy many 
of the pupx; second, plant a few rows of blackberries around the 
vineyards to attract the first hordes; a few rose bushes or spirzas will 
answer the same purpose; third, use early or late blooming varieties 
of grapes and stimulate the vines by fertilizers to force: the blossoms, 
and by inducing a heavy bloom get a surplus which will stand some 
thinning by insects. Keep a man with a collector constantly at work 
at least once a day for three weeks. The bulletin is written for the prac- 
tical man and in the most popular style, but it will prove most valuable 
to the fruit growers of the State, and Professor Smith has shown his 
usual energy in his treatment of the subject. 
