50 
lions of dollars in the vineyards of France, yet in this, its native 
country, it is scarcely looked upon as an obnoxious insect, and in 
Pennsylvania few, if any, grape growers know what the phylloxera 
is. The rose-chafer is the most difficult insect enemy to combat upon 
the grape-vine, but it is seldom that it occurs in alarming numbers. 
There are not more than ten or a dozen insects that need to be con- 
sidered as insect enemies of the grape, and some of these may never 
be met with in the vineyards of Pennsylvania. 
THE ROSE-CHAFER. 
(Macrodactylus sub<pinosus. ) 
The "rose-bug" or "rose-chafer" is well known to most persons. 
It appears about the time when grapes are blooming and feeds upon 
the flowers and later, the young fruit as well as the foliage. It has 
not for many years been known as an enemy of the grape, having 
formerly attacked, more especially the rose, eating into the buds and 
consequently received the name of "rose-bug." It feeds also upon 
the flowers and foliage of other plants as the cherry, blackberry, 
sumach, in fact no green thing is passed by when the rose-chafer ap- 
pears in swarms of thousands as sometimes happens. Not long ago 
a grape grower was alarmed by the presence of this insect in a vine- 
yard of Go acres. The flowering of the vines showed the first promise 
of a good crop of fruit when the rose-chafers visited the vineyard. 
The damage they would do was manifested in one day's operations, 
and men were set to work picking the beetles into buckets contain- 
ing kerosene. In this manner, 15 bushels of insects were picked and 
killed, yet is was impossible to see where any advantage was gained 
by the picking. The supply seemed to be unlimited. It is needless 
to say that the crop of grapes was ruined before the insects com- 
pleted the period of their existence, which closes about the last of 
July, and the grape grower was so discouraged that he was tempted 
to remove his vines and return to agricultural crops. 
This insect operates in a wide range of territory from Canada to 
Tennessee, and westward to Colorado, but seldom in such over- 
whelming numbers as already indicated, except in New 7 Jersey and 
Delaware, where it is particularly destructive. 
Description,. — This insect is a beetle about one-third of an inch 
long, with light brown wing covers and long crooked legs. When eat- 
ing, several of them gather on the same object. They bury their 
heads deep into a rose bud. They are not disturbed by spectators, bu1 
may be easily knocked from plants. It is common to see them in 
pairs in the act of copulating, for before they die, they must lay the 
eggs for the next season's brood. The eggs are laid in ligb.1 land, es- 
pecially sandy land, in the month of July. The larvae soon hatch 
