98 | Farmers’ Bulletin 1128. 
THE EUROPEAN PEACH APHIS." 
The European peach aphis (fig. 21) is one of the chief insect pests 
of the peach in certain parts of Europe. In this country it has - 
been found so far-only in New England. It resembles our black 
peach aphis in many details, but the honey tubes are much shorter 
and the coloring is quite different. The gen- 
eral color is a rusty yellow or even a pinkish 
and the wingless form has a row of dark 
brown dots along each side and a large black 
patch on the abdomen. ‘This patch is, how- 
ever, very often broken up into distinct trans- 
verse bands. The young are yellow. 
SEASONAL HISTORY. 
The eggs are laid upon the peach twigs and 
the young stemmothers attack the foliage. 
Wingless and winged forms are produced and 
Fic. 21.—The European peach . = ; 
shisha: Wanaltee fara nai these reach their Maximum number during 
nicle of winged form;c,antenna late spring. During late summer their num- 
of winged form. a, Much en- nner 3 2 
larged; b, c, more enlarged. bers diminish and in the fall wingless eo 
laying forms and winged males are produced. 
THE VARIABLE PEACH APHIS.’ 
The variable peach aphis is a pale yellow or green and black form 
which looks somewhat like the green peach aphis. It occurs in 
California and sometimes severely injures peach trees. Colonies are 
formed on the tender terminal twigs and the leaves are rolled up 
tightly by the attacks of the insects. (Fig. 22.) Such leaves take on 
a reddish tinge and suggest leaf-curl. Inside of the curled leaves, 
however, can be found large numbers of the aphids. 
The life history has not been fully worked out, but the insect is 
found throughout the spring and summer on clematis, which may be 
its normal food plant. 
CURRANT AND GOOSEBERRY APHIDS. 
THE CURRANT APHIS.’ 
The currant aphis is distributed over the entire country and its 
injury, on account of its conspicuousness, is the occasion of much 
complaint. The insect causes the terminal leaves to become much 
distorted, and little pits or pockets are formed on the underside. 
(See fig. 23, 6; fig. 24.) The upper surface of the leaves assumes a 
1 Anuraphis prunicola (Kalt.). 2 Myzus varians Davidson. 3 Myzus ribis (L.). 
. 
