292 FRUIT INSECTS 



The black, shining winter eggs of the insect are found in the 

 axils of the buds and in the crevices of the bark on the peach, 

 plum, apricot, nectarine and cherry. The eggs hatch in early 

 spring so that the pinkish stem-mothers are nearly full-grown 

 by the time the blossoms open and soon begin to give birth to 

 living young. These forms resemble the stem-mother in form, 

 but are pale yellowish-green and usually have three longitudinal 

 hnes of darker green on the abdomen. A few of the second and 

 nearly all of the third generation acquire wings and fly away 

 to other plants. Among the many summer food-plants the most 

 important are cabbage, 

 cauhflower, radish, turnip 

 and potato, while spinach, 

 cucumber, tomato, egg 

 plant, lettuce and celery 

 are sometimes seriously in- 

 jured. Violets, roses and 

 carnations are particularly .^'''\^'^%~^^'^'Ta''''^"^1!''"m^. 



^ . *^ migrant. Enlarged. Redrawn after Miss 



Hable to infestation when m. a. Palmer, 

 grown under glass. During 



the summer winged forms are produced from time to time 

 as the feeding quarters become crowded. At the approach 

 of cold weather, winged females (Fig. 249) return to the peach, 

 establish themselves along the veins on the underside of the 

 leaves and give birth to true or sexual females. The latter are 

 usually of a pinkish color similar to the stem-mothers of the 

 preceding spring. After pairing with the winged males, they 

 deposit their eggs in the axils of the buds and in crevices of the 

 bark. The insect does not hibernate exclusively in the egg stage, 

 but the wingless forms are frequently able to survive the winter 

 under suitable protection in the vicinity of their herbaceous 

 food-plants. 



The injury to the peach is all done early in the season ; the 

 early broods attack the blossoms and frequently blight them; 



