CHERRY INSECTS 



311 



colonies of wingless females (Fig. 269) which reproduce with 

 wonderful rapidity, so that within a few weeks the tips of the 



new growth and the under side of 

 the leaves are thickly covered 

 with the li(;e. The leaves become 

 curled, the tips of the branches 



Fig. 269. — The cherry aphis, wing- Fig. 270. — The cherry aphis, winged 

 less viviparous female, enlarged. viviparous female, enlarged. 



cease growing and in severe cases the fruit may be attacked and 

 drop. Nursery stock is especially lia})le to be injured. 



Fig. 271, 



,-^\\ (J (I, < hcriy jmr-ci^s' 



ti-.M'.s l)adl:>- inlc.^t'jd witli tUf <Airiiy aphis. 



