310 



POMONA COLLEGE JOURNAL OF ENTOMOLOGY 



FEMALE LARVAE AND ADULTS AT SANTA PAULA. 



Because of the overlapping of all stages from the larval form to the 

 adult, I have deemed it necessary to consider these forms together as one. 

 (Fig. 119.) 



Figure 119. 



A lemon showing three broods of mealy bugs, before the fruit dried up. This is 

 somewhat of a remarkable picture, for it shows what may be expected of the mealy bug. 



The fact that most of the eggs are deposited during the early winter 

 months would at once lead us to believe that during the early spring there 

 would be a tremendous hatching of young, and such is the case in normal 

 weather. If the winter is warm the broods appear just as in the summer and 

 there is a constant hatching all of the time. Even during the coldest weather 

 a great many young appear. With the coming of the new growth and young 

 fruit in the spring, come the hoards of newly hatched mealy bugs which 

 settle at once upon the most delicate foliage and around the calyx of the 

 young fruit. It is upon the fruit that the greatest damage is done, for the 

 pests will remain with it until it is killed and drops or until it is ruined as a 

 commercial product. From the time that the foliage begins to harden the 

 mealy bugs seem to decline and during the hot summer months are not notice- 

 able unless the orchard is badly infested. Then beginning with September the 

 adults appear in great numbers and begin to deposit eggs. The young 

 upon hatching exude the lioney dew which causes so much black smut upon 

 the foliage. While there are many individual liroods throughout the year 

 there is always the marl:ed winter season when the numbers of all form.s 



