220 THE MONTHLY BULLETIN. 



The ivy scale, Aspidiotus liederw, has been a serious pest of lemons and oranges 

 in certain parts of San Diego County during the past season. The injury is mainly 

 that caused by the insect feeding directly upon the fruit, the result being a marked 

 distortion from the normal shape, rendering the fruit unfit for marketing. — H. S. 

 Smith. 



Eriosoma lanigera, the woolly aphis of the apple and pear, was found to be 

 exceedingly common in the vicinity of Grass Valley on March 11th, when inspections 

 were made of a number of different pear orchards. A great many of the trees in 

 the orchards of this section are undersized. The foliage of badly infested trees last 

 season looked sickly, and in some cases dropped early, due no doubt, to the woolly 

 aphis on the roots. In digging midway between two rows in an orchard many of 

 the aphids were found ; in fact, it was practically as easy to find them at eight or 

 ten feet from the crown of the trees as in close. The fibrous roots were worse infested 

 in every case. — George P. Weldon. 



A dipterous leaf-miner, probably an Itoniid, was recently found to be working 

 very extensively upon certain varieties of boxwood in a greenhouse at Fresno. 

 On some plants practically every leaf was affected. The plants were said to have 

 been imported from England. — H. S. Smith. 



