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CITRUS 
Florida 
Florida 
California 
Florida 
California 
Florida 
CITRUS APHID ( Aphis spiraecola Patch) 
J. R. Watson (July 18): Fruit aphids are scarce. 
Infestation of Aphis spiraecola is greatly lessened. 
CITRUS MEALYBUG ( Pseudococcus citri Risso) 
J. R. Watson (July 18): J&ealybugs have "been very common 
on citrus, especially grapefruit. 
Monthly News Letter, Office of Los Angeles Co. Agr. Comr., 
Vol. 12, No. 6 (June 15): There is less mealybug infestation 
in the citrus orchards of Los Angeles County this year than 
ever before since this insect became established as a major 
pest. Heavy and systematic Cryptolaemus liberations last 
year, plus field conditions particularly favorable to thair 
work, and a rapid increase in the new internal parasites 
recently introduced by the University of California, were 
responsible for an exceptionally light carry-over of mealy- 
bugs during the past winter and the. subsequent light in- 
festation this spring, 
CITRUS WHITEFLY ( Dialeurodes citri Ashm. ) 
J. R. Watson (July 18): The citrus whitefly is very 
abundant. Unusually abundant compared with recent years. 
BLACK SCALE ( Saissetia o leae Bern.) 
Monthly News Letter, Office of Los Angeles Co. Agr. Comr., 
Vol. 12, No. 6 (June 15): A survey of the condition of the 
black sculo in citrus groves in Los Angeles County shows this 
scale to be in the hatching period in all sections. Some 
localities are aor; advanced th-r. others in this respect 
and in a few weeks complete hatches will occur on many 
properties. 
CITRUS RUST MITE ( Erioehyes oleivorus As he. ) 
J. R. Watson (July 18): The citrus rust mite is very 
abundant - unusually abundant for July. Following the 
abnormal rains of June, July has had a rainfall of somewhat 
below normal, which probably accounts for the havy infestation. 
