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BLACK SCAL2 ( Saissetia oleae E rn, ) 
California Monthly News Letter Los An ] County Horticultural 
Commission, Vol. 1G # No. 1 (April 15): An intensive 
campaign has been carried on by the Los Angeles Sort " I ?-al 
Commissioner's Office duri ■ r for the control 
of black scale on olives in the Sylmar District, The 
purpose of the campigo. has been to protect the citrus 
.properties in that locality ^ni the co rcdal ola 
acreage from infestation fro" rri I aus uncared-for 
olive plantings, 
A r .c nt survey made in the various citrus sections 
of Los Angeles County by Deputy Commissioner H. H# ffilcomb, 
in Charge of Furtigation and Spraying, indicated f r.-^. the 
bl^ck scale will have developed to a point by tharcmiddle 
of April which T ~ill permit the grading of orchards as to 
degree of infestation, '"hile the size of the seal, varies 
iridoly in the different districts, it is felt that inspection 
can start generally in all districts by the 15th of April* 
RED SPIDER (Tetranychus telarius L. ) 
California Monthly News Letter, Los Angeles County Horticultural 
Commission, Volume 10, No. 4, (April 15): Considerable 
dusting of citrus is being done this season for the control 
of red spider throughout the county. 
