-14, ■ ... 
Charge of the Survey in that area. The work was carried out as 
part of a State-wide program of the State Department of 
Agriculture to 1,T ipe out the disease known as fig endosppsis. 
According to University of California authorities, this disease 
is transmitted to the Smyrna type figs by the Blastonhaga 
wasp, necessary to the proper oollinization of this species of 
fig, Un^er the plan of operation .?11 of the overwintering 
or mammc crop figs are to he picked and forwarded hy the growers 
to a central point of sterilization before February 15,1928. The 
emerged wasps will be returned to the owners in vials to be 
released to the profichi crop* This latter crop can then be 
distributed in the commercial orchards in the usual manner, 
While the survey showed a very limited number of caprifig 
• trees in the county, their listing and subsequent proper -handling 
is of the utmost importance- to the success of the disease-control 
campaign, 
WALNUT 
;■ CODLING- MOTH ( Carpocapsa pomonella L, ) 
California Monthly News Letter Los Angeles County Horticultural Commission 
Volume 10, No, 2 (February 15): In several new areas of Los 
Angeles County walnut growers found it necessary to treat for 
the codling-moth for the first time last season. According to 
figures compiled by K, L, Wolff, Deputy Horticultural Commissioner 
of - Los Angeles County, growers in' these new areas sprayed 
724 acres and dusted 89 acres for this pest during 1927, Mr, 
Wolff further states that control results '-"ere comparable to the 
degree of control obtained in the older infested areas of the 
county during previous years. Tray counts on index orchards 
showed the average treated property to have an infestation of 
2,8 per cent, while untreated orchards in the same area averaged 
7.5 per cant, -■ 
CITRUS 
APHIIDAE 
California Monthly Ne TO s Letter Los Angeles County Horticultural Commission 
Volume 10, No. 2 (February 15): Citrus aphidfe are getting an 
early start in many parts of the county according to reports 
of Los Angeles County district horticultural inspectors, and 
will bear careful watching* They are damaging new growth by 
their attack almost as soon as the buds break. The attack at present 
seems to be confined to the south and east or warmer sides of the 
trees. New fruit wood in many cases is either killed in the 
initial stage or so weakened that it can not support the normal 
bloom. Failure to set a crop may often be directly traced to 
neglect in instituting timely control measures against this 
pest. 
