-19- 
were found today on Lari x dahurj ca at Rochester. Of several species of 
larch examined last year, this species was the heaviest infested. The 
trees were thoroughly sprayed at the time, but evidently some of the insects 
escaped to feed this year when the leaves start to grow. This insect is 
becoming a serious pest around ^Rochester. 
MAPLE 
GLOOMY SCALE ( C hrysomphalus te nebricosu s Corns t.) 
West Virginia. F. ./. Craig (December 19): The gloomy scale is prevalent on 
red maple in Charleston. I first noticed it three summers ago when we 
received many reports that maple trees were dying, apparently from the at- 
tack of this scale. All trees visited were soft maples. Last summer I 
heard no complaint and judging from the season's growth' on a few trees I 
inferred that the winter of 1933~34 killed a great many of the scales. 
The insect was not eradicated as the twigs sent you indicate. (Det. H. 
Morrison. ) 
North Carolina. Z. P. Metcalf_ (February 15): The gloomy scale seems to be 
more abundant on maple than for the past several years. 
Mississippi. D. W» Grimes (February 22): Gloomy scale is moderately abun- 
dant on maple at Eentonia. 
OAK 
OBSCURE SCALE ( Chrysomphalus obscurus Corns t,) 
Mississippi. C. Lyle (February 23): Medium infestations on oak leaves have 
been reported during the past several weeks from Kosciusko, Meridian, and 
Ocean Springs. 
PINE 
ASTERN PIKE BEETLE ( D endroctonus brevicomi s Lee.) 
California. M. W. Blackman (February 13 ) : J. M. Miller reports that field 
work on the 1934 survey, to locate areas of bark beetle infestations, was 
completed by November 15. The more important timber-producing areas in 
eight national forests extending from central to northeastern California 
were covered. Aggressive infestations of the western pine beetle prevail 
throughout northeastern California, being particularly severe in areas 
where the beetle populations had suffered a setback from the extremely low 
temperatures of December 193 2 * The effect of the high mortality, result- 
ing from the freeze, on the course of the infestation was evident only dur- 
ing the season immediately following, Recovery of the beetle populations 
was evident toward the close of the 1933 season and in '1934 ,_the upward ten- 
dency was continued showing mrrked acceleration in places. One trend ex- 
hibited by current infestations is that of extension of aggressive attacks 
to valuable timber stands that had not suffered severe losses until this 
year. 
