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Colorado 
Caustic soda fish-oil soap 1 pound, nicotine sulphate 1 ounce, 
and water 5 gallons gave variable results, but im most cases 
practically ICO per cent kill. Two per cent lubricating- oil 
emulsion and Sun miscible oil (a new type of miscible oil) 1 to 
4-0 gave practically 100 per cent control. In no case did the 
treatments injure foliage. 
C. P. Gillette (June 26): This insect has become rather abund- 
ant in sections of Denver and also in portions of the city of 
Fort Collins, where it is doing very serious damage, especially 
to the American ash, the purple lilac, and the Carolina poplar. 
I have been unable to find the scale upon apple trees or the 
white lilac bushes. The lice hatched this month in Fort Collins 
between the 18th and the 21st. 
GIANT HOOT-BORER ( Prionus laticollis Drury) 
New Mexico W. E. Emery (July 5): This insect is about 50 per cent more 
numerous than last year and in orchards inspected where this 
insect occurs there is from 25 to 50 per cent damage in Dona Ana 
County. 
New York 
Utah 
RED SPIDER (species unknown) 
V. r , H. Hart (June 23): This pest was first noticed in increasing 
numbers on foliage of susceptible varieties- this week. It is 
more abundant on foliage of varieties free from downy covering. 
CLOVER MITE ( Bryobia praetiosa Koch) 
I. II. Hawley (June 15): This mite is common on apples in many 
places, and in a few localities it is causing the leaves to turn 
yellow. 
PEAR 
Delaware 
PEAR PSYLLA ( Psylla pvricola Foerst.) 
J. F. Adams (May 25): In Camden this insect is numerous on pear 
trees. (July 5): In Dover one or more orchards are badly 
infested. 
New York 
New York 
G. E. Smith (July 15): The pear psylla is dangerously abundant 
in a few orchards in Orleans County, but most orchards are fairly 
clean. 
PEAR-LEAF BLISTER -MITE ( Eriophves pyri Pgst.) 
C. C. Wagoner (July 15): In Ulster County these mites are found 
in goodly numbers in several orchards. 
G. E. Smith (July 15): The pear psylla is very abundant in Orleans 
County in orchards near Holley and Medina. Increase is noted over 
the past season. 
