California 
FRUIT INSECTS 
GEFEPAL 
RED SPIDERS ( Tetranychus spp. ) 
Weekly News Letter, State of California, Vol. 6, Ho. 19 (September 
20): A conference on r3d spiier control was held -under the aus- 
pices of the California State Department of Agriculture during the 
past month. Approximately two hundred persons attended the con- 
ference. 
Pennsylvan ia 
Massachusetts 
Ohio 
Massachusetts 
Pennsylvania 
Utah 
Pennsylvania 
APPLE 
BED- HUMPED CATERPILLAR (S chizura c oncinna 3. & A. ) 
S. ¥. Frost (Saptemter): This late-feeding caterpillar, along 
with others, has "been found numerous in some orchards. 
APPLE AM) THORH SKELETOHIZER (H emerophila p ariana Clerck) 
A. I. Bourne (September 26): The last brood of this insect was of 
very little importance. The spread throughout the southeastern 
section of the State has been more extensive than elsewhere, some 
orchards showing considerable injury. 
APPLE. LE4F-MTNER ( ffiscfreria ma lifoliella Clemens) 
E. W. Mendenhall . (August 29): Apple stock in the nurseries in 
southwestern Ohio is bad] y infested with the apple leaf -miner. 
CODLING MOTH ( Carpocapsa pomonel la L. ) 
a. I. Bourne (September 26): Considerable side- worm injury in Wor- 
cester and Middlesex Counties. Indications are that injury is due 
to late hatching first-brood caterpillars. 
YELLOW- IffiCKED CATERPILLAR ( Eat ana minis tra Drury) 
S. W. Frost (September): This species appears even in orchards 
receiving four to five sprat's. 
C-REEH APPLE APHID (Aphis pomi DeG. ) 
Geo. F. Khowlton (September 5): Green apple aphids are still 
numerous in apple orchards in Boxelder, Davis, and Cache Counties, 
but not damaging enough to spray. 
APPLE LEAFHOPFER ( Empoasea mali LeB. ) 
S. W. Frost (September): This leafhopper has been noticeably 
abundant during the last two months. 
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