Minnesota 
Kansas 
-183- 
SPRING CANKER WORMS (Pa leacrita vernata Peck) 
R. N. Chapman (May 26): The spring canker worm is abundant 
along the Mississippi River near Port Snelling. 
H. E. Hungerford (Kay: 29): Spring canker worms are defoliating 
elm trees in woodl ands in Douglas County. 
ASH 
ASK SAWPLY ( Tomostethus bardus Say) 
Maryland E. N. Cory (May 20): The ash sawfly occurred in large 
numbers in the vicinity of Riverdale, defoliating practically 
all the ash trees. 
ASH LEAF BUG ( Neoborus illitus Van D . ) 
California E. 0. Essig (May 17): This insect caused leaves of the 
infested trees to turn yellow. 
South Dakota 
Nebraska 
BOXELDER 
BOXSLDIR APHID ( Perrphyllus negundinis 'Thomas) 
A. L. Ford and H, C. Severin (May 20): The boxelder aphid 
is more severe in eastern South Dakota than it has been for 
the past ten years. 
M. H. Swenk (May 13): The boxelder aphid was abundant and 
injurious on boxelder during the first half of May. 
Nebraska 
Nebraska 
A LEAF BEETLE ( Calligra-ph a scalar is Lee.) 
M. H. Swenk (May 13): On April 21 a correspondent reported 
that the elm trees along Elm Creek in Webster County were 
infested with thousands of leaf beetles which were, eating the 
buds and young leaves as fast as they came out. Injury by 
this species occurred in June, 1929, in the same locality, and 
along the Republican River east to Nuckolls County and west to 
Furnas County. 
ELM SCURFY SCALE ( Chionasnis americana Johns.) 
M. H. Swenk (May 13): An unusual number of complaints of 
infestations of white elms by the white elm scale have been 
received. 
