- - 21 . 1 - 
defolio, t-ed and killed* Most of the. -larger. . trees showed -■■■defoliation ■ only in the 
lower crowns. Some ornamental spruce in. the. Puget .Sound one a were severely- 
damaged. (P, P*. Keen, Bureau of Entomology and P"l ant' Quru ah t in c , . U. S.D. A.) 
■SMALLER EUROPEAH ELM BARK -BEETLE,. — Hew records showing the presence of the 
s nailer. European elm honk hectic show ..increases in the dist.rihti.tion rpnge over 
those cumulative to the end of 19^0. Most of the records one peripheral exten- 
sions, although sane records, notably those in Hew Fork State.,, one. outstanding 
...additions; to the known ■■beetle-infested regions. Recent, collections from areas 
in Hew York Ste.te include areas in Broone and Chenango Counties affected by the 
Butch eln disease. - : •■•;•.• 7 .- ;; ■ g - . 
-Indianapolis, Ind, , hitherto not known to have been infested, after , many 
examinations and considerable efforts to trap these beetles had failed to indi- 
cate their presence, was found to have -a few colonies of the species in one 
: piece of .eln material and is therefore .in the present distribution range* . 
Harford County, Md. , north of Baltimore, was found to have infestations, 
A: heavy infestation was also found in Kent County, Md., on the Eastern Shore. 
'Expansions in the known distribution range in northern Virginia, West 
Virginia, and other States in. the Ohio River Valley show not unexpected margins, 
increases in this -region. (G. W, Collins,- Bureau of Entomology and Plant Quar- 
antine, .-TJ. S., D. A.) 
The smaller European elm bark beetle is becoming more prevalent in the 
watersheds of the Ohio River, where the phloem necrosis . disease of elm is active 
The killing of elms by this virus disease ‘furnishes large amounts of breeding 
material suitable , -for Seolytus , This results in a rapid increase in the num- 
bers of beetle.?'. Columbus, Ohio, offers an. excellent example. The insect was 
first reeprded in, Columbus in 1939,. ,jnv‘ one section of. the city, .At present most 
of the trees killed by : . phlo.cn^. necrosis in all; sections of the city are very 
heavily infested. Other disease areas in Ohio and ajoining States present a 
similar situation. This condition .presents a serious situation- in respect to 
-•the spread of the Dutch elm. disease already found,, in severed localities in 
Ohio, (Dy;. E; Parker, Bureau of Entomology, and Plant Quarantine., U. S, D, A.) 
MODHTAIF HIHE BEETLE. — Surveys conducted. during the past. season show that, 
although infestations of the mountain pine beetle ( Dendroc tonus monticolae . 
Hopk. ) arc present in all white pine stands in the northern Rockies, no devas- 
tating epidemics •pxist at this time. Pot.entiadly dangerous .infestations are 
. present in the Co eur d’Alene, : Kaniksu, and. Clea.rwo.ter Hadionad Forests. The- 
annual, loss of white pine resulting from the attacks of this destructive forest 
enemy have' •averaged approximately 90, 000,000-- board feet, or nearly one-four th 
of the volume cut for lumber. (J. C, Evendon, Bureau of Entomology and Plant 
Quarantine, U, S. D, A. ) 1 , 
A flare-up of the mountain pine beetle in the white pine stands of the 
Washington Cascades wan evident this year. Commercially, .white, pine is not. 
a. valuable species in this area; however, it is of considerable aesthetic 
"Value especially in Mount Rainier Ha,tional Hark, where a pine-beetle-controj. 
program -has been in effect many years. (R, L, Furniss, ■ Bureau of Entomology 
and Plant Quarantine, U, S, D. A, ) . 
