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FOREST INSECT INVESTIGATIONS 
¥. C.. Craighead, Senior Entomologist, in Charge - 
Dr. F. C. Craighead spent the early part of August inspecting the 
Forest. Service control work: on the Colorado National Forest, and confer- 
ving with Dr. M. W. Blackman, who is conducting biological studies there 
on the Black Hills beetle.: In the latter part of August he spent a week 
reviewing the work on two projects in the “ew England States -- the white 
Pine weevil and the bronze birch borer. 
William Middleton attended the meetings and field trip of the 
Northeastern Economic Eniomologists, leaving Weshington August 17 and re- 
On July 10 Stanley Garthside, Forest Entomologist, from’ Sydney, 
Australia, arrived in Asheville and ‘spent a few-days at the Bent Creek 
Laboratory to note what entomological investigetive projects were being 
conducted there. Mr. Garthside is:‘traveling under the auspices of the 
Australian Government, and expects to visit. stations in various parts of: 
the United States, Canada, and Burope, before returning to Australia in 
1928. He has just completed some studies at Cornell University, and ex- 
pects to attend the University of Minnesota this fall, to continue his 
studies, : 
On July 14 J. A, Beal, R. B.- Balch, and R. A. St. George, in com- 
eI WIT! ke Korstian, Dr. and Mrs. Hesselman, from Rounania, and 
Dr. R. M. Neison, visited the release cutting poplar plots located at the 
foot of Lookingelass Rock in the Pisgah National Forest. The poplar was 
looking especially promising, as well as the black locust. The latter spe- 
cies was protected by hardwoods for several years, and now occupies the 
upper story and is free from borers. Practically all of the locust ob- 
served growing in the open and not protected by shade is severely damaged 
by locust borers. These observations reaffirm Dr. Craighead's conclusions 
that shade is an inmortant factor in protecting young locust trees from 
injury by borers, ; 
On July 15, 17, and 18 an outbreak of the hickory barkbeetle, 
(Eccoptogaster guedrispinosus) was discovered at Swannanoa, N. C. It has 
been in progress. since the fall of°1925, when severe drought weekened many 
hardwoods and conifers. The outbreak was rapidly increasing in size, and 
if it nad not been checked would undoubtedly have killed all of the hick- 
ories in its vicinity within the next two or three years. 
The southern pine beetle (Dendroctonus frontalis Zimm.) which has: 
been rather inactive since spring, was discovered in numbers in the last 
two or three weelks. 
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