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FOREST INSECTS 
F. C. Craighead, in Charge 
On February 27 William Middleton, of this Division, and Dr. 
Floyd F. Smith, of the Division of Cereal and Forage Insects, visited 
Leesburg, Va., to demonstrate the fumigation control of the boxwood 
leaf miner, with which they have been experimenting for several years. 
The demonstration was conducted at the request of Mr. Lintner, County 
Agent of Loudoun County, who has succeeded in arousing in that county 
a great deal of interest in boxwood and in the control of the leaf mi- 
ner. ) 
On February 21 R. A. St. George received a report from S. R. 
Broadbent, Supervisor of the Unaka National Forest, with headquarters 
ae Bristol, Tenn., that an outbreak of the southern pine beetle has 
been located along Scioto Creek. The attack of the beetle was made 
last fall, and the overwintering brood was recently discovered. This 
information is of particular interest, since similar attacks in the 
French Broad Division of the Pisgah National Forest and adjoining tracts 
also occurred last fall, and have now resulted in heavy broods of this 
beetle. The trees in both forests along the boundary between western 
North Carolina and eastern Tennessee were probably attacked at about 
the same time. The low temperatures of November 29 and 30, 1929, were 
effective in killing the brood that remained between the bark and the 
wood, but the more developed brood that had penetrated the outer bark 
escaped being affected. Unless zero temperatures are experienced in 
Mech, or excessive rainfall occurs this spring, there is apt to be 
a rather heavy emergence of the beetles early in the summer. 
Contributions from the Gipsy—Moth Laboratory 
T. H. Jones and I. T. Guild, of the Gipsy-Moth Laboratory, at- 
tended a meeting of the Northeastern Forest Research Council, at Spring-~ 
field, Mass., on February 1. 
A large shipment of cocoons of the oriental hag moth, Cnidocampa 
flavescens Walk., reached the Gipsy-Moth Laboratory on February 15. 
The shipment consisted of approximately 779,000 cocoons collected in 
Fuji and Aikawa, Japan, under the direction of T. R. Gardner, of the 
Bureau's Japanese and Asiatic Beetle Investigations. Over 600 Japan- 
ese school children participated in the collecting, and Mr. Gardner 
writes that examination of sample lots of cocoons showed that nearly 
50 per cent contained larvae of the tachinid parasite Chaetexorista 
javana B. & B. It is hoped that the liberation of adults of this par- 
asite made last year in infestations of Cnidocampa flavescens in the 
vicinity of Boston, together with those which it should be possible to 
make this year, will result in its establishment. 
