tae Pike 
FOREST INSECT INVESTIGATIONS 
F. C. Craighead, Entomologist, in Charge 
The serious situation throughout the longleaf pine belt of eastern Texas 
and Iouisiana, which was first called to our attention last fall, still contin- 
ues. Many alarming reports and strong appeals for assistance have been brought 
to our attention during the summer. It is stated that already over 250,000,000 
feet of mature pine has been lost. Two associations in this District, the South- 
ern Logging Association and the East Texas Mill Managers' Association, have 
adopted resolutions requesting the Secretary of Agriculture to lend aid by es- 
tablishing a forest insect field station in the region in order to make a thorough 
study of the problem. 
In June, 194, J. M. Miller made a survey of the timbered area in the San 
Bernardino Mountains surrounding the Arrowhead Lake district, in souther Cali- 
fornia. This section is one in which summer home development has placed a very ~~ 
high value upon forest cover. Thousands of owners are interested in the protec- 
tion of the trees about summer home sites. ‘The situation has been taken up 
recently by the State Forester under the State law and a zone of infestation de-- 
clared. Under the terms of this law 60 per cent of the owners may organize and 
carry to completion control operations over the entire district. The owners in 
this district contemplate pushing such a project during the coming winter, fol- — 
lowing plans outlined by the Bureau of Entomology. | 

In response to many demands, a Farmers! Bulletin on Lyctus "powder-post" 
beetles and their control has been prepared to take the place of Farmers' Bulle- - 
tin 778, the supply of which has been exhausted for several years. ‘as 
William Middleton and R. A. St. George have returned from Asheville, N.C.,. 
where the southern pine beetle and some other pine bark beetles were studied 
during the summer. 
H. L. Person, assisted by Albert Wagner, has just completed a survey of 
a series of timber-sale areas in national forests in central and northern Cali- 
fornia, to determine the extent to which insects are interfering with the proper 
restocking of these lands with second growth. ‘This study was carried out in 
cooperation with the Forest Service of District 5, which allotted funds for 
travel and field expenses. The losses on several areas on the Shasta National 
Forest were severe, in one case 25 per cent of the trees reserved for increment 
having been killed by the western pine beetle in one season. In the Plumas and 
Lassen National Forests insect losses were negligible on sale areas. Two areas 
in the Sierra National Forest have also shown losses of a serious character in — 
the timber reserved for second cutting. This problem is of considerable impor- 
tance in its relation to the management and marking practices on national for- - 
est lands. 
: Studies of interrelation of insects and fire damage have been made on 
the Northfork areas in California, during the current season. The basis for 
these studies consists of an analysis of the bark-beetle infestation developing 
in and around a burn of 6,000 acres which occurred in 1924. ‘his work is being 
conducted by Messrs. Person, Morrow, and Wagner. 
