Table 1. — Status of the forest survey. December 31. 1955 



Area Forest area Proportion of job done 



M acres Total Field Type 



■job inventory maps Reports 



Southeast Alaska 11,517 15/^ TiS 10% G% 



Plans for 1956 



1. Publish report on the forest resource of the Juneau timber management 

 unit, 



2. Prepare a type map, at 2 inches to the mile, for the Juneau unit in- 

 sofar as base maps are available, 



3. Complete field plot survey of the Petersburg unit. 



4. Commence both compilation of data and typemapping of the Petersburg 

 unit, 



5. Complete a part of field plot survey of the Sitka unit. 



FOREST INSECTS 



The Black-Headed Budworm Survey 



The black-headed budworm outbreak has been systematically followed by 

 annual fall surveys since 1952, As in previous years forest rangers and 

 other field personnel were relied upon to collect hemlock twigs from 

 which the budworm egg counts were made. 



An unusually wet, cold summer retarded budwonr. development throughout the 

 entire life cycle and this retardation caused such a delay in the egg 

 sampling that some areas had to be passed up as rough weather set in. 



Present statiis 



The heart of. the black-headed budwonn outbreak during 1955 "whs in 

 Excursion Inlet, In this relatively small area on the north side of Icy 

 Strait budworm defoliation was very heavy and top killing is most likely 

 to occur. Defoliation extended from the shore to timberline and was 

 heaviest at the lower elevations up to approximately 1000 feet. The 

 hemlock sawfly was also abundant in this area. On September 21 when 

 examinations were made for budworm eggs, the budworm was mostly in the 

 pupal stage and no eggs were found. Night temperatures were below 

 freezing at that time. 



