30 THE NATIONAL FOREST MANUAL. 



When a ranger or other Forest officer discovers the work of harm- 

 insect damage- ful insects which are a menace to the Forest, he will 

 ranger's procedure. re port fully by letter to the supervisor. He will also, 

 if practicable, obtain several specimens of the insect and send them 

 securely packed to the supervisor, together with a small section of 

 the part of the tree infested. If the damage is caused by bark 

 beetles, the section should be large enough to show the form of the 

 galleries. 



The supervisor will satisfy himself as to the extent of the attack 

 supervisor's pro- by a personal field inspection, or by a report from 

 cedure. some competent Forest officer, and submit a report in 



triplicate to the district forester. If there is a field agent of the 

 Bureau of Entomology in the district, the matter will be taken up 

 with him through the proper channels. He will, whenever possible, 

 personally investigate the infested area and recommend methods for 

 controlling the attack. 



If there is no field agent of the Bureau of Entomology hi the dis- 

 trict, or if the immediate advice of the Washington office of the 

 bureau is desired, the district forester will add his recommendations 

 to the supervisor's report and forward the original and one carbon of 

 the report to the Forester for transmittal to the branch of forest- 

 insect investigations in the Bureau of Entomology. The Bureau of 

 Entomology will reply in triplicate through the Forester and district 

 forester, each of whom will retain a copy of the reply. The Forester 

 will authorize the necessary action, while the application of the 

 recommendations made by the Bureau of Entomology will be car- 

 ried out under the direction of the district forester. Specimens of 

 insects and their work should be sent by the supervisor directly to 

 the district field agent or to the branch of forest-insect investigations 

 hi the Bureau of Entomology, as the case may be, and should be 

 accompanied by a statement as to the date and place of collection, 

 name of collector, species of tree attacked, and proper reference to 

 the report on the matter. 



In the case of large infestations special arrangements will be made 

 for cooperation. 



THEE DISEASES. 



Studies of tree diseases will ordinarily be made by pathological 



cooperation with ex P ert s of the Bureau of Plant Industry in coopera- 



the Bureau of Plant tion with the Forest Service. They may, however, 



be included in the subjects assigned to men detailed 



to make special investigations or to Forest officers for report. 



Where large blocks of timber are threatened with damage by dis- 

 ease, the same procedure will be followed as out- 

 lined for l 'Insect damage," except that specimens 

 and reports will be referred to the consulting pathologist, if there is 

 one in the district, or, if not, to the office of investigations in forest 

 pathology, Bureau of Plant Industry, Washington, D. C. All speci- 

 mens should be accompanied by a statement as to the date and place 

 of collection, name of collector, name of the tree on which the speci- 

 men was found, and proper reference to the report on the matter. 

 Fleshy fungi, which are likely to decay in transit, should either be 

 thoroughly dried before being sent, or should be* sent in some preserv- 



