Recommendations for Elimination of Termite Hazards

(Continued from Page 29)

(Kalotermes minor) exposed to a temperature of 125 degrees Fahrenheit in the Laboratory of the Urriversity 9f C-ali; iornia died after one minute of exposure. The period at I25 to 150 degrees which will be necessary to heat the lumber to 125 degries throughout will vary with the condition of the lumberl It is beliEved that two hours per inch thickness of lumber will be sufficient in all cases.

Where kiln-drying is impractical each piece of infe-sted lumber may be inarked with a piece of chalk at the hole made bytfie termites in entering the -l-umber and the infested piec.s may be cut and burned. Unless there are actual hoies in any individual piece of lumber (either open or pluggecl-up by ihe termites) it is safe to say that that piece is not infested.

(j)If lumber piles have been infested by swarming, dry-wood termites indif the swarming season is not yet ovlr, further infestations may be expected. Therefore, as soon as possible after infestation is found, the lumber Diles shoulcl be sprayed with sodium fluosilicate as directed in paragraph 3'(fi. This spraying cannot be expected P qU ier-itei already in the lumber, but it will be effective in preventing further infestation.

(k) Make periodic inspections. These should be quite frequent durin!' the swarming season of Kalotermes. If "flying ants" a-re seen in the vicinity of the lumber piles,

Max Cook On Field Trip

Max E. Cook, Farmstead Engineer, head of the Agricultural Department of the California Redwood Association, San Francisco, left his headquarters November 3 for a five weeks' field trip calling on lumber dealers in Southern California. in the interests of the Association's Agricultural Service.

.: trace them to their source and see that the source is determited.

Mr. Cook attended the annual convention of the California Retail lumbermen's Association at Pasadena, November 6 to 8, and his work rvill include a trip through the Imperial Valley territory. He expects to return to San Francisco December 8.

A knowledge of termite habits, periodic inspections, -and the elimination of breeding-places will reduce termite hazards to a minimum and will at the same time point the way to good house\eeping which isturn reduces both dry-rot and fire hazards.

*Personnel of Lumber SubCommittee: A. C. Horner, Chairman, National Lumber Mfrs. Assn., 500 Call Bldg.' San Francisco; E. E. Bowe, National Lumber Mfrs. Assn-, 910 Architects Bldg., Los Angeles; R. F. Hammatt, California Redwood Assn ; 24 California St., San Francisco; J. Walter Kelly, Chas. R. McCormick Lumber Co., 215 Market St., San Francisco; B. F. Scott, California White & Sugar Pine Assn., 600 Call Bldg., San Francisco; M- Kline, Union Lumber Co., Crocker Bldg., San Francisco; W. H. Scales, National Lumber Mfrs. Assn-, 601 Interstate Bank Bldg., New Orleans; H.W. Gustafson, Coos Bay Lumber Co., Balfour Bldg., San Francisco; J. Farley-, P-a-ci[9 Lumber Co., 311 CaliTornia St., San Francisco; C. W. Zimmerman, West Coast Lumbermen's Assn., 500 Call-Bl4g., S-11 Francisco; C. L.Hill, California Experimental Station,-322 Giannini Hall, University of California, Berkeley, Calif.

Mark Caiipbell Visits San Francisco

Mark D. Campbell, sales manager of the rail department of the Chas. R. McCormick Lumber Company, Portland, was in San Francisco November 8 to 12, conferring with executives at the home office.

While there Mr. Campbell was able to spend some time with his son Floyd, rvho is attending Stanford University.

Small Fire In San Francisco

Quick rvork on the part of the firemen held damage down to $500 in a fire at the plant of the Wayne Milhvork & Lumber Co.. San Francisco, November 13.