2015. MCH flakes. MCH is an anti-aggregation pheromone used to protect trees from attack by the Douglas-fir beetle. Wenatchee, Washington. (23630477478)

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Summary.mw-parser-output table.commons-file-information-table,.mw-parser-output.fileinfotpl-type-information{border:1px solid #a2a9b1;background-color:#f8f9fa;padding:5px;font-size:95%;border-spacing:2px;box-sizing:border-box;margin:0;width:100%}.mw-parser-output table.commons-file-information-table>tbody>tr,.mw-parser-output.fileinfotpl-type-information>tbody>tr{vertical-align:top}.mw-parser-output table.commons-file-information-table>tbody>tr>td,.mw-parser-output table.commons-file-information-table>tbody>tr>th,.mw-parser-output.fileinfotpl-type-information>tbody>tr>td,.mw-parser-output.fileinfotpl-type-information>tbody>tr>th{padding:4px}.mw-parser-output.fileinfo-paramfield{background:#ccf;text-align:right;padding-right:0.4em;width:15%;font-weight:bold}.mw-parser-output.commons-file-information-table+table.commons-file-information-table,.mw-parser-output.commons-file-information-table+div.commons-file-information-table>table{border-top:0;padding-top:0;margin-top:-8px}@media only screen and (max-width:719px){.mw-parser-output table.commons-file-information-table,.mw-parser-output.commons-file-information-table.fileinfotpl-type-information{border-spacing:0;padding:0;word-break:break-word;width:100%!important}.mw-parser-output.commons-file-information-table>tbody,.mw-parser-output.fileinfotpl-type-information>tbody{display:block}.mw-parser-output.commons-file-information-table>tbody>tr>td,.mw-parser-output.commons-file-information-table>tbody>tr>th,.mw-parser-output.fileinfotpl-type-information>tbody>tr>td,.mw-parser-output.fileinfotpl-type-information>tbody>tr>th{padding:0.2em 0.4em;text-align:left;text-align:start}.mw-parser-output.commons-file-information-table>tbody>tr,.mw-parser-output.fileinfotpl-type-information>tbody>tr{display:flex;flex-direction:column}.mw-parser-output.commons-file-information-table+table.commons-file-information-table,.mw-parser-output.commons-file-information-table+div.commons-file-information-table>table{margin-top:-1px}.mw-parser-output.fileinfo-paramfield{box-sizing:border-box;flex:1 0 100%;width:100%}} Description: MCH flakes. MCH is an anti-aggregation pheromone used to protect trees from attack by the Douglas-fir beetle. Photo by: Connie Mehmel Date: May 11, 2015 Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Wenatchee Service Center. Source: Connie Mehmel collection. Wenatchee, Washington. For more information about MCH see: Ross, Darrell W., Kenneth Edward Gibson, and Gary E. Daterman. 2015. Using MCH to protect trees and stands from Douglas-fir beetle infestation. Forest Health Technology Enterprise Team, US Department of Agriculture, Forest Service. www.fs.fed.us/foresthealth/technology/pdfs/MCH_handbook_1.. Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth. Date: 11 May 2015, 14:17. Source: 2015. MCH flakes. MCH is an anti-aggregation pheromone used to protect trees from attack by the Douglas-fir beetle. Wenatchee, Washington.. Author: R6, State & Private Forestry, Forest Health Protection. Camera location47° 26′ 21.91″ N, 120° 20′ 42.2″ W View all coordinates using: OpenStreetMap 47.439419; -120.345056.