USDA Forest Service
 

Pacific Southwest Research Station

 
Pacific Southwest
Research Station

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Albany, CA 94710-0011
(510) 883-8830
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Publications and Products

Research Note

Title: Controlling firetree in Hawaii by injection of Tordon 22K

Author: Walters, Gerald A.; Null, William S.

Date: 1970

Source: Res. Note PSW-RN-217. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p

Station ID: RN-PSW-217

Description: Firetree (Myrica faya) has infested more than 40,000 acres of range and forest lands in Hawaii. If the land is to be planted to more desirable range and timber species, this plant pest must be controlled. In trials on the Hamakua Forest Reserve, island of Hawaii, firetrees were effectively controlled by squirting Tordon 22K into notches cut by machetes. The treatment gave complete canopy kill, and 99 percent control of sprouting. The cost of silvicide to treat each stem was about 5 cents.

Keywords: Myrica faya, Hawaii, weed control, Tordon 22K

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Citation

Walters, Gerald A.; Null, William S.   1970.  Controlling firetree in Hawaii by injection of Tordon 22K.   Res. Note PSW-RN-217. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p.

Last Modified: Nov 20, 2015 10:41:20 AM