Controlling firetree in Hawaii by injection of Tordon 22K

Gerald A. Walters; William S. Null

Treesearch

Controlling firetree in Hawaii by injection of Tordon 22K

Informally Refereed

Authors:

Gerald A. Walters, William S. Null

Year:

1970

Type:

Research Note

Station:

Pacific Southwest Research Station

Source:

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

Download (PDF 563 KB)

Download (PDF 563 KB): https://research.fs.usda.gov/download/treesearch/30820.pdf

Abstract

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

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