How To Control Crayfish
p. 46 · Read in the full issue
From Our Own Correspondent
Honolulu, May 10.
IP crayfish have been drilling holes in the dykes surrounding your taro patches, get in touch with Dr. Joseph E. Alicata, of the University of Hawaii exneriment station, at Honolulu.
Dr. Alicata has worked out a method of control, by using copper sulohate in the irrigation water. If not watched with vigilance, the crayfish holes cause loss of irrigation water, and, in some cases, the dykes collapse.
A proportion of one pound of copper sulphate to 10,000 pounds of water is suffi cient to control the destructive crayfish.
The crayfish causing havoc in Hawaii were imported by a local resident anxious to improve the diet of his frogs. Then they became a pest for the taro farmers.