THE BROWN-TAIL MOTH. 317 



about, and coming in contact with the skin of human beings 

 cause the brown-tail rash. 



As a remedy for this rash Kirkland recommends the follow- 

 ing, which should be well shaken together and rubbed thoroughly 

 upon the affected parts : 



Carbolic acid V-i drachm 



2inc oxide J4 ounce 



Lime water 8 ounces 



Methods of Control. 



The best of all remedies against this insect is the destruction 

 of the caterpillars in the winter webs or nests, which can be 

 readily seen at the ends of the twigs throughout the winter. 

 These should be clipped off with a long-handled tree pruner 



Fig. 4. — Tree pruner. 



such as is shown in Figure 4, gathered and burned. The cater- 

 pillars are hibernating in these nests from October to April. 

 It is of no use to cut off the nests and leave them on the ground, 

 as the caterpillars may remain uninjured and in spring crawl 

 back to the trees. 



Spraying with poison is much more effective against this insect 

 than against the gypsy caterpillar. Arsenate of lead at the rate' 

 of three pounds in fifty gallons of water is recommended for 

 the young caterpillars, but this quantity should be increased to 

 five pounds for the large or nearly full-grown caterpillars. 

 Paris green at the rate of one pound in one hundred gallons may 



