EEMEDIES. 9 



This species is of equal interest witl; the saddle-back caterpillar, 

 with which it has been compared in previous pages, not alone on ac- 

 count of its beautj^ in all stages and its habits, but because of the 

 urticating or stinging spines borne by the caterpillars. At the bases 

 of these spines are glands which secrete an irritating fluid similar in 

 its effect to that of nettles. It follows that rough handling of the 

 caterpillars results in the breaking off of the tips of these spines, 

 which enter the skin and release a small drop of the irritating liquid, 

 producing a burning sensation which varies in intensity according to 

 the person exposed. 



BEMEDIES. 



In case only a few rosebushes or young trees are attacked, hand- 

 picking is ample for controlling this insect, the precaution being 

 taken to use a glove, thus avoiding being " stung." Should the cater- 

 pillars occur on several plants, and if a spraying outfit is available 

 which may be used without danger of poisoning to human beings, a 

 spray of Paris green or arsenate of lead may be applied. 



ADDITIONAL COPIES of this publication 

 -Li- may be procured from the Superintend- 

 ent OF Documents, Government Printing 

 Office, Washington, D. C, at 5 cents per copy 



