70 THE WJIITK M.\RKi:i) TISSOCK MOTH 



The best remedy of all is to collect and destroy during the fall, 

 winter and early spring the egg masses. These egg masses are 

 easily seen when the leaves are oft the trees and can then readily 

 be scraped oft' and destroyed. Cit}' foresters, in cities where these 

 luxuries are available, have men go over all the trees under their 

 control and scrape oft' these masses with long handled hoes made 

 for the purpose. The egg masses are collected in pails and de- 

 stroyed at some central station. The owner of private property 

 having his trees infested should have them treated in the same way. 



When city authorities have no jurisdiction for this work, public 

 opinion should be aroused and all cooperate to find a means of 

 collecting and destroying these egg masses. Mau}^ cities have se- 

 cured the help of school children, paying them a certain amount for 

 every quart, or for a certain number of egg masses. This action 

 has often proved very successful. Egg masses treated with creo- 

 sote oil and turpentine has given good results in killing the eggs. 

 If the egg masses cannot be collected this treatment should be tried. 



When the eggs are allowed to hatch, non-infested trees, if the 

 limbs do not intertwine, may be protected by banding the trees 

 with some material like cotton batting or tree tanglefoot that will 

 hold the caterpillars until they can be destroyed. Bands of any 

 kind must be watched constantly during the period otherwise they 

 will be of no \alue. If the tree affected is not too large it may be 

 jarrefl, wliich will cause the little "worms" to descend on their 

 silken cords. Not being able to climb back on the silk, the bands 

 on the tree trunk will then prevent their ascent. 



Spraying large trees with arsenicals is more or less impractical, 

 and is very expensive. If the tree is not too large, an arsenical 

 poison like arsenate of lead or paris green may be used at the rate 

 of three pounds of arsenate of lead powder, or one and one-half 

 pounds of Paris green to fifty gallons of water. The smaller the 

 caterpillar when the spraying is done the better will be the results 

 from spraying. 



COOPERATION. 



In controlling the Tussock Moth it is necessary, therefore, to 

 cooperate with your neighbor in — 



1. Destroying the egg masses, either by gathering them or 

 wetting them with creosote, 



2. Banding the trees to prevent the ascent of the fallen larvae, 



or. 



3. To spray the infested trees. 



Cooperation in an}- method of control is essential to success. 



