DEPARTMENT OF ENTOMOLOGY. 



203 



tion showed that more than ninety per cent of the caterpillars 

 present had been killed by this disease. As a resnlt there 

 were few caterpillars crawling along the roads in early June. 



although during previous seasons 

 great numbers were to be seen at 

 that time. There were also com- 

 paratively few moths to be found 

 later, and the egg masses of the 

 next year's brood are correspond- 

 ingly reduced in numbers, al- 

 though there are still enough of 

 these eggs upon the trees to 

 yield a goodly crop of caterpillars 

 next season. 



We tried many experiments 

 with remedies for the American 

 Tent Caterpillar, although but lit- 

 tle new information was brought 

 out. The careful use of a small 

 amount of kerosene, a teaspoonful 

 to a nest, in wetting the silk of 

 the tent, was found a satisfactory 

 way of killing the partially grown 

 caterpillars. But great care is 

 necessary, as, if sufficient kerosene 

 is added to saturate the bark, the 

 tree is injured. If the web away 

 from the bark is lightly dampened 

 the caterpillars come in contact 

 with it as they pass in and out of 

 the nest and are killed. 



One of the most satisfactory 



remedial measures for these tent 



caterpillars that has come to my 



notice related to the removal of the egg masses. In Xewfields, 



N. H., the Village Improvement Society offered the children 



in the' schools ten cents a hundred for all the egg masses or 



Fig. 10 — Leaf of Black Clierry 

 eaten by Forest Tent Caterpil- 

 lar. 



