INJURIOUS AND BENEFICIAL INSECTS 



17 



SHADE TREE PESTS 



29 White-marked tussock moth (Notolophus leuco- 

 stigma). Beautiful caterpillars having three black plumes, 

 four yellow or white tufts, a coral red head, and body marked 

 with 'black and yellow, defoliate horse chestnut, elm and other 

 shade trees. The winter is passed in egg masses covered with a 

 white, frothy substance, the caterpillars hatching the latter part 



Fig. 21 White marked tussock moth: a larva; & female pupa; c male pupa; d, e male moth; 

 /female moth; gr same ovipositing; h egg mass; i male cocoous; fc female cocoons, with moths 

 laying eggs— all slightly enlarged (after Howard, U. S. dep't agr , Yearbook 1895) 



of May and spinning up about a month later, the moths appearing 

 in July. Two broods occur about New York city and but one 

 farther north as a rule. 



Treatment: remove and destroy the eggs or spray the foliage 

 of the infested trees with poison. 



