96 Agricultural Experiment Station, Ithaca, N. Y. 



der growing leaves or flower l)nds, tying them together w^ith its 

 silken threads, and thus forming fur itself a well protected nest 

 within wdiich its destructive work goes on (Figs. 32 and 36). It 

 does not confine its work to one or two leaves or.'flowers, but 

 seems to delight in devouring a part of a leaf here or one side of a 

 developing flower there. So that nearly every leaf or flower in the 

 opening bud is forced to contribute to the greed^of the little creature, 

 thus greatly increasing its destructiveness. 



It is especially destructive on young trees or nursery stock as 

 it then most often attacks the terminal buds, sometimes burrow- 

 ing down the shoot for two 

 or three inches causing it 

 to die, and thus greatly 

 marring the symmetry of 

 the tree. 



The later work of the 

 caterpillars in the opening 

 leaves has been w^ell de- 

 scribed by Professor Com- 

 stock as follows : 

 I " The larva settles on 

 i one of the more advanced 

 I leaves, of which it cuts 

 the petiole half through 

 either near its base or 

 close to the leaf so that 

 it wilts. Of this half dead 

 leaf it forms a sort of tube 

 b}' rolling the edge of one 



36.-Characteristic nest of the bu 1 moth c-^terpillflr ; gj^j^ morC Or IcSS down and 

 and several of the curious eggs, greatly enlarged, 



laid bv the moth. fastening it with silken 



threads and then lining the inside sparsely with silk. If the leaf 

 which it has selected as its iinal home should become too weak at 

 the place w^here it hns been cut so that there may be danger of its 

 falling to the ground ; then the larva goes to w^ork and either 

 strengthens it with silk which is fastened to the tw^ig and petiole 

 or ties the apical portion of the tube to another leaf or cuts that part 



