1^2 NEW YORK STATE MLSEL'M 



to these, the writer has reared examples of the red-tailed tachina fly, W i n- 

 t h e m i a 4-p u s t u 1 a t a Fabr., a species whicii has frequently rendered most 

 valuable aid in controllins^ the army worm, Ileliophila unipuncta 

 Haw. 



Remedies. Parasites and native birtls will keep this species under con- 

 trol in most cases. The outbreak chronicled in the preceding pages is out 

 of the usual order and may not occur again for years. In such event, 

 spraying the infested trees with one of the arsenical poisons is our best 

 remedial measure. If the application is made before the caterpillars are 

 more than half grown, serious injury to the trees may be averted. Many 

 of the descending caterpillars can be killed by inclosing the trunks of the 

 infested trees with a low overhanging barricade and then treating the 

 collected larvae with hot water, kerosene emulsion or other contact insecti- 

 cide wherever spraying is impracticable. Small trees can be protected by 

 jarring the caterpillars from them, and if sticky bands are placed around 

 the trunk and properly guarded no larvae can ascend to continue their 

 destructive work. 



Bibliography 

 1896 Slingerland, M. V. Corm-ll I'niv. .Agric . Kx]). St;i. liul. 123, p. 509-22 

 1898 Felt, E. P. State Ent. 14th Rep't X. Y. State .Mus. Bill. 23, p. 207-12 



White marked tussock moth 



Hcvicrocampa hiicostigma Abb. and Sm. 



Red headed, yellow and black tiUted caterpillars may frequently be observed in 

 early summer defoliating horse-chestnut, linden, maple, elm and other trees. 



This insect appears to thrive best in cities and villages and some 

 seasons proves a \eritable scourge in certain localities. In Albany ami 

 Troy, the iiorse-chestnuts are usually partly defoliated each spring and 

 occasionally stripped of all their leaves by the voracious caterpillars of this 

 moth. The lindens frequently suffer nearly as much, and tiie maples and 

 elms come in for a goodly share of attention from year to year. The above 

 is probably true to a great e.xtent of most of the cities and larger villages 

 in the State. The summer of 1898 was marked by the abundant presence 



