FOOD PLANTS OF THE GIPSY MOTH IN AMERICA. ape 
BALM-OF-GILEAD (Populus balsamifera L.). 
In the trays the food withered badly, and although first-stage larve de- 
veloped full-grown larve and moths they were undersized. 
In the field the writer has observed very large sixth-stage larvie feeding on 
this poplar, and large adults resulted. 
LARGE-TOOTHED ASPEN (Populus grandidentata Michx.). 
No adults were obtained from the trays started with first-stage larve on this 
species, aS the last caterpillar died in the fifth stage. The larve fed freely up 
to the fourth stage, when feeding fell off and they died rapidly of disease. 
In the field much the same observations were made, but the larvz were ex- 
ceptionally large and some moths were produced. 
LOMBARDY PoPLaR (Populus nigra var. italica Moench). 
No adults were obtained from this species either at Worcester or at Melrose 
Highlands, but at the former Jaboratory larve in the fifth stage developed in 
trays started in the first stage. Feeding was quite free on this species, but the 
’ Jarve died rapidly of disease. 
No field observations were made. 
Srtverk Poprar (Populus alba UL.) 
Both at Worcester and Melrose Highlands the larve started in the first stage 
on this foliage all died by the time they reached the fifth stage. They fed quite 
freely, but died rapidly of disease. 
This species is not favored by the gipsy moth as are the other poplars. 
PrRiveT (Ligustrum vulgare L.) 
Very few larve started in any stage on this foliage reached the succeeding 
stage. 
Mr. Schaffner reports slight feeding by second, third, and fourth stage larve. 
It is an unfavored species. 
RASPBERRY (Rubus Sp.). 
Several observers have records of feeding on this plant. Most of these are 
of larve in the first stages. Complete defoliation occasionally results. 
PASTURE Rose (Rosa virginiana Mill.). 
A large percentage of adults were reared from trays started with first-stage 
larve fed upon this foliage. Heavy feeding occurs in all stages. 
Records of field observations show that the larve feed freely in all stages 
when the infestation is fairly heavy and stripping has been noted. 
WILD SARSAPARILLA (Aralia nudicaulis L.). 
Sarsaparilla is a plant which is very common in some localities. No feeding 
has been found on its foliage by the gipsy-moth larve. 
