2 FARMERS’ BULLETIN 564. 
and was undoubtedly introduced some seasons previous to that time 
on imported nursery stock. The work of preventing damage by this 
insect was undertaken by the State of Massachusetts soon after the 
pest was discovered. This species occurs in many sections of Europe 
and is often seriously injurious. It spreads rapidly because the 
females are able to fly long distances. The accompanying map 
(fig. 1) shows the area in New England which is now infested by the 
3 Sots ol 
"AREA INFESTED “°° QUARANTINED 
abs FOR THE iH 
GIrPsy MOTH 2010 THE SRO MOTH 
| NEW ENGLAND SH/3- 
pee PINS A Shaded area infested by Gipsy (ofp. 
put eres os: Area east of. PED! tie Wlested YS Srownteil Hobe 
a ps akan 
ie de 
er 
ee 
Sau ie PE oa 
Fic, 1.—Map showing area infested and quarantined for the gipsy moth and the 
brown-tail moth, 1913. (Original.) 
brown-tail moth. Suppressive measures by the New England States 
and by the Federal Government have been directed against this in- 
sect as well as against the gipsy moth. 
It is the purpose of this bulletin to give a brief statement of the life 
history and habits of these two species and to suggest the best methods 
that can be adopted for their control, 
