249 
The larva is of a grass green color, very active, wriggling itself 
away very much like a tortrix caterpillar if touched. They feed on 
grape-vines, folding the ends or edges of leaves inward and fastening- 
loosely with silk while the caterpillars remain within the enclosure! 
Ihere aie with us two broods of the moths in a season, the first in 
June, producing worms in July, and the second in August, the prog¬ 
eny of these passing the winter in the chrysalis state. These are 
formed within the folded leaf that was the habitation of the worm. 
, , , _ w lids or worms within the folded leaf may be 
crushed betw T een the two hands which will be, where there are but 
few vines, a good means of destroying them, but in a vineyard this 
would be tedious. By going over a vineyard in the fall before the 
leaves drop off and picking off and destroying all folded and crumpled 
leaves would destroy the June brood of moths and with that the next 
years worms. This however to be effectual should be done by all 
whose vines are affected, to accomplish the object sought for the moths 
may readily fly from one vineyard to another. There are several 
natural enemies that prey upon these worms. 
Phycita (Acrobasis) nebulo, Walsh.—The Apple-leaf Crumpler. 
More or less bunches of crumpled 
leaves are to be seen every winter 
remaining on apple trees after the 
leaves have fallen. An examina¬ 
tion of these shows that several 
leaves are fastened together with a 
web and that they contain one or 
more twisted horn like cases, en¬ 
closing small reddish brown worms, 
the whole securely attached to the 
twig by silken threads. These are 
the larvae of this moth that thus 
hibernate in a half giown state to 
complete their growth by feeding 
on the young leaves as they open in 
the spring. They undergo their 
transformation in the case, and 
come out as moths in June, varying 
with the latitude. There is but 
one brood in a season, the worms 
,, ,, , . fiom the eggs deposited by the 
mo,hs that come out in June becoming the partly grown worms that 
are round in the cases through the winter. 
When full grown the caterpillar is often of a dull green color, the 
head and top ot first segment a little darker than the rest of the body, 
and it tapers gradually from the first to the last segment. The moth 
has the fore wings pale ash gray, variegated with light and dark 
brown ; the hind wings being more dusky. The male may be known 
rom the female by a little tuft on the basal joint of the antennae. 
Figure 46.— Apple Leaf Crumpler. 
