84 
larvee are reported only in September and October, during which 
months the pupe are found. Previous to the pupation the larva 
spins a cocoon of silk within a bunch of leaves, or sometimes 
attached to a twig. 
I have not myself seen this species on the strawberry in [linois; 
and it is reported as a strawberry insect on the authority of Mr. 
Saunders, who says that he has found it ‘feeding very commonly” 
on this plant. If it were to become too abundant to be destroyed 
by hand, it would, of course, be easy to kill if with arsenical poiscns, 
administered in midsummer, as even the first brood of the cater- 
pillars, where there are two, does not appear until after the straw- 
berries are picked. 
THe Army Worm (Leucania unipuncta, Haw.) 
Order Lerrpoprera. Family Nocruma. 
[Plate VI, Fig. 1-2.1 
Passing mention may be made in this connection of this de- 
structive pest, which last year swept through strawberry fields in 
Southern Illinois, stripping the plants of foliage, and leaving the 
unripe fruit upon the ground gnawed from the stems. 
The fields might be protected from its attack by the barriers used 
by grain farmers to arrest its march. The most successful of these 
is a deep furrow plowed around the field, the imner wall of which 
may be made slanting from the top of the furrow downwards 
and inwards towards the field, by the use of a spade. The 
worms collecting here may be killed by dragging a log along the 
furrow; or holes may be dug in it at intervals, im which they 
will rapidly collect, where they may be mashed by thousands. It 
is also probable that the progress of an army of these worms could 
be arrested by thoroughly treating a belt of the plants in front of 
them with Paris green. It should be remembered that measures of 
this sort which will not pay for ordinary farm crops, may never- 
theless be employed with great profit for products as valuable as the 
strawberry. 
Cutworms, Agrotis, sp. 
An illustration of the damage to strawberries which these insects 
are liable to do under favoring conditions, is afforded by the account 
given by Mr. Saunders, in the article already cited, of the injuries 
due to a species occurring in Canada, but the name of which he 
does not mention. He says: ‘This is an insect which has been 
most unusually injurious during the past season on fruit plantations 
on the borders of Lake Huron, near Sarnia. At first its habits were 
not understood, and it pursued the ‘even tenor of its way’ uninterrupted 
night after night; the perplexed fruit-growers not knowing why it was 
that every day the foliage on their fruit trees and strawberry patches 
grew slimmer. But soon it was found that the enemy was a night 
worker, and this knowledge of its habits was at once turned to 
