25 
ever, are undoubtedly concerned in this damage. The larvee of Feltia 
malefida, Noctua c-nigrum, Agrotis ypsilon, and Plusia rogationis have 
been found to have similar habits. 
Since the discovery of the poisoned-trap system, there is no reason 
why land should be allowed to be infested by cutworms year after 
year. Dr. A. Oemler, of Wilmington Island, Georgia, the author of the 
excellent little book entitled ‘“‘ Truck farming in the South.” had been for 
some years in the habit of 
scattering bunches of grass 
through his fields, or placing 
here and there turnip or cab- 
bage leaves, and collecting 
from time to time the cut- 
worms which had gathered 
under them. At the sugges- 
tion of Professor Riley, in 1882 
or 1885, he began poisoning 
these vegetable traps with ’ 
paris green, which saved the "1%: !?.—Feltia annexa: a, larva; f, pupa; h, moth—nat- 
trouble of examining them Se ae PY): 
and killmg the worms by hand. The method proved perfectly satis- 
factory, and has ‘since been extensively used in all parts of the country. 
An innovation was later adopted by Prof. A. J. Cook, of Michigan, 
who poisoned a patch of grass with a broadcast sprayer, afterwards 
cutting the grass, loading it on a wagon, and pitching it with a fork 
in little bunches here and there through the field. Any early vege- 
tation may be used in this way, 
and extensive fields can bé economic- 
ally rid of the worms before most 
crops show themselves above ground. 

PLANT-LICE. 
While the cotton plant is yet young 
and tender, the damage which plant- 
lice do by gathering upon the young 
shoots and tender leaves and curling 
and distorting them may be very con- 
et ee ee mele fad a; Jarva;es;,moth—" siderable. The Species engaged im 
natural size (after Riley). a : 
this work is generally, if not always, 
Aphis gossypii Glover. Recent investigations by Mr. Pergande, of this 
Division, have shown that this insect is identical with the species 
which occurs commonly through the South, and the North, too, for 
that matter, upon melons and cucumbers, and which was described by 
Ashmead as Aphis citrulli and by Prof. S. A. Forbes as Aphis cucumeris. 
It has very many food plants, as has been shown by Pergande, and 
remedial work, except upon the crop which it is proposed to protect, 
is practically out of the question. In other words, there is no single 

