affectinfj the Corii-Croim. 
Ill 
Cold currents of air, introduced hy small windows near the 
floor, is a sure remedy. 
Burning sulphur, and creating sulphuric acid, will kill the moths 
in a close apartment. 
Corn has thus been kept by the party recommending this mode 
for 6 years. 
It is feared the caterpillars will escape the fumigation by bury- 
ing themselves in the corn-heaps. 
Scattering salt over the corn is beneficial, and if powdered and 
mixed with the corn will kill the caterpillars ; or it may be dis- 
solved in water and sprinkled over the heaps. 
A small heap of corn left undisturbed, frequently turning over 
the rest, is a sure and simple plan of catching the larva;, and they 
can easily be destroyed by pouring boiling water over. 
Diseased corn should be sown deep, to prevent the moths escap- 
ing from the chrysalides. 
If corn be left long standing in the field, the moths soon de- 
posit their eggs in the ears. 
Bats, spiders, and small birds are the natural enemies of the 
Grain-moth. 
The Rice-iveevil is found amongst rice, and in wheat imported 
from Italy, in granaries and in ships. 
The maggot lives in the grain, and feeds on the flour. 
The grains appear sound outside, with a minute hole towards 
the bottom. 
About ninety -five per cent, of the flour destroyed in a sample 
from Ancona. 
The pupcB are similar to those of other Weevils. 
An apterous parasitic insect, one of the Diplolepidce, preys 
upon them. 
The Granai-y-weevil bores a hole in the grain of wheat, and 
deposits an egg in it. 
The maggot lives in the grain, changes to a pupa there, and in 
eight or ten days the Weevil eats its way through the skin. 
Only one maggot lives in each grain, and it is in this state they 
do so much mischief, although the Weevils are believed to feed 
upon the corn also. 
If the temperature be kept under 50° Fahr. the sexes do not 
pair ; and they do no further mischief. 
When it is cold the Weevils become torpid. 
In April thexj pair, if the temperature be 54°, and they go on 
propagating until the end of August. 
The warmer the weather the more eggs are deposited, but the fe- 
males cease to lay when it becomes cold. 
So fast do they multiply in the south of France, that sometimes 
in a corn-heap nothing but the husks are left. 
