74 THE SEED-GROWER. 
growing seed within and there makes its home, living 
and feeding, to become finally a pupa or a complete 
bug. In this last form it remains dormant in the seed, 
eventually to come out when the seed is sown; or as 
often happens, it may emerge earlier, when the seed is 
in the seed-bin or in the sack. By instinct the insect 
avoids the germ, subsisting only on the material which 
encloses the germ, that substance provided by nature as 
food for the young plant until it can succor itself by 
means of its roots. But sometimes the insect, when too 
voracious, will consume too much of this plant-food 
matter, and this then is the cause of some bug-eaten 
peas not germinating. If they dosprout, then the young 
plants frequently die from lack of sufficient nourishment. 
To insure protection from pea weevil, the seed-dealer 
should dose his seed-peas with bisulphide of carbon as 
soon as received in store. The manner in which to do 
this is to place the bag or bags containing the peas in 
an air-tight room or a close-covered bin, and leave them 
exposed to the vapors of the bisulphide from twenty- 
four to forty-eight hours, which will kill the dormant 
bugs without injury to theseed. Thesame is also effec- 
tive for killing bugs in beans, cow peas, and all other 
seeds. 
The bisulphide of carbon is placed in a dish and set 
on top of the bags containing the seed. It evaporates 
rapidly, and the heavy vapors sink into the mass of the 
seed and kill the bugs. If found necessary repeat the 
operation several times during a season. In small quan- 
tities, bisulphide of carbon costs 15 to 20 cents per 
pound; one pound should treat 30 bushels of seed. The 
liquid and the fumes are very inflammable and poison- 
ous, and all fire should be kept away from it; for that 
reason an unoccupied, air-tight room is to be preferred 
