_Lead-arsenate Solution_
1 oz. lead arsenate (paste) to 1 gal. of water
or
½ oz. lead arsenate (dry) to 1 gal. of water
This can also be obtained as a fine powder for dusting upon the plants.
This method is less economical of material.
_Paris Green_
½ oz. Paris green }
and } to 3 gal. of water
1½ oz. lime }
When using Paris green as a powder it is advisable to dilute it with
from twenty-five to fifty times its bulk of air-slaked lime. This acts
as a carrier and renders it possible to distribute the poison more
economically and effectively. It is inadvisable to use these poisons,
Paris green and arsenate of lead, on heading cabbages or vegetables that
are shortly to be eaten, as there is some danger of poisoning the
consumers.
_Pyrethrum Powder_