The two most useful arsenical sprays are Paris green and arsenate of lead.
of the Paris green with 15 gallons of soft water, and add 2 oz.
Dusting with Paris green is, however, an efficient remedy if promptly applied at the outset of the attack.
They can be killed by spreading about cabbage leaves, &c., poisoned with Paris green.
The tank would be filled with ' Paris Green ', an extremely poisonous insecticide.