| 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
| 1 oz. pyrethrum to 2 gal. of water | |
Can also be applied as a powder. It is a good insecticide for use on vegetables that are shortly to be eaten, as there is no danger of poisoning human beings by its use. Can also be used as a contact spray.
Hellebore Powder
| 2 oz. hellebore to 1 gal. of water | |