The hellebore should first be boiled in water and then diluted to make one gallon. It is very similar in its action to pyrethrum.
CONTACT INSECTICIDES FOR SUCKING INSECTS
Soap Solution
| 2 oz. laundry soap to 1 gal. of water |
Nicotine Solution
| ½ oz. 40% nicotine | } | ||
| and | } | to 3 gal. of water | |
| 1 oz. soap | } |
The soap is added to this solution to assist in spreading the mixture and to make it come in close contact with the insects.
Resin Fish-oil Soap
Is recommended by U. S. Department of Agriculture to be added to contact sprays and fungicides, to act as a “sticker” when they are to be used on crops with smooth leaves to which the spray will not stick.
Use two ounces to three gallons of spray mixture.