White-Hellebore Powder.

It is best mixed some time before use, so as to extract all the strength. A good plan is to put 1oz. of the hellebore into each of any desired number of tin canisters, pickle-bottles, or any other handy receptacles, then fill up with boiling water. When prepared to spray, the contents of one of these should be strained into the apparatus for every two gallons of water.

The trees should be sprayed so soon as the little slugs get numerous on the leaves, and again in three weeks' time. Usually two sprayings in a season suffice, but if the pest is very bad another spraying may be necessary. In isolated orchards not surrounded by whitethorn hedges, after a year or two of careful spraying, once in the season will often be sufficient.