This section is from the book "The Gardener's Monthly And Horticulturist V22", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
The Journal of Horticulture says: "If vineries are not badly infested, the vines should have all the loose bark removed after pruning, and be well washed with Fir tree oil at the rate of half a pint to three gallons of water, or with Gishurst compound. Paraffin oil is certain death to the mealy bug, should only be employed by experienced hands upon vines, for it will kill the vines as well as the bug if not judiciously applied. It is good for cleaning the woodwork, but must be diluted with water, and should be applied with a brush. The surface soil, if the border be inside, should be removed and fresh soil supplied. The walls should also be washed with hot lime mixed with paraffin oil. Even if every part of the house and vines is thoroughly cleaned the pest will make its appearance again after the vines have started into growth and the season has advanced. The early spring or summer, according to the time when forcing commences, is when the insects increase. Their destruction can be accomplished when they are first seen creeping upon the vines, which should be examined sedulously and perseveringly.
If left until the foliage expands, the work of searching for the enemy is useless; but if the search is thorough and continuous early in the season, and the insects are killed as they appear, they will considerably decrease, and in a season or two the house will be entirely free".