Leaflets. Nos. 1 to 100 / Board of Agriculture and Fisheries.

  • Great Britain. Board of Agriculture and Fisheries.
Date:
1917
Catalogue details

Licence: Public Domain Mark

Credit: Leaflets. Nos. 1 to 100 / Board of Agriculture and Fisheries. Source: Wellcome Collection.

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    must be used, so as to send out afine dense spray. In a case where, experimentally, sand or sawdust steeped in paraffin was spread on the drills, not only were the young turnips more vigorous in their growth, but they were also protected against a small Ceutorhynchus weevil which attacks the seed-leaves before these get above the soil. The nozzle of the sprayer should be a very fine one so that the leaves do not get a heavy dressing. 10.—Rolling infested plants, by disturbing the beetles, frequently proves serviceable, especially if the soil is cloddy. ~ 11.—Pushing by hand a light wide framework upon wheels with well tarred boards fastened upon it, so as to come just over the plants, has been found to catch many beetles, which, being disturbed, jump against the tar. Many acres can be got over in a day bya horse pulling this machine, which should be made very light. The tar requires to be renewed as it gets dry, and the beetles, which accumulate in masses, must be scraped off. Cart grease may be used instead of tar. Species of the neighbouring genera Haltica and Psylliodes, concerning which as Crucifer enemies there is some doubt, are being studied. Whitehall Place, S.W.1, July. 1895. Revised, March, 1913. Copiés of this leaflet may be obtained free of charge and post free on application to the Secretary, Board of Agri- culture and Fisheries, 3, St. James's Square, London, S.W'.1. Letters of application so addressed need not be stamped.