. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. Fig. 14.—Caeeot Fly {Psila rosa). A. Carrot Ply (enlarpred). B. Legless larva (enlarged). C. Transverse section of a carrot, showing a "bnrrow " made by the lanrae of PsUa. Cure.—(1) Mix one pint of paraffin oil with two gallons of water, and water the plants with the mixture after thinning. - (2) Top-dress the crops with sand saturated with paraffin oil. (3) " An injured crop should be lifted early, the ground thoroughly limed and deeply ploughed. This destroys
. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. Fig. 14.—Caeeot Fly {Psila rosa). A. Carrot Ply (enlarpred). B. Legless larva (enlarged). C. Transverse section of a carrot, showing a "bnrrow " made by the lanrae of PsUa. Cure.—(1) Mix one pint of paraffin oil with two gallons of water, and water the plants with the mixture after thinning. - (2) Top-dress the crops with sand saturated with paraffin oil. (3) " An injured crop should be lifted early, the ground thoroughly limed and deeply ploughed. This destroys the pupse, and prevents a renewal of the attack in some future ; (4) Farmyard manure, mixed with salt and ploughed into the land during the autumn, destroys the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Griffiths, A. B. (Arthur Bower), 1859-. London : G. Bell
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Keywords: ., bookauthorgriffith, bookcentury1800, bookdecade1890, bookyear1890
