. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. 152 Insect Pests. This .ground treatment must lie earned out before April, and in ilril uriit/icr. The etiect in wet soil is, I have found, as disappointing as it is satisfactory in dry land. Mr. Pickering informs me tliis cannot be so, as it should be nmst fatal in damp soil. However, personal experience has proved the reverse two years in succession. It is very essential that all young stock be fumigated with hydro- cyanic acid gas before planting. The stocks may
. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. 152 Insect Pests. This .ground treatment must lie earned out before April, and in ilril uriit/icr. The etiect in wet soil is, I have found, as disappointing as it is satisfactory in dry land. Mr. Pickering informs me tliis cannot be so, as it should be nmst fatal in damp soil. However, personal experience has proved the reverse two years in succession. It is very essential that all young stock be fumigated with hydro- cyanic acid gas before planting. The stocks may be placed in a greenhouse or tent rigged for the purpose, of known capacity, and then fumigated. When dormant, as at the time of lifting, the bushes may be fumigated at the folhjwing strength :—For every 100 cubic feet of. ';. l:!i:. — IIP e.\l;B(ix liv MKAN^ I'HK \ i:i;>l(i|;h:i, ii;. space use 1 oz. of sodium cyanide or potassium cyanide, 1 oz. of sul- phuric acid and 4 oz, of water. The trees should be kept in the fumes for ;i minutes. It will be found that the tips niav now and then be scorched, especially in some varieties, as the Beauty of Batli and Worcester Pearmain, but no actual damage is done. If nursery- Uien will not guarantee the stock has been so treated, then it is well wortli the grower's while to do so liiniself,* Pielicriiig iimuersion in petrol for five inimites ov in water at IW V. for ten minutes, Tliis kills tlie apliis, but neither, as far as I ean s. iitteets tlie o\a, so tluit tnmigation had liest be relied on. ee,. 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 Theobald, Frederick Vincent, 1868-1930. Wye, Eng. : Frederick V. Theobald
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectpests, bookyear