. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. Insects, etc., Injurious to the Vine. 485 " âJlefdv liiig (lestro)'cd. No injury to viijes. A few â appeai-eil in the autman and n second fumigation was given, with the same success as in tlie previous case. " ;y CâCapacity, 1,990 cubic feet. Early variety. Treated when grapes the size of peas. Cyanide, G oz. ; acid, 9 oz. ; water, 1~> oz. Temperature, 65" F.; weather v^ery sultry at time. Time, TO rniuutes. '' ItiHulf.âGrapes brow
. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. Insects, etc., Injurious to the Vine. 485 " âJlefdv liiig (lestro)'cd. No injury to viijes. A few â appeai-eil in the autman and n second fumigation was given, with the same success as in tlie previous case. " ;y CâCapacity, 1,990 cubic feet. Early variety. Treated when grapes the size of peas. Cyanide, G oz. ; acid, 9 oz. ; water, 1~> oz. Temperature, 65" F.; weather v^ery sultry at time. Time, TO rniuutes. '' ItiHulf.âGrapes browned and Ivilled. Entire crop lost. Eidiage uninjured. Mealy bug destroyed. The vinery was kept on the cool side, plenty of air given, and splendid growth and promise of fruit iov next year was obtained. " A few mealy bugs ap- peared in Octoiier. Eumi- gation was repeated. All the l)ugs were destroyed. The season hail so far ad- vanced, however, that ecgs were to be found on tlie shoots. " Tainting the rods with the winter alkali wash in spring and a fumigation before the bloom appears have been decided ; The result of these experiments led Cousins to summarise treat- ment as follows :â3 oz. cyanide, 5 oz. acid, 8 oz. water per 1,000 cubic feet, either before the vines or when grapes are colouring or after the cropj has been gathered. Avoid fumigation wiren the vines are in bloom or before the grapes have commenced to ripen. We may take the latter precautions to apply generally. Consideral)ly less of the chemicals liave been used with success. Eor instance. Miss May Crooke, experimenting at Bredon's Norton School of Gardening (2), found that 3 oz. of 98 potassium cyanide, IJ oz. fluid sulphuric, and 4 oz. of water killed all the mealy bugs in 1,920 cubic feet of space. At Swanley College a large vinery of 17,750 culiic feet space ^vas fumigated in December for forty-five minutes with I5 oz. sodium. -MEALY BUa (Dactjllnpill, (X S.). Please no
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