. Better fruit. Fruit-culture. Page 6 BETTER FRUIT February, 1920. Power sprayer arranged to reach both the upper and lower parts of the tree. ground. Special attention should be given to the destruction of the hibernating insects by scraping off the rough bark of the trunk and limbs, and spraying the trees thoroughly be- fore the adults go into hibernation in the fall, or before they emerge from hibernation in the spring. Days should be selected when the sprays will not freeze on the trees. An effect- ive winter-spray is made up as follows: Forty per cent nicotine sulphate, three-fourths of a
. Better fruit. Fruit-culture. Page 6 BETTER FRUIT February, 1920. Power sprayer arranged to reach both the upper and lower parts of the tree. ground. Special attention should be given to the destruction of the hibernating insects by scraping off the rough bark of the trunk and limbs, and spraying the trees thoroughly be- fore the adults go into hibernation in the fall, or before they emerge from hibernation in the spring. Days should be selected when the sprays will not freeze on the trees. An effect- ive winter-spray is made up as follows: Forty per cent nicotine sulphate, three-fourths of a pint; fish-oil soap, 3 to 5 pounds; water, 100 gallons. Psylla eggs about to hatch, and young nymphs, may be successfully treated in early spring as the blossoms in the cluster buds are spreading, using winter-strength lime-sulphur solution. It usually w ill be practicable to defer the application for the San Jose scale until this time. Nymphs of the flrst brood mostly congregate in the axils of the young leaves and fruit, and may again be treated with the nico- tine-soap spray, above mentioned, applied just after the blossoms have fallen, arsenate of lead being added for the codling moth. Pear thrips—The adult pear thrips come from the ground in the spring as the bud scales are spreading, and owing to their minute size are able to work their way within, where they feed upon the tender tissues of leaf and flower buds. Fruits like the pear and prune, which bear the blossoms in clusters, suffer worst, and when the insects are abundant the crop literally may be destroyed in the bud. Fruit blossoms attacked, but which escaped destruc- tion, is likely to be deformed and scabby and of lessened market value. The pear thrips has caused large losses on the Pacific coast, and more recently has become established in the Hudson valley, in Maryland, and elsewhere in the east. It is controlled by spraying with nico- tine and soap, or nicotine-distillate spray when the buds flrst begin to
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