. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. PEACH PESTS 1565 â ».*.v^iai:^iiei«iMs*«ft. Fig 1. Terrapin Scale (Eulecanium nigrofas- ciatum). Adult females on twig of peach. (Purdue Experiment Station) central reddish boss. Occasionally indi- viduals are found which are entirely red or black. Food Plants For many years the terrapin scale has been considered a specific enemy of the peach
. The encyclopedia of practical horticulture; a reference system of commercial horticulture, covering the practical and scientific phases of horticulture, with special reference to fruits and vegetables;. Gardening; Fruit-culture; Vegetable gardening. PEACH PESTS 1565 â ».*.v^iai:^iiei«iMs*«ft. Fig 1. Terrapin Scale (Eulecanium nigrofas- ciatum). Adult females on twig of peach. (Purdue Experiment Station) central reddish boss. Occasionally indi- viduals are found which are entirely red or black. Food Plants For many years the terrapin scale has been considered a specific enemy of the peach and has been confounded by many entomologists and others with Euleca- nium persicae (Fab.), the pre-eminent peach soft scale of Europe. At present we know it as infesting a large number of host plants, including many varieties of peach and cultivated plums; various species of wild plums and cherries, apple, pear, quince, several species of Cratae- gus, three species of maple, oriental and western sycamores, Carolina poplar, olive, blueberry (Vaccinium sp.). Distribution This scale has been reported from very nearly the entire section east of the Rocky mountains. Parasites Very small, parasitic four-winged flies of the genus Coccophagus, family Chal- cididae, are our greatest benefactors in the control of this scale insect. Kemedies Unfortunately the lime-sulphur wash, which is such an excellent remedy for the San Jose scale and which at the same time controls the peach leaf-curl, is worthless for treating the terrapin scale. Numerous experiments in the use of the lime-sulphur wash against this scale on various host plants have produced only negative results. Kerosene emulsion has proved to be the most effective remedy for the control of this pest. This emulsion, when prop- erly made according to the formula be- low, can be sprayed with safety on any tree during the dormant periodâin win- ter or early spring before the buds open âat a strength of 20 to 25 per cent. A no
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Keywords: ., bookcentury1900, booksubjectfruitculture, booksubjectgardening
