Spraying Crops; Why, When, and howO. Judd Company, 1903 - 136 páginas |
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Página 5
... cylindrical eggs ( e ) deposited upon the bark of the tree . It feeds upon the soft parts of the leaves , causing a badly infested tree to appear brown and seared , as if scorched by fire . These worms. SPRAYING AGAINST INSECTS 5.
... cylindrical eggs ( e ) deposited upon the bark of the tree . It feeds upon the soft parts of the leaves , causing a badly infested tree to appear brown and seared , as if scorched by fire . These worms. SPRAYING AGAINST INSECTS 5.
Página 7
... Brown Rot of grapes . The Brown Rot of grapes is a fungous disease- that is , it is a diseased condition of the foliage or fruit due to the presence of a fungus . This fungus is a minute , parasitic plant that develops at the expense of ...
... Brown Rot of grapes . The Brown Rot of grapes is a fungous disease- that is , it is a diseased condition of the foliage or fruit due to the presence of a fungus . This fungus is a minute , parasitic plant that develops at the expense of ...
Página 59
... brown , but do not have a tendency to fall as a result of the damage . This pest is most likely to be introduced into new localities upon nursery stock imported from infested regions . This is believed to be the way in which it was ...
... brown , but do not have a tendency to fall as a result of the damage . This pest is most likely to be introduced into new localities upon nursery stock imported from infested regions . This is believed to be the way in which it was ...
Página 62
... In Oregon it seems to be necessary to spray late for the second brood of worms . But if the burlap bands were used persistently this probably could be avoided . The APPLE CURCULIO is a small , dull brown , 62 SPRAYING CROPS.
... In Oregon it seems to be necessary to spray late for the second brood of worms . But if the burlap bands were used persistently this probably could be avoided . The APPLE CURCULIO is a small , dull brown , 62 SPRAYING CROPS.
Página 63
Clarence Moores Weed. The APPLE CURCULIO is a small , dull brown , hard- shelled beetle , with a long snout and four peculiar warts on its back . The beetles drill holes in young apples , both for food and the deposition of eggs . The ...
Clarence Moores Weed. The APPLE CURCULIO is a small , dull brown , hard- shelled beetle , with a long snout and four peculiar warts on its back . The beetles drill holes in young apples , both for food and the deposition of eggs . The ...
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Términos y frases comunes
50 gallons acre Agitating Device appear apple application arsenate of lead arsenical poison arsenites attacks barrel become full-grown beetles blight blossoms boiling Bordeaux mixture brown BROWN ROT buds cabbage caterpillars change to pupae cherry cocoons codling moth color copper sulphate crop currant destroyed by spraying destructive develop dilute dissolved DOWNY MILDEW emulsion Experiment Station feed foliage fruit fungi fungicides fungous disease FUNGUS ENEMIES gallons of water gallons water grapes hatch Illustrated inch long infested injury INSECT ENEMIES insecticide kerosene kerosene emulsion larvae later leaf LEAF-BLIGHT leaves lice lime London purple magnified MILDEW mycelium nozzle orchard ounces Paris green particles of poison pass the winter peach pear pest plants PLUM CURCULIO potatoes pounds powder prevent Professor pump pupa pupate Pyrethrum Remedies-Spray remedy Riley San José scale season second brood slake soap soon spores spots spraying machine STRAWBERRY suck sulphur surface tobacco treatment trees twigs vines weeks worms young
Pasajes populares
Página 22 - Towards the last, considerable water will be required, but if added carefully and slowly, a perfectly smooth paste will be obtained, provided, of course, the lime is of good quality. When the lime is slacked, add sufficient water to the paste to bring the whole up to 25 gallons.
Página 22 - ... pounds of lime, using care in order to obtain a smooth paste, free from grit and small lumps. To accomplish this it is best to place the lime in an ordinary water pail and add only a small quantity of water at first, say a quart or a quart and a half. When the lime begins to crack and crumble and the water to disappear, add another quart or more, exercising care that the lime at no time gets too dry.
Página 25 - ... mark, previously made on the barrel. It will be understood, of course, that this second adding of water is merely to replace the space previously occupied by the sack and the crystals of copper sulphate. Each gallon of the solution thus made will contain two pounds of copper sulphate, and, under all ordinary conditions of temperature, there will be no material recrystallization, so that the stock preparation may be kept indefinitely.