A Manual for Citrus Growers1947 - 141 páginas |
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Página 51
... areas where tartar emetic is no longer effective for citrus thrips control , application of a spray containing 1 ... areas and nearly always of importance in the coastal areas . For their control use a 10 percent nicotine sulphate dust ...
... areas where tartar emetic is no longer effective for citrus thrips control , application of a spray containing 1 ... areas and nearly always of importance in the coastal areas . For their control use a 10 percent nicotine sulphate dust ...
Página 53
... areas by the parasite , Metaphycus helvolus . However , a part of this parasite's dif ficulty in controlling black scale in other areas is due to the use of sulphur for control of other pests . The personnel of the Citrus Experiment ...
... areas by the parasite , Metaphycus helvolus . However , a part of this parasite's dif ficulty in controlling black scale in other areas is due to the use of sulphur for control of other pests . The personnel of the Citrus Experiment ...
Página 112
... Areas subject to high and variable winds are usually unprofit- ably heated ; but these areas , also , are less subject to frost dam- age . III A comprehensive bulletin has been issued by Floyd D. Young , meteorologist of the U. S. ...
... Areas subject to high and variable winds are usually unprofit- ably heated ; but these areas , also , are less subject to frost dam- age . III A comprehensive bulletin has been issued by Floyd D. Young , meteorologist of the U. S. ...
Índice
Chapter Page 1 SOILS CLIMATE WATER | 2 |
CITRUS TREES | 4 |
IRRIGATION PRACTICES | 11 |
Direitos de autor | |
18 outras secções não apresentadas
Palavras e frases frequentes
100 gallons acid alkaline ammonia amount applied areas black scale boxes per acre brown rot carbon cause chemical chlorosis Citrus Diseases Citrus Experiment Station citrus fruits citrus growers Citrus Leaves citrus trees copper COST PER ACRE County cover-crops crop cultivation Cultural Cost damage dust effective fertilizer field boxes foliage fumigation fungus furrows grapefruit grove growth heavy inches injury insects irrigation irrigation water juice leaf lemons lime manganese deficiency manures material mealybug method mixture moisture Mutual Orange Distributors navel navel oranges nitrate nitrogen oil spray orchard organic matter packed boxes parasites percent pest control phosphate phosphorus plow-sole potash pounds production profitable pruning red scale red spider rind root zone rootstock Rough lemon scaly bark Septoria soil sucker sulphate sulphur symptoms temperature thrips treatment trifoliate orange trunk usually Valencia orange virus weeds windbreak wood young trees zinc deficiency zinc oxide zinc sulfate