A Manual for Citrus Growers1947 - 141 páginas |
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Página 40
Mutual Orange Distributors (Redlands, Calif.) Willis Harlan Parker. OIL SPRAYS , used in California for citrus pest ... Spray Oil Classifica- tion . The classes , based on the oil distillation percentage at 636 degrees Fahrenheit , are ...
Mutual Orange Distributors (Redlands, Calif.) Willis Harlan Parker. OIL SPRAYS , used in California for citrus pest ... Spray Oil Classifica- tion . The classes , based on the oil distillation percentage at 636 degrees Fahrenheit , are ...
Página 41
... Oil sprays should be avoided within 60 days of the use of sulphur in any form . II Variations in Methods of Spray Application There is a growing interest in the idea of varying the standard system of oil spray application to meet the ...
... Oil sprays should be avoided within 60 days of the use of sulphur in any form . II Variations in Methods of Spray Application There is a growing interest in the idea of varying the standard system of oil spray application to meet the ...
Página 47
... Oil sprays still show the most satisfactory results . Usually normal spraying for scale in interior districts will ... spray has been proven to be a fairly satisfactory control in those cases where the grower de- sires to avoid the use of an ...
... Oil sprays still show the most satisfactory results . Usually normal spraying for scale in interior districts will ... spray has been proven to be a fairly satisfactory control in those cases where the grower de- sires to avoid the use of an ...
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