A Manual for Citrus Growers1947 - 141 páginas |
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Página 47
... cause defoliation if left uncontrolled . Oil , DN111 or lime sulphur sprays are used for control . CITRUS BUD MITE . The mites live and develop inside the buds , and their feeding on the developing tissues causes misshapen leaves and ...
... cause defoliation if left uncontrolled . Oil , DN111 or lime sulphur sprays are used for control . CITRUS BUD MITE . The mites live and develop inside the buds , and their feeding on the developing tissues causes misshapen leaves and ...
Página 61
... caused by the same fungi of the genus Phytophthora which cause brown rot gummosis . The damage is caused by spores of the fungus , which re- sides in the soil , being splashed by rains onto the lower fruits . Thus the disease is more ...
... caused by the same fungi of the genus Phytophthora which cause brown rot gummosis . The damage is caused by spores of the fungus , which re- sides in the soil , being splashed by rains onto the lower fruits . Thus the disease is more ...
Página 75
... cause heavy losses . The water - filled cells swell up and cause tiny splits in the rind surface near the navel and stem ends . More water is rapidly taken in through these splits and causes the affected portion of the rind to swell ...
... cause heavy losses . The water - filled cells swell up and cause tiny splits in the rind surface near the navel and stem ends . More water is rapidly taken in through these splits and causes the affected portion of the rind to swell ...
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