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amount appeared applied April Aucuba aucuba mosaic average baked soil carbonate carnation cent Cheshunt chlorate Chrysanthemum commercial nurseries Complete Artificials compounds cresylic acid crop cubic feet cucumber developed Ditto oz effect emulsified emulsion experiments favourable fertilisers foliage formaldehyde fruit fulvum fumigation fungus Fusarium glasshouse green manure growers grown growth healthy heated hibernation inches increase infection injury inoculated Investigations June killed leaf mould leaves lesions lime maturation period mildew moist chamber mosaic disease naphthalene nitrate nitrogen normal obtained oil emulsion ordinary mosaic parasite Percentage phosphates phosphoric acid placed plots potash pots Red Spider Mite root scorch season shewed sodium spores sporulation spraying stable manure stages steamed stem sterilised straw stripe sulphate of potash sulphur superphosphate symptoms Table Temp tested tissue Tobacco tomato houses tomato plants tons per acre top dressing truss Unmanured varieties ventilation weeks white-fly wilt yield