Control of Apple Powdery Mildew

ammoniacal copper carbonate Apple Powdery Mildew apple scab apple-growing districts application of sulphur Ballard barrel containing 50 Bordeaux mixture Bulletin calyx spray casein clear liquid cloudy summer cluster bud codling-moth containing 50 gallons control measures Control of Apple copper sprays crop is light dilution of spray disease Dissolve Farmers foliage follows the application fungous threads fungus gallons of water growing season hold-over infection hot interior infected buds infected shoots infected twig injury iron sulphid irrigation Later spraying leaves leucotricha lime lime-sulphur solution mildew control Neutral Bordeaux orchard Pajaro Valley petals Podosphaera pounds of bluestone pounds of sal powdery spore preparation and dilution protective spray pruning russeting sal soda Sal soda-Bordeaux mixture Second mildew spray Soaptree bark spray materials spray tank spraying schedule spread stock solution sulphur materials sulphur sprays sulphur sunburn TECHNIC OF SPRAYING tender twigs tion twig growth U. S. Dept Volck Wenatchee winter spores wooden vessel