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copper) per acre per application . Do not exceed 300 lbs (75 lbs metallic copper) per acre per <br />year. Do not apply any additional copper pesticide to this land for 36 months. <br />Bulbs (all other ornamentals, Tulip, Gladiolus): Botrytis Blight-Prepare a 8-8-80 Bordeaux <br />mixture and apply as a foliar spray to 1 acre. Apply for thorough coverage beginning at the first <br />sign of disease and repeat as needed to control disease at 7 to 10 day intervals. Use the shorter <br />interva ls during periods of frequen t rains or when severe disease conditions persist. Avo id spray <br />just before flower cutting season if residues are a problem. Do not apply more than 8 lbs (2 lbs <br />metallic copper) per acre per application . Minimum retreatment interva l is 7 days . Do not exceed <br />80 lbs (20 lbs metallic copper) per acre per year. <br />Caneberries: For Leaf and Cane Spot and Pseudomonas Blight-prepare and apply an 8-8- <br />1 00 Bordeaux mixture in the fall before heavy rains begin and again 4 weeks later. Do not apply <br />more than 8 lbs (2.0 lbs metallic copper) per acre per application. Minimum retreatment interval is <br />7 days . Do not exceed 40 lbs (1 0 lbs metallic copper) per acre per year. <br />Cherry (Sweet): Dead Bud, Bacterial Canker (Pseudomonas Syringae)-Prepare a 12-12- <br />1 00 Bordeaux. Apply at leaf fall and again in late winter before buds begin to swell. In wet cool <br />Northwest U.S. winters, a third spray may be needed between above sprays. Do not apply more <br />than 32 lbs (8 lbs metallic copper) per acre per appl ication . Minimum retreatment inte rval is 7 <br />days. Do not exceed 72 lbs (181bs metallic copper) per acre per year. <br />Cherry (Sour): Leaf Spot-Prepare a 10-10-100 Bordeaux. Apply as a full coverage spray after <br />peta l fall or as recommended by the State Extension Service. Do not apply more than 60 gallons <br />or 6 lbs (1 .5 lbs metallic copper) per acre per application. Minimum retreatment interval is 5 days. <br />Do not exceed 72 lbs (18 lbs metallic copper) per acre per year. <br />(NOTE: Adding foliar nutritionals to spray mixtures containing Copper Sulfate Crystals or other <br />products and applying to citrus during the post-bloom period when young fruit is present may <br />result in spray burn .) <br />Citrus: Bacterial Blast -Prepare a 10-10-1 00 Bordeaux spray and apply a spray in late October <br />to early November or before fall rains begin. Make a complete coverage spray using 10 to 25 <br />gals per mature tree. Do not apply more than 12.6 lbs (3.15 lbs metallic copper) per acre per <br />application. Minimum retreatment interval is 7 days. Do not exceed 50.4 l bs (12 .6 lbs metalllc <br />copper) per acre per year. <br />Citrus: Lemon, Orange, Grapefruit: Phytophthora Brown Rot -Prepare a 3-4.5-100 Bordeaux <br />mixture on ly where there is no history of copper injury or use a 3-2-6-1 00 (Zinc Sulfate-Copper <br />Sulfate Crystals-Hydrated Lime-Gallons of water) Bordeaux mixture. Spray 6 gals on skirt of tree <br />3 to 4ft high and 2 to 4 gals on trunk and ground under tree. If P. hibernalis is present, use 10 to <br />25 gals to completely cover each tree . App ly in November or December just before or after first <br />rain. In severe brown rot season, apply second application in January or February. Do not apply <br />more than 12.6 lbs Copper Sulfate Crystals (3.15 lbs metallic copper) per acre per application. <br />Minimum retreatment interval is 7 days. Do not exceed 50.4 lbs (12.6 lbs metallic copper) per <br />acre per year. <br />Citrus: Lemon, Orange, Grapefruit: Septaria Fruit, Leaf Spot;Central California-Brown <br />Rot, Zinc, Copper Deficiencies -Prepare a 3-2-6-1 00 Bordeaux mixture (Zinc Sulfate-Copper <br />Sulfate Crystals-Hydrated Lime-Gallons of water) and use 1 0 to 25 gals to completely cover each <br />tree. Apply in October, November or December before or just after first rain . Do not apply more <br />than 12.6 lbs (3.15 lbs metallic copper) per acre per application . Minimum retreatment interval is <br />7 days. Do not exceed 50.41bs (12 .6 lbs metallic copper) per acre per year. <br />Grape: Downy Mildew-Prepare and apply a 2-6-100 Bordeaux spray beg inning when downy <br />mildew is detected. Repeat as needed to achieve and maintain control. This mixture and its use <br />will exhibit some phytotoxicity on most varieties .. Do not apply more than 12.0 lbs (3.0 lbs <br />metallic copper) per acre per application . Minimum retreatment interva l is 3 days. Do not exceed <br />80.0 lbs (20.0 lbs metallic copper) per acre per year. <br />Olive: Olive Leaf Spot (Peacock spot), Olive Knot-Prepare a 1 0-1 0-100 Bordeaux mixture. <br />Apply in autumn before heavy winter rains to prevent peacock spot. In wet winters , a repeat <br />spray may be needed in mid-winter. In areas with less than 10 inches of annual rainfall , a 5-5- <br />9 <br />6.3.A. - Page 132