Do you use a pre-made commercial
Copper Sulfate Bordeaux Mixture?
Are there long lists of chemicals? Ingredients other than EPA Labeled Pure Copper Sulfate Crystals and Hydrated Lime that may HARM fruit and vegetable crops? Then you should be making your own! Start with purchasing OUR Pure EPA Labeled Copper Sulfate Crystals to use in making Your Own SIMPLE Bordeaux Mixture that has been TRUSTED BY ORGANIC FARMS FOR 100+ YEARS.
MAKE YOUR OWN COPPER SULFATE BORDEAUX MIXTURE:
Using Our Pure EPA Labeled Copper Sulfate Pentahydrate.
Bordeaux Mixture Ingredients Wholesale!
How to Understand Bordeaux Formulations - If the Bordeaux Mixture Instructions reads 10-10-100, the first figure means the number of pounds of EPA Copper Sulfate Crystal. The second figure means the pounds of hydrated spray lime, and the third figure, the gallons of water to be used. Use as a full coverage spray to runoff.
How to Prepare a Bordeaux Mixture - To prepare a Bordeaux mixture, fill a tank with water, one quarter full. Then with agitator running, mix in EPA Copper Sulfate Crystal through a copper, bronze, stainless steel or plastic screen. Add water so the tank is three quarters full. Mix in the hydrated spray lime through the screen and finish filling the tank with water.
CROP USE DIRECTIONS
ALMOND, APRICOT, NECTARINE, PEACH: Shot Hole Fungus - Prepare a 10-10-100 Bordeaux and apply as a dormant spray in late fall or early spring.
ALMOND, APRICOT, CHERRY, PEACH, NECTARINE, PLUM, PRUNE: Brown Rot Blossom Blight - Prepare a 10-10-100 Bordeaux and apply when buds begin to swell.
APPLES: Fireblight - Mix 5 lbs. of Copper Sulfate Crystal in 100 gallons of water and spray uniformly to the point of runoff. Apply in dormant only at silver tip stage. After silver tip severe burn will occur on any exposed green
BULBS (EASTER LILY, TULIP, GLADIOLUS) - Botrytis Blight - Prepare a 10-10-100 Bordeaux and apply as a foliar spray to one acre. Apply for thorough coverage beginning at the first sign of disease and repeat as needed to control disease at 7 day intervals. Use the shorter intervals during periods of frequent rains or when severe disease conditions persist. Avoid spray just before flower cutting season if residues are a problem.
CHERRIES (SWEET): Dead Bud, Bacterial Canker (Pseudomonas syringae) - Prepare a 12-12-100 Bordeaux. Apply at leaf fall and again in late winter before buds begin to swell. In wet cool Northwest U.S. winter, a third spray may be needed between above sprays.
CHERRIES (SOUR): Leaf Spot - Prepare a 10-10-100 Bordeaux. Apply as a full coverage spray after petal fall or as recommended by the State Extension Service.
GRAPES (EXCEPT CALIFORNIA): Downy Mildew - Prepare and apply a 2-6-100 Bordeaux spray beginning when downy mildew is detected. Repeat as needed to achieve and maintain control. This mixture and its use will exhibit some phytotoxicity on most varieties.
GRAPES (DORMANT): Powdery Mildew - Apply in spring before bud-swell and before green tissue is present. Use 4 to 8 lbs. of Copper Sulfate Crystal per 100 gallons of water. Apply in high volume spray of 300 gallons water per acre. Direct spray to thoroughly wet the dormant vine, especially the bark of the trunk, head, or cordons.
OLIVES: Olive Leaf Spot (Peacock Spot), Olive Knot - Prepare a 10-10-100 Bordeaux spray. Apply before fall rains begin, usually late October or early November in California. In wet winters, a repeat spray may be needed in mid-winter. In areas with less than 10 inches of annual rainfall, a 5-5-100 Bordeaux spray may be used. Injury may occur in areas of less than 10 inches of rainfallPEACHES: Leaf Curl - Prepare a 10-10-100 Bordeaux and apply at leaf fall or as a dormant spray in late fall or early spring before buds begin to swell. If above sprays for Coryneum blight are made, peach leaf curl also will be controlled.
PEACHES: Leaf Curl - Prepare a 10-10-100 Bordeaux and apply at leaf fall or as a dormant spray in late fall or early spring before buds begin to swell. If above sprays for Coryneum blight are made, peach leaf curl also will be controlled.
WALNUTS: Walnut Blight - Apply 15 pounds with 10 pounds of lime in 100 gallons of water. Make application in early pre-bloom before catkin blooms are showing (10-20% pistilate) before or after rain. Use only if Bordeaux mixture has been shown to be non-phytotoxic in your area. If desired, add one-half gallon summer oil emulsion per 100 gallons of water. PRECAUTION: Addition of summer oil emulsion to pre-bloom and early bloom sprays may result in plant injury.
NOTE: Adding foliar nutritionals to spray mixtures containing EPA Copper Sulfate Crystal or other products and applying to citrus during the post bloom period when young fruit is present may result in spray burn.
Bacterial Blast - Prepare a 10-10-100 Bordeaux spray and apply in late October to early November or before fall rains begin. Make a complete coverage spray using 10 to 25 gallons per mature tree.
LEMON, ORANGE, GRAPEFRUIT: Phytophthora Brown Rot - Prepare a 3-4.5-100 Bordeaux where there is no history of copper injury or a 3-2-6-100 (Zinc Sulfate-Copper Sulfate Crystal-Hydrated Lime-Gallons of water) Bordeaux. Spray 6 gallons on skirt of tree 3 to 4 feet high and 2 to 4 gallons on trunk and ground under tree. If P. hibernalis is present, use 10 to 25 gallons to completely cover each tree. Apply in November or December just before or after first rain. In severe Brown Rot season, apply second application in January or February.
LEMON, ORANGE, GRAPEFRUIT: Septoria Fruit and Leaf Spot; Central California - Brown Rot and Zinc and Copper Deficiencies - Prepare a 3-2-6-100 Bordeaux and use 10 to 25 gallons to completely cover each tree. Apply in October, November or December before or just after first rain.
POTATO VINE KILL
Apply 10 lb/acre in 10 to 100 gallons of water (ground equipment) or in 5 to 10 gallons (aerial equipment) with Diquat at vine-kill to enhance vine desiccation and suppress late blight. Additional applications can be made with Diquat if needed to within 7 days of harvest. Copper Sulfate Crystal may be applied alone until harvest to suppress late blight.
NOTE: This product can be mixed with Diquat for use on potatoes in accordance with the most restrictive of label limitations and precautions. No label dosage rates should be exceeded.