Monterey Liqui-Cop

$19.69 - $200.39

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Not for Sale to: DC, ND

5 out of 5 stars Rating: 5

1 Review | 9 Q&A


{ $19.69 { $17.72 $20.23 $18.21 $49.63 $47.96 $193.31 $200.39
  Size/Description Price/Ea. Qty
Monterey Liqui-Cop pint (16 oz)

Buy 1: $19.69 each

Buy 2 or more: $17.72 each

Monterey Liqui-Cop - Quart quart (32 oz)

Buy 1: $20.23 each

Buy 2 or more: $18.21 each

Monterey Liqui-Cop - Gallon gallon (128 oz)

Buy 1: $49.63 each

Buy 2 or more: $47.96 each

Monterey Liqui-Cop - CASE (12 pints)Monterey Liqui-Cop - CASE (12 pints) case (12 pints)

Save! Get 12 for only $16.11 each

Monterey Liqui-Cop - CASE (12 quarts)Monterey Liqui-Cop - CASE (12 quarts) case (12 quarts)

Save! Get 12 for only $16.70 each

Total Price: $0.00

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For large order quotes, please call us at 1-866-581-7378.

Monterey Liqui-Cop

Monterey Liqui-Cop is a natural liquid application formulated to control and prevent diseases on fruit and nut trees, citrus trees, vegetables, and ornamental plants. Liqui-Cop is a very weatherproof product that does not easily wash away or degrade in sunlight. It does not require additives to make it more effective, and can be used in place of lime and sulfur applications. Liqui-Cop can be mixed with other horticultural oils.


The control of diseases with fungicides is based on PREVENTION. Plant surfaces must be completely covered with the fungicide to successfully prevent infection. Copper pesticides are considered preventative, not curative of plant diseases. Use the highest indicated rate when disease incidence is high or expected to be, depending on rainfall and temperature. The lower rate is suitable for general preventive sprays under normal conditions. Since weather conditions and disease incidence vary, consult your Agricultural Extension Service for timing and initial application.


Seek advice on identifying specific disease problems and solutions from your local Agricultural Extension Agent or other knowledgeable persons. Partially fill the spray tank/container with water. Add the desired amount of LIQUI-COP and continue filling the tank/container. If applied with other products, add LIQUI-COP last. Agitate the tank during mixing and application until tank is empty. A plastic or metal stirring stick should provide adequate agitation.

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  • 3 of 3 people found this review helpful:

    5 of 5 stars  Great Product for Veg & Tree Diseases
    By Donna in Arnaudville, LA on 11/03/2016

    I've used this for diseases on pecan, Magnolia fuscata (Banana Magnolia), fig, tomato, cabbage, cauliflower, broccoli, peppers. Works great if you catch it on time. I first started buying the pints, then finally found quarts. Use as directions state, usually 3 Tbsp per gallon.

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04/26/2015 Jane from Trinity, Tx

QWill Liqui-Cop treat fire blight on loquats?

ALiqui-Cop  will treat fire blight, but is not labeled for Loquats. Please contact your Cooperative Extension Office for the best recommendation in your area.

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06/20/2015 Carolyn from North Bend, Wa

QCan the Liqui-Cop be safely sprayed on the actual fruit?
I have pear and apple trees close together. The apple trees have apples on them. The pear trees are the only trees affected by a fungus. While I do not intend to spray the apple trees is it ok for the spray to get on the apples?

AThe Liqui-cop spray is designed to be used on edibles and fruit trees, however the mixing rates used during different times of application can vary, and vary from plant to plant. Please refer to this link for the Product Label and look at pages 2 and 3 for mixing and timing for application to Apples and Pears. 

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06/18/2013 John from Belfair, Wa

Qwill this work on apple scale and peach curl

ALiqui-Cop is not specifically labeled for apple scale or peach curl. We recommend contacting your Cooperative Extension Office and speaking with the master gardener for a recommendation for what products to use in your specific area.

0 of 1 people found this answer helpful.
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05/22/2016 Lauren from Princeton, New Jersey

QWill Monterey Liqui-Cop Fungicide work to prevent Lilac Blight?


Monterey Liqui-Cop is labeled for use on lilacs for leaf spot, but not for blight. We have seen articles that recommend using copper to treat this disease, but we cannot guarantee that the product will treat this disease. We do also offer Serenade Garden Disease Control Ready to Use, which is labeled for blights and for use on lilacs.

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01/31/2017 Perry

QIs this product approved for organic gardening?


No, Monterey Liqui-Cop†is not OMRI approved.

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05/07/2013 Troy from American Canyon Ca.

QDo I spray liqui-cop directly on fruit?

AYes, the Liqui-Cop is designed to be directly sprayed on Fruit and Nut trees, vegetables, and other plants. Please refer to the product label for exact dilutions for you needs and harvest times.

0 of 1 people found this answer helpful.
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10/24/2016 Teresa from Sparta

QHow much Monterey Liqui-Cop is recommended to treat roses with Black Spot?


Yes, Monetery Liqui-Cop is labeled to treat Black Spot on rose bushes.†Apply as a thorough coverage spray using 2 teaspoons of LIQUI-COP per gallon of water. Begin application at first sign of disease and repeat at 7-14 day intervals as needed. Use shorter interval during periods of frequent rains or when severe disease conditions persist. Do not apply more than 460 tsp. of LIQUI-COP (0.46 lbs. metallic copper) per 1,000 sq. ft. per year.

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02/16/2016 Michele from Scotts Mills

QIs Monterey Liqui-Cop safe for bees?
We spray our trees with LiquiCop and would like to start bee hives on our property. Will this product hurt the bees?


There should be no problem using Monterey Liqui-Cop in an area where there are bees. We would advise avoiding spraying directly to flower blossoms or during times when pollinators are present as the direct spray may have toxicity to bees or other insects if contacted directly.

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07/02/2017 Lisa from Medford, Oregon

QHow many days after spraying Monterey Liqui-Cop do I have to wait to eat the tomatoes?
I'm using Liqui-Cop for early blight on tomatoes. I don't want to ingest the spray residue. Will it safely wash off of tomatoes?


According to the manufacturer, your tomatoes can be harvested 4 days after your last application of Monterey Liqui-Cop and they will be safe to eat once you wash them thoroughly.

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