Monterey Liqui-Cop is not labeled for controlling diplodia tip blight or any other diseases on pine trees.
Clearys 3336F can be used for needle/diplodia tip blight on pine trees at a rate of 16-24 oz per 100 gallons of water. For smaller applications, you could also use Bonide INFUSE Systemic Disease Control.
Monterey Liqui-Cop should be applied when rainfall is not expected for atleast 24 hours to prevent the wind or rain from washing the application per the product label.
For timing recommendations and the affects of freezing temps during application, we would recommend contacting your County Extension Office in your area.
We recommend to keep all animals/pets out of the area until an application of Monterey Liqui-Cop has completely dried.
Please view the product label for more information.
While the Monterey Liqui-Cop is labeled to treat some rust, it is not labeled to treat coffee rust. You may contact Monterey Lawn & Garden at 559-499-2100 if you would like to see if this would be a permitted use of this product.
Monterey Liqui-Cop can be applied to Queen palms for Exosporium leaf spot, Phytophthora bud rot at 2 tsp per gallon. Per the product label: "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".
Unfortunately, Monterey Liqui-Cop is not labeled to be used on a lawn. If you are looking for liquid copper for your lawn, you can use Bonide Liquid Copper Fungicide Concentrate.
Per product label Monterey Liqui-Cop can be applied to peaches as a dormant or delayed dormant spray to protect buds and shoots during rainy period. Reapply up until late bud swell. Do not apply at less than 7 day intervals. Do not apply after full bloom. Do not apply more than 410 tsp. of LIQUI-COP (0.41 lbs. metallic copper) to Peaches/Nectarines per 1,000 sq. ft. per year.
We recommend that you avoid applications of Monterey Liqui-Cop on masonry. It is labeled for application to fruits, nuts, vegetables and other plants. Please see the product label for complete application instructions.
Monterey Liqui-Cop should be used within 24 hours of mixing, which would also apply to almost all products on the market that start out as concentrates and are mixed with water. The longer solution stays in the tank, the more it breaks down to no longer be effective, and can also eat away at the seals and gaskets of your sprayer to cause it to no longer work effectively.
Monterey Liqui-Cop is not labeled to be used on Japanese Maple trees.
For dothistroma needle blight, it appears that a copper fungicide such as Monterey Liqui-Cop would be recommended to protect new needles from infection. There is also a guide below that might help:
Monterey Liqui-Cop is labeled for citrus. It does not specifically list individual citrus fruits nor does it exclude any varieties from application if used as directed.
When using Monterey Liqui-Cop for fruit and nut crops, the mix ratio for peach trees is 2 tablespoons per gallon of water. The product label states, “apply as dormant spray and/or use ¼ tsp. as a post-bloom spray. Apply twice during the season, but do not use later than 3 weeks prior to harvest. Do not use at rates above those recommended. NOTICE: Slight loss of leaves may occur from post bloom use.”
Monterey Liqui-Cop is not labeled for use on blue spruce trees.
Without knowing what disease you are treating for specifically we could not tell you if the Monterey Liqui-Cop would work on the problem you are facing on the Staghorn fern, or what would be the correct mixing rate or retreatment interval would be. You are welcome to try the suggested ornamental rate on the label which is 2 teaspoons per gallon of water, and reapply every 7-14 days to see if this helps. We highly recommend getting the disease properly identified so you can be sure you are treating correctly.