Yes, Monterey Liqui-Cop can be applied to grapes to control/prevent anthracose. As indicated on label, you will use 1 tsp of product into 1 gallon of water and apply just before bud break when the shoots are 6 – 8 inches long, just after bloom, and every 4 – 10 days throughout the season as needed. Foliar injury may occur on copper sensitive varieties
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.
On the Monterey Liqui-Cop Product Label next to Rose, there is a special note stating "1) Discoloration of foliage and/or blooms has been noted on some varieties." You are welcome to contact the manufacturer Monterey directly for further advice or feedback of their products use on your roses. You can reach them at 559) 499-2100.
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:
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.”
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.
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.
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.
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.
Monterey Liqui-Cop is not labeled for use on blue spruce trees.
