Fertilome Copper Fungicide
If you’ve ever watched a favorite rose, tomato, or fruit tree start to spot, curl, or mildew up right when the season gets good, this is the kind of product you keep on the shelf. Ferti-lome Copper Fungicide is a broad-spectrum copper soap fungicide (and it can help with certain bacterial leaf spots, too) that’s easy to work into a simple spray routine: start early, cover the plant well, and stay consistent through wet weather.
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Copper Fungicide for Sale — Fast, Reliable Disease Protection for Roses, Veggies & More
Broad-Spectrum Copper Protection for Healthier Plants
Ferti-lome Copper Fungicide is a dependable, broad-spectrum copper soap spray for gardeners who want to stay ahead of the most common plant diseases before they take over. It helps protect against problems like powdery mildew, black spot, rust, and a wide range of leaf and fruit spots—making it a smart “one bottle” option for everything from roses and ornamentals to many fruits and vegetables (always follow the label for your specific plant). Copper works as a protective barrier on the plant surface, so it performs best when you spray early, coat thoroughly, and stay consistent through humid or rainy stretches.
Easy Preventive Spray Routine for Home Gardens
For best results, apply at the first sign of disease—or even better, preventively when weather conditions favor fungal issues—and reapply on a regular schedule, especially after rainfall. Aim for full coverage on both the tops and undersides of leaves, and choose the ready-to-use version for quick convenience or the concentrate for larger gardens and repeat applications. Like any copper product, it’s wise to test a small area first on sensitive plants, and avoid casual tank-mixing unless the label specifically allows it.
Pollinator-Friendly Use Tips for Worry-Free Spraying
Pollinator safety matters, and this product is a fungicide—not an insecticide—so it’s not designed to target bees or beneficial insects. The simplest way to be pollinator-friendly is to avoid spraying directly onto open blooms and apply when pollinators are least active (early morning or evening), then let the spray dry before bees return. Used thoughtfully and according to the label, it’s an easy addition to a garden routine that protects plant health while still respecting the busy work your pollinators are doing.
About Your Fertilome Copper Fungicide
What This Fungicide Does
Copper works by creating a protective barrier on plant surfaces that helps stop disease spores from establishing. That’s why copper products shine when you:
Spray preventively (before the disease takes off)
Coat thoroughly (top and bottom of leaves)
Stay on schedule through humid, rainy stretches
It’s a great “foundation spray” for gardeners who want one product that covers many common problems across the yard and garden.
Where You Can Use It
This is a flexible option for home landscapes and edible gardens, including:
Roses & ornamentals: black spot, powdery mildew, rust, leaf spots
Vegetables: blights and leaf spots (tomatoes, potatoes, cucurbits, and more—label-specific)
Fruits & vines: fruit rots, downy mildew, spots (label-specific)
Turf: certain listed diseases (label-specific)
Always follow the label crop list and directions for your specific plant and issue.
When to Spray for Best Results
Copper is most effective when you think like a disease: moisture + mild temps + tight foliage = trouble.
Use it like this:
Start early
Begin 2 weeks before the disease normally appears in your area, or at the first sign of trouble.
Repeat consistently
Reapply about every 7–10 days while conditions favor disease.
Rain resets the clock
Reapply after rain, especially during extended wet weather.
Time it for dry leaves
If you can, spray so you get a good window of dry weather after application.
How to Apply
If you’re using the Ready-to-Use (RTU) bottle
Spray all plant surfaces thoroughly, including the underside of leaves.
RTU products often include a coverage guideline (your listing/label will tell you the expected area treated).
If you’re using the Concentrate
Mix with water according to the label for your crop and disease.
Rates vary by plant and problem—use the label as your north star.
Pro tip: Coverage matters more than perfection. A light mist that misses half the leaf won’t do much—aim for an even, thorough coat.
Helpful Tips (So You Don’t Get Leaf Burn)
Copper is effective, but some plants can be sensitive—especially in certain conditions.
Test spray first on a small area if you’re treating a plant you’ve never sprayed before.
Roses: Some varieties can show copper sensitivity (often purple spotting).
Grapes: Some varieties may be sensitive—test before full coverage.
Cool, damp conditions: Some labels warn that phytotoxicity risk can rise in cool, wet weather (follow label cautions).
Don’t mix casually: Avoid tank-mixing unless the label specifically supports it.
| Type: | Liquid copper fungicide (copper soap) |
|---|---|
| Active ingredient: | Copper soap (copper octanoate) |
| Formulation: | Copper Soap 10% |
| Where to use: | Listed vegetables, fruits, ornamentals, and turf |
| Targets: | Powdery mildew, black spot, rust, leaf & fruit spots, anthracnose, blights (including tomato late blight prevention timing), peach leaf curl (dormant timing), and more (see label list) |
| Organic note: | Many packages are OMRI Listed (varies by SKU—check the listing/label) |
| Common sizes: | Concentrate (mixes with water) and Ready-to-Use (RTU spray) |
| Application rhythm: | Typically every 7–10 daysduring periods of high-pressure (and reapply after rain) |
