Plumeria rust, also known as Phakopsora meibomiae, is a fungal disease that affects plumeria trees and other members of the Apocynaceae family. The fungus infects leaves and causes them to turn yellow and brown, with the leaf edges showing red or purple spots.
Plumeria rust is by far the most devastating disease I’ve ever encountered when growing Plumeria, or Cattleya. If you read our article on how to grow a Plumeria, Systemic Fungicide For Plumeria Rust, plumeria rust home remedy, and plumeria fungus treatment, you know that plumeria rust fungus is less of a threat than the bacteria pythium and phytophthora, especially if using distilled water with your plant but it can still destroy an entire collection in absolutely no time at all.
When treating plumeria rust, it’s important to apply the fungicide early in the infection cycle before symptoms appear on leaves. This helps prevent the further spread of the disease throughout your plantings.
The growth of this fungus is both fast and aggressive in the search for nutrients and moisture. The official Plumeria Rust Fungus Pathogen is called Guignardia citricarpa or as it’s otherwise known: Geosmithia Citricarpa. Systemic fungicides are amongst the most popular pesticides used on a large scale today. They offer unparalleled mobility, capable of protecting plants over an extensive area. This can work in your favor as systemic pesticides can help to treat a fungal infection spreading across your plumeria plant by moving its active ingredients into the veins of the infected leaves.
Symptoms of Plumeria Rust
Plumeria rust is a devastating fungal disease that kills plumeria, an Asian flowering tree prized for its lovely fragrance. The disease is caused by the fungus Phragmidium luteovelum. Plumeria rust affects both the leaves and flowers of a plumeria but does not kill it immediately. Most common plumerias are resistant to plumeria rust, but other species are susceptible. Treating plumeria rust is difficult because the soil surrounding the tree can be infected with the disease as well.
Plumeria rust is a fungal infection that affects plumeria trees, especially those grown in warm climates. The symptoms of plumeria rust include yellowing leaves and spots on the stems, flowers, and fruit of the tree. This can lead to poor growth and eventually death if left untreated. The best way to prevent this disease is by using systemic fungicides that treat the entire plant systemically rather than just being applied topically (on top).
Systemic fungicide is the most effective solution for plumeria rust, but it can be tricky to apply.
How Systemic Fungicide Works:
Systemic fungicides work by being absorbed by the tree’s roots and transported throughout its vascular system. This means that they’re able to deliver their active ingredients to every part of your plant’s body, including its leaves and branches. As a result, systemic fungicides are effective at treating many diseases that affect plumeria trees because they can prevent spores from spreading throughout an entire tree’s vascular system.
In addition to being absorbed into plants’ vascular systems through roots, these types of treatments also kill off fungal cells that live on the surface of leaves (called epiphytes) when applied as foliar sprays because they’re absorbed directly through leaf surfaces too.
What Is the Best Fungicide for Plumeria?
Plumeria is a beautiful plant that’s easy to grow and maintain, but it can be susceptible to rust.
Rust is caused by a fungus called Phymatotrichopsis omnivora, which thrives in humid, warm environments, which is exactly where plumeria loves to be. If you’ve never had an issue with rust before, it can be disheartening when you notice your plants covered with orange patches of rust.
However, if you feel compelled to keep the rust at bay, you can apply fungicides containing myclobutanil such as Spectracide Immunox on a weekly spray schedule as soon as the very first appearance of the disease.
How Do You Keep Plumerias From Rusting?
Plumeria plants are beautiful tropical flowers that can be planted in your garden or used as a houseplant. They are easy to care for, but they are susceptible to rust disease. Rust causes spots on the leaves, which can lead to infection. While most plants have some form of rust, plumeria’s susceptibility can make it difficult to grow them indoors or outdoors.
Rust is caused by spores that land on the plant’s leaves and grow into a fungus that produces orange-yellow spots on the leaves. The fungus grows during humid weather and can be spread by wind and water runoff. It thrives in shady areas with poor air circulation, so keeping your plumeria in an area with good lighting will help prevent infections from forming.
The best way to prevent rust is through good management practices such as mulching around your plant’s root zone with organic compost or bark chips (not wood shavings). This will help improve soil quality and keep moisture levels low enough for proper growth but not too dry where fungi might flourish. Having plenty of space between your plants will also help maintain good air circulation around each one so that spores don’t have anywhere to land and grow into infections.
List of Fungicides to Control Plumeria Rust
Plumeria rust is a fungal disease that attacks Plumeria plants and causes the leaves to turn brown and drop off the plant. It can spread quickly, which makes it important to treat the plant as soon as possible.
The good news is that there are several fungicides that can be used to treat plumeria rust and keep your plant healthy.
Bonide 148 Infuse Systemic Disease Control Fungicide Concentrate, 16 oz, BRNSTBLSUP
Price: $17.64
Features :
- CONTROLS A VARIETY OF DISEASES – Infuse prevents and stops black spots, dollar spots, rust, brown patch, powdery mildew, leaf spot, snow mold, and many more.
- TOTAL COVERAGE OF LAWN – Provides a broad spectrum of disease control for roses, flowers, lawns, trees, shrubs, and multiple other garden plants. It is also proven to encourage turf rooting and improve color in woody shrubs.
- WON’T WASH AWAY – Fungicide is absorbed into the plant ensuring it can’t be washed off by rain or sprinklers after the spray has dried. For certain diseases, Infuse can work for up to 4 weeks.
- USE AT FIRST SIGN – This product is highly effective when it is used to prevent diseases or applied at the first sign of disease. Consider treating early in the season.
- FLEXIBLE APPLICATION – Apply to your garden by using a pump-up sprayer, water-style sprayer, or dial-style hose-end sprayer. Remember to read the label directions and follow them accordingly before application.
Additional Info :
| Color | BRNSTBLSUP |
| Item Dimensions | |
| Height | 5 Inches |
| Width | 1 Inch |
| Length | 3 Inches |
| Weight | 1 Pound |
BioAdvanced 701250 Disease Control for Roses, Flowers and Shrubs Garden Fungicide, 32-Ounce, Concentrate
Price: $17.48
Features :
- SYSTEMIC FORMULA: The systemic formula cures and prevents listed diseases for roses, flowers, shrubs, or even houseplants
- DISEASE CONTROL: Fungicide controls Black Spots, Powdery Mildew, Crabapple Scab, Boxwood Blight, and more
- RAINPROOF PROTECTION: Systemic rainproof protection lasts up to 2 weeks
- COVERAGE AREA: Makes up to 42 gallons of spray
- RESTRICTIONS: Not for sale in NY
Additional Info :
| Color | Concentrate |
| Item Dimensions | |
| Height | 10.25 Inches |
| Width | 5 Inches |
| Length | 2.65 Inches |
| Weight | 2 Pounds |
Scotts DiseaseEx Lawn Fungicide – Fungus Control, Fast Acting, Treats up to 5,000 sq. ft., 10 lb.
Price: $19.47
Features :
- Don’t let brown spots or mildew block your path to a beautiful yard; Scotts DiseaseEx Lawn Fungicide is a fast-acting formula that stops and prevents 26 common lawn-blemishing diseases
- PREVENTS AND CONTROLS: This lawn fungus treatment is preventative when used on lawns to control brown spots and rings before they appear, and curative when applied on lawns showing signs of disease
- CURES 26 LAWN DISEASE TYPES: Offers broad spectrum disease prevention and control against Brown Patch, Stem and Stripe Rust, Red Thread, Powdery Mildew, Necrotic Ring Spot, Summer Patch, Yellow Patch, and more listed diseases
- FAST ACTING: Starts working within 24 hours of treatment; the systemic fungicide formula controls common broad-spectrum diseases for up to 4 weeks
- USE WITH CONFIDENCE: Apply this lawn fungus control with a Scotts spreader at a uniform coverage; a 10 lb. bag can treat up to 5,000 sq. ft.; people and pets may re-enter the treated area after application
Additional Info :
| Color | for Brown Patch, Yellow Patch, stem and Stripe Rust, Red Thread, and More As Listed |
| Item Dimensions | |
| Height | 9.5 Inches |
| Width | 13 Inches |
| Length | 2.5 Inches |
| Weight | 7 Pounds |
Bonide (BND60514) – Infuse Systemic Disease Control, Granular Fungicide (7.5 lb.)
Price: $23.99
Features :
- CONTROLS A VARIETY OF DISEASES – Infuse prevents and stops black spots, dollar spots, rust, brown patch, powdery mildew, leaf spot, snow mold, and many more.
- TOTAL COVERAGE OF LAWN – Provides a broad spectrum of disease control for roses, flowers, lawns, trees, shrubs, and multiple other garden plants. It is also proven to encourage turf rooting and improve color in woody shrubs.
- USE ON COOL AND WARM SEASON GRASSES – This product may be used on all cool and warm season grasses such as Bentgrass, Bluegrass, Bermudagrass, Fescue, Ryegrass, St. Augustinegrass Zoysiagrass, or their mixtures in residential turf sites.
- USE AT FIRST SIGN – This product is highly effective when it is used to prevent diseases or applied at the first sign of disease. Consider treating early in the season.
- 5,000 SQUARE FEET OF COVERAGE – This product can protect 5,000 square feet of your backyard, lawn, and other outdoor areas. Apply under dry or moist leaf/soil conditions.
Additional Info :
| Color | Granules |
| Item Dimensions | |
| Height | 15.5 Inches |
| Width | 4.5 Inches |
| Length | 14.5 Inches |
| Weight | 7.5 Pounds |
BioAdvanced 043929293566 Bayer Advanced 701110A All in One Rose and Flower Care Granules, 4-Pou, 4-Pound, Assorted
Price: $21.97
Features :
- PLANT FOOD: Promotes strong roots and beautiful blooms
- INSECT KILLER: Kills Japanese Beetles, Aphids, Leafhoppers, and other listed pests
- DISEASE CONTROL: Fungicide controls Black Spots, Powdery Mildew, Rust, Southern Blight, and more
- RAINPROOF PROTECTION: Systemic rainproof protection lasts up to 6 weeks and treats up to 32 roses
- RESTRICTIONS: Not for sale in NY, CT, MD, VT
Additional Info :
| Color | Assorted |
| Item Dimensions | |
| Height | 11.3 Inches |
| Width | 3.7 Inches |
| Length | 7.3 Inches |
| Weight | 4.3 Pounds |
In Conclusion,
Systemic fungicide is the best method for controlling plumeria rust.
Plumeria rust is a serious disease that can affect the health of your plumeria plant. It is important to take action as soon as possible to avoid unnecessary damage or loss of your tree.
In order to protect your trees from plumeria rust, it is important that you start by pruning them regularly and taking precautions against other diseases such as leaf spots and powdery mildew. You should also make sure that you are keeping your tree well-watered at all times during the year and prune off any dead branches or leaves immediately after they appear on your tree.
Another important thing you can do is apply systemic fungicide once a month throughout the year to help prevent further damage from occurring on your trees.