Pink Mold On Pecans: How To Treat Pecan Pink Mold

Pink Mold On Pecans: How To Treat Pecan Pink Mold

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By: Mary H. Dyer, Credentialed Garden Writer

Pink mold on pecans is a secondary disease that develops when nuts have previously been injured, usually by a fungal disease known as pecan scab. The key to treating pecan pink mold is to address the preliminary problem; pecans with pink mold can usually be avoided if pecan scab fungus is properly controlled. Read on for more information on pecan pink mold.

Symptoms of Pink Mold on Pecans

Initially, pink mold enters through cracks and fissures in the pecans, which exposes damaged tissue within the green hull. If conditions are moist, the pink mold grows rapidly and enters the interior of the pecan, destroying the nut and leaving a mass of pink powder in its place. A rancid odor is often present.

How to Treat Pecan Pink Mold

Management of pecan scab disease usually takes care of any problem with pink mold on pecans. Pecan scab disease is a common but very destructive disease that affects leaves, nuts and twigs, and is especially prominent during wet, humid conditions. You may not be able to completely eliminate the disease, but you can reduce the presence of pathogens, thus minimizing the risk of pecan pink mold.

If you’re planting new pecan trees, always start with disease-resistant cultivars. Your local cooperative extension office can provide advice on the best varieties for your area.

Plant pecans where the trees receive the best possible air circulation. Allow plenty of space between trees. Similarly, thin and prune the tree properly to maintain healthy airflow.

Keep the area clean. Remove debris on the ground around the tree, as leaves, twigs, nuts and other plant matter may harbor disease pathogens. Plowing debris into the soil may help prevent infection.

Implement a fungicide spray program. Your local cooperative extension office or a knowledgeable greenhouse or nursery can help you determine the best product for your particular situation.

The first spray treatment should be at the pre-pollination stage, as soon as the tree emerges from dormancy in early spring. Reapply fungicide after two and four weeks. At that point, spray every three weeks for the remainder of the growing season.

Read the label carefully and use the proper tools for spraying fungicides. Spray the tree thoroughly to create a thin film on all leaf surfaces.

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The most common type of mold found in homes is mildew. Mildew is a surface mold that grows in warm, damp places like your bathroom and on fabrics and books stored in damp basements. Mildew begins as a gray or white powdery colony. It will turn black or brown if not removed promptly and often looks like soil accumulation. To test if the surface is covered with mildew or just dirt, dab the stain with a cotton swab dipped in household chlorine bleach. If the stain lightens or disappears after two or three minutes, it's mildew. If not, it's probably just dirt.

If you detect a musty odor anywhere in your home, then you have a high concentration of mold. It can be coming from a hamper filled with damp towels, from a damp crawlspace under your home, or carpets that have mold growing in the padding. It's definitely time to take action to get rid of the problem.

Now you know that all mildew is mold but not all molds are mildew. Mildew can discolor and slowly harm surfaces but there are much more dangerous molds that can damage the structure of your home. If you see a black or green mold that is fuzzy or slimy, and the drywall or wood underneath is soft or crumbles, there is irreversible rot, and the mold and the damaged surfaces must be removed immediately.

Downy Spot

This fungal leaf spot, caused by Mycosphaerella caryigena, can cause early leaf loss on susceptible cultivars like Stuart, Pawnee and Moneymaker. Repeated defoliation from severe downy spot infection can cause losses in nut production and tree vigor. Downy spot first appears on the lower surface of young foliage in late spring as small yellow spots. These spots may turn white as spores are produced. Later in the season, the lesions turn brown and begin to appear on the upper surface of the leaf. Heavily infected leaves drop earlier than healthy ones in the fall. Downy spot survives the winter in fallen leaves. Spores are released prior to budbreak. Downy spot begins in the lower parts of the tree and spreads upward.

Prevention & Treatment: Plant resistant or tolerant varieties such as Schley, Success, Mahan and Western. Unfortunately, Schley and Western are highly susceptible to pecan scab and Success and Western are susceptible to shuck dieback. Remove and destroy fallen leaves. Apply a preventative fungicide spray program.

#4) Moldy Wood

Moldy wood should also be avoided when building fires in your fireplace. Mold fungi is found virtually everywhere, including both indoor and outdoor environments. While there are different types of mold, they all require four basic things to thrive: food, moisture, heat and oxygen. Unfortunately, wood is the perfect source of food for mold fungi. When mold spores land on a piece of wood, they may begin to feast on it, especially if the wood is wet.

Choosing dry hardwood firewood can prevent mold growth, but for other types of firewood, there’s the potential for mold. And while a small patch of green- or yellow-covered mold may look harmless, burning it will release airborne pollutants that fills your home. Therefore, you shouldn’t burn moldy wood in your fireplace.

How to Get Rid of Mold on Basement Walls

Removing mold from the surfaces in your home can be done in several different ways, depending on where it is located and how big the spot is. Unless you want a professional to conduct mold remediation for severe mold infestations, you can acquire most mold remover supplies from your local home improvement store or hardware store.

Of course, we recommend hiring an inspector or investigating the type of mold or mildew first before you begin to tackle it, as some types of organic material are more dangerous than others. Otherwise, how to kill mold in a small area, no greater than a 10″ x 10″ spot, is a relatively simple process that doesn’t take a lot of time or energy.

Removing mold from wood is a little different than eliminating the problem from concrete, so pay close attention to the base material you are working with before applying a cleaning solution. How to clean painted walls also requires special care. You don’t want to damage the surface while trying to get rid of mold or mildew.

How to Clean Mold from Concrete Basement Walls with Hydrogen Peroxide

Hydrogen peroxide is a versatile and effective cleaner that’s a fungicide, virucide, and bactericide. There are dozens of peroxide uses for around the home, both inside and out.

Disinfecting with hydrogen peroxide will kill virtually anything that’s growing on your basement walls, including mold! It’s also ideal to clean concrete basement floors, too.

If you’re wondering how to clean mold from concrete basement walls or need to start cleaning brick walls in the basement or carport with this concrete cleaner, here’s how.

Hydrogen Peroxide Method

To kill mold on concrete basement walls or for an ideal DIY mildew remover, pour 3% hydrogen peroxide into a spray bottle. Saturate the walls with the peroxide, then let it sit for up to 30 minutes. Clean mold off walls by scrubbing the area thoroughly with a bristle brush after about ten minutes to help to lift any residual mold out of the pores in the concrete.

If you can, hose off the walls or scrub them down with warm water to remove any cling-on spores when you finish and leave the walls clean and shiny. Dry with a clean towel to eliminate water spots that could encourage more mold to grow.

Peroxide is an excellent option not only for mold removal but to get rid of other types of stains, as well, especially for how to clean white walls that may have mold or mildew.

Peroxide can be helpful to clean walls before painting, too, to ensure that you have a nice smooth surface for the paint. Keep a bottle or two on hand for both medicinal and cleaning situations.

Removing Mold from Cinder Block Walls with Borax

Borax is a trustworthy and effective cleaner that’s well-known for its cleansing and deodorizing properties. Since Borax inhibits mold growth, it’s an excellent cleaning solution for removing mold from cinder block walls and other large areas. You don’t even need to clean it off when you’re finished.

Borax Mold Removal

  • 1 cup Borax
  • 1 gal hot water
  • HEPA-certified vacuum cleaner
  • Bucket
  • Scrub brush or bristle brush

Before you use one of our ways to clean cement of mold or mildew, vacuum all your moldy surfaces with a HEPA-certified vacuum minimize the number of spores that end up airborne. Mix the Borax and water in a bucket to create your cleaning solution.

Scrub any moldy surfaces thoroughly and remove visible mold particles. Let the Borax solution sit on the surface for a little while if you don’t wash it off, it will inhibit future mold growth. Use this solution to stop moss from growing on bricks outside, too.

Kill Mold on Non-Porous Surfaces with Bleach

Bleach is an excellent disinfectant and mold-killer, but the problem is that it’s not useful on porous surfaces. Bleach doesn’t penetrate surfaces well, so while it won’t be effective on concrete, drywall, or unsealed grout, it’ll work wonders on sealed surfaces.

Mold Removal with Bleach

  • 1 cup bleach
  • 1 gal water
  • Spray bottle (optional)
  • Sponge and bucket (optional)

For this method, dilute one cup of bleach with at least one gallon of water, then spray or wipe the bleach solution onto any mold-covered surfaces. Bleach works best on non-porous surfaces like glass or sealed tile.

When working with bleach, be sure to wear protective gear such as rubber gloves, eye protection, and a respirator, especially in poorly-ventilated areas like crawl spaces and basements. Never mix vinegar or ammonia with bleach.

Kill Mold Safely with Vinegar

One of the safest DIY cleaners for killing mold is vinegar. Vinegar is a mild acid that doesn’t smell particularly pleasant, but it does its job with mildew. However, vinegar does not kill 100% of mold types, so do your research or test a small area before committing to it.

Kill Mold with Vinegar

To clean mold with vinegar, liberally spray moldy areas with the undiluted white vinegar. Leave it on the moldy areas for at least an hour to penetrate and kill any roots embedded in the walls or floor.

Optionally, you may spray a solution of baking soda and water onto the vinegar-saturated areas to up its mold-killing power. Wipe down the surface with clean water to finish the job. White vinegar is an excellent deck mold cleaner, too!

If your basement smells like sewage, you may have a clog in the drain in the floor or in the toilet in the bathroom. Pour a mixture of vinegar, water, and baking soda into the drain to release the clog and quickly eliminate that sewage smell in the basement.

Repeat applications may be necessary if the clog does not break up the first time. However, after the clog clears, your basement will smell fresh and clean again.

Kill Mold Naturally with Tea Tree Oil

Believe it or not, one of the uses for tea tree oil is a fungicide that’s surprisingly effective at killing molds and mildews on many different surfaces, from clothes to walls to shower stalls. If you’re looking for a healthy, holistic, pleasant-smelling way to kill mold in your home, tea tree oil might be just the ticket.

Tea Tree Oil Recipe

  • 1 tsp tea tree oil
  • 1 cup of water
  • Spray bottle
  • Scrub brush, sponge, or rag (optional)

If you’re cleaning mold in a shower or other well-traveled area, you may be able to spray the area with the tea tree oil solution and leave it. Since you’re only using one part tea tree oil for every 48 parts water, there’s no need to rinse!

If the area is visibly moldy, you may want to scrub the mold away with a sponge or rag soaked in the tea tree solution instead. In both scenarios, leave the cleaner on the surface without rinsing to help discourage future mold growth. Watch tea tree oil use around pets, as it can be harmful to them if ingested.

Banish Mold Infestations with Professional Help

What gets rid of black mold? Most of the cleaners we’ve mentioned can snuff out black mold infestations, but we recommend getting professional help for significant black mold growth. This is because Stachybotrys chartarum, or black mold, can be harmful if breathed in large quantities.

If a basement mold problem is really severe, mold removal specialists might turn to fumigation to eradicate the infestation. Whichever method they choose to take care of your mold problem, you can rest assured that a professional will do a thorough job to prevent the black mold areas from returning.

If you don’t eradicate the source of the moisture that caused the mold, you could see more mold, but a professional will eradicate all mold spores and roots from an infestation so that the same colony cannot grow back, particularly in the same area.

Dehumidifiers and waterproofing paint can be useful for helping to stave off future mold issues. Wet, moldy surfaces like carpeting and drywall are often too far gone to be salvaged and need a replacement instead.


How did you like our guide on how to remove mold from basement walls and other surfaces? If you liked these mold-killing tips, make sure to share this guide on how to remove mold from basement walls with all of your friends on Facebook and Pinterest!

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