What causes scale on cactus?

Cochineal Scale on Cactus

These small insects suck on cacti leaves. … The cottony, waxy mass is produced to shelter the female insects and their eggs. When the eggs hatch, the nymphs feed on the plant for three weeks, moving all around the plant.

>> Click to

Thereof, how do you get rid of scale on succulents?

If your succulent is infected with hard-bodied scale insects, the simplest way to treat them is to just remove the branch or leaves that are affected. Sad, but safe. Just like mealy bugs, you can dab scale insects with a cotton swab or paint brush and some rubbing alcohol.

Moreover, what does scale look like on cactus? Clusters of flat, circular, gray bumps or slender, white, scaly bumps appear on leaves. The bumps can be scraped or picked off. The surface of the cactus may be completely encrusted. The plant may be yellowed, or there may be yellow and brown spotting.

Also know, how do I get rid of the white stuff on my cactus?

When these white sticky spots first start to appear it is best to spray them off the cactus pads with a power nozzle attached at the end of your hose. If the infestation begins to get out of control, I suggest treating the areas by scrubbing them with insecticidal soap or unscented dish soap.

How do you kill cactus mites?

Try spraying 70% isopropyl alcohol, straight out of the bottle, not mixed with any water, onto your plants. It may seem a little scary to spray your beloved succulents with alcohol, but the alcohol evaporates quickly enough that it won’t damage your plants.

Why do cactus get white spots?

In most cases, white spots on Cacti are caused by a pest infestation. The white spots are protective shields of mealybugs or scales. Another reason for white spots on cacti can be fungus growth due to powdery mildew or the necrotic spot virus.

What kills scale?

When the scale feed on the sap, they ingest the toxic insecticide and are killed. Acephate, imidacloprid and dinotefuran are three commonly used systemic insecticides that are effective against scale. Treatment involves pouring the mixed insecticide at the base of the plant.

Does rubbing alcohol kill scale?

Rubbing Alcohol

A cotton swab dipped in alcohol and brushed onto the scales kills them; the alcohol dissolves the waxy coating that protects the pests.

What causes scale in succulents?

Scale insects suck the sap from succulent leaves through their piercing mouthparts. As the pests suck the sap, the succulent may appear partially collapsed or deflated. The insects drain sustenance from the plant, causing it to weaken.

How do you treat a cochineal scale on a cactus?

What plants are prone to scale?

Plants frequently infested with scale include Euonymous, magnolia, and fruit trees and shrubs. Mealybugs, a widespread garden pest, are also part of the soft or unarmored scale family. But mealybugs are somewhat larger than most scale insects, which makes them easier to identify as an insect rather than disease.

How fast does scale spread?

It takes a few weeks for the eggs to hatch into nymphs (aka scale crawlers), and then another 6-9 weeks for the crawlers to mature into adults. A scale crawler can move around on a plant (or migrate to surrounding plants!) and, once they find a good place to start feeding and mature into adults, they never move again.

Will vinegar kill mealybugs?

Apple cider vinegar stops the molting process of mealybugs, and will also help to kill the majority of pests on the plants. Apple cider vinegar is completely safe for your plants, and there is no harm to repeat the same mixture on consecutive days.

What does cactus fungus look like?

They may be round, irregular, raised, flat, and any other shape. Many are discolored but, again, the tones can range from yellow to brown and all the way to black. Some are corky, while others are weepy. These may ooze brown, rusty, or black fluid, evidence of severe infection.

How do you stop mealybugs?


  1. Dip cotton balls and swabs in alcohol and remove all visible mealybugs. …
  2. Mix 1 cup of rubbing alcohol with few drops of Dawn dish soap and 1 quart (32oz) of water. …
  3. Spray the whole plant, not only where mealybugs are visible. …
  4. Repeat the treatment once or twice a week until the issue is gone.

Thanks for Reading

Enjoyed this post? Share it with your networks.

Leave a Feedback!