Should I Remove Yellow Leaves from Succulents? A Complete Care Guide

Agave Snout Weevil (or Sisal Weevil)

The most obvious sign of Agave Snout Weevil is damage right where leaves meet the plants stem. You’ll see that your Agave’s lower leaves usually show the first signs of wrinkling or wilting around May. Sometimes, there’s a tiny hole about the size of a pencil near the base of a leaf where the weevil burrowed to lay eggs. When this happens, your plant will most likely become loose in the ground if rocked gently, and eventually, your agave collapses and dies.

Solution: You can use a systemic insecticide with imidacloprid in early April and late May if you caught the infestation early enough. This treatment can also be applied to help stop it from spreading. But if the plant already has a lot of Snout Weevils on it, you should move it away from all the other plants nearby to protect them. Protect the soil around the plant roots with a cloth or tarp. This will help you find and kill any grubs you find. You can dump the grubs into a trash bag and sprinkle them with a broad-system insecticide.

Those dark, greasy blotches that are usually found on Agaves can be due to an eriophyid mite infestation. Aloe Mite is a microscopic mite that causes bubbly, tumorlike growth on aloes, especially along with leaf margins, flower spikes, and where the leaves meet the stem.

Remedy: Aloe Mite damage is irreversible and the plant must be discarded. To do this, simply put the infected plant in a plastic bag or incinerate it to prevent contaminating the other plants. In case the infestation is very minimal, you can treat your Aloe with a miticide according to the manufacturers instructions.

Black markings or spots are mainly caused by over-watering, sunburn, or sometimes bugs. It can also be caused by fungus, which usually affects&nbspAloes, Haworthias, and Gasterias.

Photo credit: mellent from Reddit.com

Remedy: Unfortunately, once a succulent leaf is damaged or scarred, the only way to hide the spot is to remove the leaves with spots. But this can be avoided by keeping the leaves dry and placing your succulent where there’s good airflow.

Succulent leaves change colors in response to the extreme conditions in their environment. This can be due to a lot of sun exposure, the weather turns really hot or really cold, or when the plant is not getting regular watering, which will cause the leaves to look less green.

Blotchy leaves may occur to succulents, especially Graptoverias, Aloes, and&nbspEcheverias, during the transition.

These small insects are initially a nuisance. They suck on&nbspcacti leaves, and in really serious infestation, can weaken and eventually kill the plant. This usually forms dots of white fluff on your cacti leaves, which can dye your fingertips red if you mash it.

Remedy: If infestation is minimal, you can treat your plant by simply blasting the affected area with a hose under pressure. Once the scale bugs have been exposed and weakened, apply insecticidal soap or a mix of ½ teaspoon of dish soap to a gallon of water. If the problem persists, cut off the worst pads at the joints and discard them.

Some succulent species like Crassulas and Aloes have the ability to change colors when happily stressed. This may sound bad, but it is completely normal and advisable if you want your plant to have its color pop. Change of colors to succulents usually happens due to 3 reasons: Water, Sunlight, and Temperature.

Read our “How to make my succulents turn to red?” article to learn more.

Crackling and scabby areas on leaves indicate mycoplasma bacteria infection, which causes the flat leaves of a normal plant to curl in on itself and fuse, forming a distinct tubular appearance.

Remedy: There’s no way to treat a plant infected by this bacteria other than to discard it.

Lower leaves naturally wither and die as the plant grows and produces new leaves from the center. Dead leaves can be easily pulled off, or they drop off on their own.

Source: https://beeandbasil.com/

Remedy:Generally speaking, it is better to leave the dead leaves on your plant and just remove those that have already fallen off into the soil to prevent insects and bugs from hiding in there. If you find the dead leaves unappealing, you can simply pull them away from your plant.

If the healthy, plump leaves of your succulent suddenly become wrinkled, then it is highly possible that your plant is drying out, which usually occurs when a succulent is underwatered or your plant is rooted in frozen ground.

Remedy: If your plants vital core is still healthy and has not been infested by pests, it can easily recover when watered or when the rains return.

You can check out our “How to spot and treat winter-damaged succulents” blog to learn more.

Shriveled Up or Withered Leaves

There are two possible reasons as to why leaves of your succulents may appear to shrivel, but the most common answer is due to&nbspunderwatering. If a succulent is underwatered, youll notice that its top leaves will start to appear withered and shriveled.

Remedy: Water your succulents more frequently and thoroughly. A good rule to remember is that succulents need more water during a heatwave or its growing season. Remember to allow the water to drain out of the drainage holes whenever you water and to let the soil dry out before watering again.

Source: https://unusualseeds.net/

The other reason why succulent leaves shriveled up is&nbspoverwatering. But unlike underwatering, an overwatered succulent appears limp, weak, and will look like it may fall off. Plus, the stem can also look puffy.

Remedy:Overwatered succulents can be treated by cutting back with your watering schedule and making sure that the top inch of the soil feels dry in between waterings. It is also essential to check the soil of your plant. Using a soil that is not good enough for your succulent may lead it to sit in wet for too long, leading it to have root rot. If necessary, repot your plant and make sure to use a well-draining potting mix.

If theres a need to repot your plant, do so. Just make sure to give it time to recover from being overwatered by allowing it to dry out for a few days before transplanting and watering again.

Heres another article that may help you tell the difference between an overwatered versus an underwatered succulent.

Some succulents, especially&nbspAeoniums, have very delicate leaves that can easily get brown marks or lines and blotches a day or 2 after something or someone has touched them.

Remedy: Unfortunately, abrasions are permanent. But over time, your succulent will grow new leaves and shed the old ones with the markings. This, however, can be prevented by making sure to hold the succulents by the stems only and make sure to not let them brush up against anything.

When you see signs of this issue, it is usually the result of overwatering or an irregular watering schedule. When this happens, the excess water builds up pressure, which stretches and collapses a leafs skin causing irregular bumps or blisters.

Photo credit: pandabear151 from Reddit.com

Remedy: A plant cannot heal once edema occurs, but you can reduce watering frequency and maintain regular intervals of drought to prevent edema from occurring in new leaves.

If you see an&nbspAgave with lesions, but no grease stains, then it is probably not eriophyid mite damage. Grease mites usually appear as dark, greasy blotches on agaves, which is the result of an eriophyid mite infestation.

Remedy: If Agave Grease Mite has contaminated more than one of your succulents, rotate at least two translaminar miticides, spraying all your plants from top to bottom in 4-week intervals.

Main reasons succulents get yellow leaves

FAQ

Should you cut off yellowing leaves?

Do not cut off any yellow leaves! – No matter what the reason is, do not cut off those yellow leaves. If you trim off yellowing leaves, you’re killing the plant temporarily. Put down the shears until you figure out what’s wrong and fix it.

Should you remove damaged succulent leaves?

If a succulent leaf gets damaged or scarred, the only way to hide the spot is to get rid of the leaves that have spots.