Your succulent garden naturally contains insects and pests. Do not be alarmed and start taking preventative actions right away if your plant has a pest infestation. The Best Pesticides & Insecticides for Your Succulents are urgently needed because these insects can infect healthy plants and wreck your complete flowering collection.
Is soap that kills insects okay for cacti?
Use insecticidal soap, but keep in mind that some plants might be harmed by it. Oils and waxes on cacti may make plants more vulnerable to harm from washing. To determine whether a product is safe for your plant, carefully read the label. Before spraying the entire plant, it is a good idea to test a tiny portion of the plant.
What may I use as a pest repellent on succulents?
When you detect mealy bugs on your succulents, the first thing you should do is quarantine the affected plants and relocate them away from other plants. Check the healthy plants for any indications of mealy bugs.
After that, be ready to clean your contaminated plants by removing them from the pot and giving them a thorough rinsing under running water. In hot, soapy water, wash the pot. Replant with fresh soil after allowing the plant and pot to dry out. Old dirt should be disposed of in the regular trash, not the green bin.
If you don’t instantly have ready-mix succulent soil at your home, you can put the soil in an oven-safe container covered with foil and bake it for at least 30 minutes, or until the soil reaches 180 degrees Fahrenheit. After letting cool, plant again. Since there may still be mealy bug eggs in the old soil, we advise getting new soil.
Now let’s get to the most crucial step: mealybug elimination. Pesticides made of chemicals are generally the first thing that springs to mind. We don’t advise using them, though, as some of them can be highly damaging to succulents. Here are some secure choices we’ve tried and think are really helpful:
Neem oil and soap mixtures or rubbing alcohol (isopropyl alcohol) come first. The cheapest and most efficient approach for controlling aphids, mealybugs, and spider mites is to use 75 percent rubbing alcohol. Simply give the succulents a good spraying and leave them. The bug will start to turn brown, which indicates that it is dead. The plants won’t be harmed by the alcohol because it will entirely evaporate in a short period of time. Perform this each week until you no longer notice any bugs.  
Another secure insecticide that can be applied directly to outbreaks is neem oil. It has the ability to instantly eliminate all stages of mealybugs. Neem oil at a concentration of 5% in water is combined with a few drops of soap before being sprayed all over your succulent. Keep in mind that using concentrated neem oil could burn your succulents.  
If you don’t have a spray bottle, you might paint-brush any area where mealy bugs are present. After a few hours, water the plant to remove the dead insects. You can readily find rubbing alcohol and neem oil online or at your neighborhood pharmacy. To prevent water stains or sunburn when using neem oil or rubbing alcohol, be sure to keep the plant out of direct sunlight. For a few days, keep them away from the window and direct sunshine.  
If there are still some mealy bugs on your plant, check it again and continue the procedure for a few days. Then, as a preventative step, spray once again after a week. Neem oil can also be sprayed into the soil to eliminate any bugs or eggs that may be lurking there. Put the plant back in its original location and continue inspecting every three weeks if mealy bugs don’t recur after thoroughly checking and spraying for a few weeks.
Neem oil and rubbing alcohol are relatively secure, but there is a danger they could harm your succulent.
So we advise utilizing ladybugs as another natural cure. Yes, you heard correctly! These adorable ladybugs are all-natural enemies of mealybug and other troublesome pests. However, we advise utilizing ladybugs only as a preventative measure and when your plant is in the early stages of infestation.
Which plants should not be treated with insecticidal soap?
There are various ways that soapy water insecticides for plants operate. To begin with, the exoskeletons of these insects are dried up by the soaps, which leads to cell collapse.
The bug then suffocates as a result of the oils in insecticidal soap preventing bugs from breathing. But particularly which bugs can you manage using this method?
Which Pests Can Be Controlled With Insecticidal Soap?
With this kind of product, some pests can be rather well controlled. Additionally, some pests are comparatively resistant to insecticidal soap. The following are some pests you can manage:
- Earwigs
- Mites
- Thrips
- Scales
- Fleas
- Chiggers.
Scales and caterpillars, which both munch their way through plants, are less resistant to this method of gardening care.
Additionally, some plants should not be treated with insecticidal soaps. Gardenias, peas, ferns, cucumbers, and beans are a few examples. These are all more vulnerable to harm from soaps.
How To Apply Insecticidal Soap To Control Pests
You will apply the product to your plants in the same manner regardless of the kind of bug you want to control. Make sure you have a garden sprayer on available because you’ll need it to apply the soap.
For most gardeners, using a readymade insecticidal soap is the simplest and most practical option, but you can also manufacture your own with store-bought soap if it doesn’t contain any additives. Later, we’ll go into greater detail on how to produce your own insecticidal soap.
Some gardeners increase the spray’s effectiveness by adding additional oil (about one cup), although this is not required.
Add Bacillus Thuringiensis For A Boost
However, if you also need to prevent or cure fungus infestations or other pest infestations that aren’t managed by insecticidal soap, you can always add additional ingredients like bacillus thuringiensis or copper fungicide.
The solution’s effectiveness won’t last indefinitely, so make plans to apply it right now. Spray the tops and bottoms of the leaves, ideally concentrating on any visible insects.
Before using the spray on the entire plant, test it on a few leaves. It’s crucial to remember that insecticidal soap requires contact with the pest in order to be effective, unlike other pesticides.
Applying it while it’s raining outside will give you the best results. As a result, you should spray plants early in the morning or late at night. In this manner, the solution won’t evaporate as quickly as it may in the summer.
Can dish soap be sprayed on succulents?
Light: Succulents typically require 6 hours of light per day. Having said that, plants can be scorched or burned by six hours of direct sunlight. A south-facing window is a terrific site for your succulent garden, but once more, make sure that it doesn’t get too much sunlight. According to blogger Succulents and Sunshine, placing your succulents in an east-facing window is the best option. Things to keep in mind include the fact that plants will start to extend outward toward the light the further they are from a window (some succulents don’t look too well stretched out).
Water: One of the quickest ways to harm your succulents is to overwater them. The roots enjoy being sopped in water, but they rapidly dry off thereafter. Therefore, your succulents will perish fast from overwatering if you keep the soil moist every day. However, simply misting them can sometimes result in their death because their roots are not receiving enough water. Simply put, when watering succulents, give them adequate water, but wait until the soil is fully dry before giving them more. Obviously, how often you water will depend on the container and the amount of light. You might discover that you need to water your succulents more frequently than you would if you kept them in less direct sunlight.
Succulents can withstand extremely hot conditions, but in the summer they prefer temperatures between 70 and 80 degrees. Succulents prefer temperatures between 50 and 60 degrees when it comes to the winter, when they are more “dormant.”
Fungus gnats and mealy bugs are two typical bugs that you could encounter. In general, fungus gnats are present if you notice little flies in your containers. This is because you’re keeping the soil too wet and giving the gnats a comfortable place to deposit their eggs. Allowing your soil to totally dry out in between waterings is the best approach to prevent or deal with this issue. Additionally, check to see that your soil has good drainage and won’t retain extra rainwater. Second, the mealy bug, which usually appears where the stem and leaves converge. They resemble a sticky, white insect. There are two potential remedies if your succulent contracts mealy bugs. Spray on the problematic areas after combining a little dish soap and water in a spray bottle. The second option is to spray the plant with rubbing alcohol, this time with a spray bottle. Be sure to lightly treat the soil as well to kill any eggs. Alternately, you might dip a Q-tip in the rubbing alcohol and apply it straight on the bug.
Will my succulents be harmed by soapy water?
Although any soluble soap will work, liquid soaps are kinder to plants. Even less harsh will be insecticidal soap. However, you can just rinse after using dishwashing liquid. Plant the cactus only when it has totally dried out.
Does soap that kills insects hurt plants?
Some of the first insecticides that gardeners used were soap sprays; to make an efficient soap insecticide, gardeners would boil water with Fels-Naptha soap. These “traditional” treatments eventually lost popularity as more potent and hazardous drugs took their place. Insecticidal soap sprays, however, have experienced a significant resurgence in popularity today as interest in gardening that is more natural and uses fewer chemicals continues to develop. Most garden centers carry these items, but you may also make your own if you can find the necessary components.
What Is Insecticidal Soap?
Gardeners frequently use insecticidal soap, which is prepared with potassium salts of fatty acids, to control insect and pest infestations on their plants. Sprays of soap are useful against insects with soft bodies like mealybugs and aphids. Plants are not harmed by insecticidal soap.
Why do my succulents have tiny bugs on them?
Mealybugs are disgusting little insects that like munching on succulent plants’ fresh growth. It’s difficult to pinpoint the specific reason why they appear, however overwatering and overfertilizing are frequently to blame. Due to the more mild temperatures, they frequently appear on indoor plants, although they can also be seen on outdoor succulents.
In the crevices of your succulent, these tiny creatures normally hang out in a white substance that resembles a web. Right where the leaves meet the stem is where they like to hide. They are consequently difficult to see and to kill.
Mealybugs can swiftly spread throughout a succulent and to other succulents nearby if they aren’t treated very once. They move so swiftly, which is both impressive and annoying. They consume the succulent as they move. This frequently stunts the plant’s growth, making the new growth oddly shaped or smaller than typical. If they remain too long, they could also leave some dents in the leaves.
How are mites on succulents treated?
Spider mites harm succulents and cacti alike by draining the juices from the plants. Webbing and tiny brown dots on the new growth of succulent plants are the first indicators that you have spider mites. These small “insects” are more closely linked to spiders than to actual insects. When seen with the naked eye, they resemble dust.
In reality, red spider mites are reddish-brown in color, and they like hot, dry environments. Misting and above watering might lessen their occurrence since they don’t like dampness. The innocuous, much larger red mite, which is a harmless predator mite, should not be mistaken with these red spider mites. Follow the manufacturer’s instructions when using a miticide to completely get rid of these mites from the plant. Phytoseiulus persimilis is another predator that can be utilized as a biological control. In addition to needing temperatures above 70 F (21 C), this predator finds it challenging to keep a balance between prey and predator.
There are other pests besides spider mites that harm succulent plants. Eriophyid mites are those that feed on aloe and also affect other species including Haworthia and Gasteri. These mites have two pairs of legs as opposed to the four sets of legs found on spider mites.
The poison that this mite injects into the tissue causes galling or other aberrant development as it eats. Aloe succulent mite damage is irreparable in aloe plants, and the plant needs to be thrown out. To avoid contaminating other plants, put sick plants in a garbage bag or burn them. Use a miticide on the plant as directed by the manufacturer if the infestation is not severe. Aloes that can withstand freezing temperatures can be exposed to them to kill the mites.
The two-spotted mite, another type of mite, prefers to eat yucca. This mite appears pink, yellow-green, or red under a microscope, with two dark dots on its body. They lack wings and antennae but have eight legs. Tan or gray stippling of foliage is a surefire marker of the two-spotted mite’s existence.
A fine webbing can once more be observed on the undersides of leaves as the infestation gets worse. The plant will perish if the infestation is bad. Mite population growth can be slowed down by using insecticidal soap and spraying the plant area to maintain a high humidity level. Also helpful will be chemical control using items referred to as acaricides.
Check the succulents periodically so you can take action before the infestation gets out of control if you want to really get a handle on the mites. Use the right amount of water, fertilizer, and sunshine to keep the plants healthy. Remove any succulent sections that are dead or dying, and discard of seriously ill plants right away.
Does insecticidal soap cause leaf burning?
To control insect and mite infestations on houseplants, vegetables, fruits, and ornamentals, insecticidal soaps can be a useful tool. When compared to more conventional pesticides, soaps have fewer potential side effects on the user, beneficial insects, and the environment. Knowing how insecticidal soaps “work,” their method of action, and their advantages and disadvantages are crucial for maximum effectiveness.
Insecticidal soaps are fatty acid potassium salts. When an alkali, such as potassium hydroxide, reacts with fat, soap is created. Fatty acids make up the majority of fats. A combination of chosen fatty acid chain lengths is present in commercial products.
Only until the insecticidal soap comes into contact with the pests themselves will it operate. The most popular types of soap are manufactured from fatty acid potassium salts. The fatty acids cause the insect cell membranes’ permeability and structural integrity to be compromised. The insect quickly perishes because the broken cells allow the contents of the cell to flow out. Once the spray treatment has dried, there is no longer any insecticidal activity left behind. On leaf surfaces, insecticidal soaps quickly break down and wash away.
The soft-bodied pests that include aphids, adelgids, lacebugs, leafhoppers, mealybugs, thrips, sawfly larvae (pear and rose slugs), scale insects (particularly scale crawlers), plant bugs, psyllids, spider mites, and whiteflies are the ones that insecticidal soaps work best on. Less effective against bug eggs is insecticidal soap. Additionally, insecticidal soap is less effective against pests with rigid bodies like beetles. Some soaps are advertised as being able to prevent powdery mildew on particular plants.
Soaps are not poisonous to mammals. They may, however, cause minor skin or eye irritation. Insecticidal soaps are non-permanent in the environment, biodegradable, and free of organic solvents. Up until the day of harvest, numerous food crops can be treated with a variety of insecticidal soap formulations.
Since insecticidal soaps only work on contact, as was already noted, there is no residual action after an insecticidal soap spray has dried. An insect won’t be harmed by stepping on or consuming soap-treated plant material if it hasn’t been coated with the spray.
Understanding the biology and life cycle of the targeted pest will help you control it more successfully, just like you would with any contact insecticide. For instance, insecticidal soaps can help suppress azalea lace bug nymphs but have little effect on the eggs of the lace bug. Additionally, the undersides of leaves are home to all stages of the lace bug. Spraying only the upper surfaces will have no impact because the targeted pest will not be exposed to the treatment. The ideal timing for treatment will be determined by routine scouting to identify when the lace bug nymphs hatch from the eggs.
- On some vulnerable plants, insecticidal soaps may result in phytotoxicity signs like yellow or brown spots on the leaves, burned tips, or scorched leaves.
- Pest pressure, cultivar, plant vigor, environmental factors, spray concentration, spray mixture pH, as well as time, number, and frequency of applications, can all affect how sensitive a plant is.
- New transplants, unrooted cuttings, and plants with fragile young growth are more likely to develop phytotoxic symptoms and should not be handled with soap. Stressed plants include those that are exposed to hot (more than 90 F), humid, or dry environments.
- Avoid applying to delicate plants like sweet peas, Japanese maple, mountain ash, or horse chestnut.
- Begonia, chrysanthemum, Crown of Thorns, cucumber, delicate ferns, thin leaf evergreens (particularly when stressed or when vulnerable new growth is present), ornamental ivy, palms, poinsettia, redbud, river birch, schefflera, Zebra plant, and some succulents may be sensitive. Numerous plants may also suffer damage to their open blossoms or flowers.
- Spruce glaucous bloom and grape waxy bloom could both change.
- When in doubt, only treat a small area of the cultivar; do not treat the full population of plants until at least 24 hours have passed and no phytotoxic (harmful to plants) signs have appeared.
- In addition to removing oil from dishes, dishwashing soaps and detergents have the potential to harm plants by dissolving the waxy cuticle on their leaf surfaces. When used as a spray, dishwashing soaps and detergents (which are not pesticides) increase the risk of plant damage.
To optimum effectiveness, insecticidal soaps should be used when the environment favors slow drying, such as in the early morning when there is dew present or in the early evening. Avoid using soaps during hot, bright days that encourage quick drying. In order for the soap to work, there must be complete coverage: Spray thoroughly, but don’t go past the runoff point. Follow-up scouting may reveal the necessity for more applications.
Hard water with a high mineral concentration may make insecticidal soap less effective and more hazardous to the treated plants. When the metal ions in hard water, such as calcium, iron, or magnesium, bond to the fatty acids in soap, a precipitate (soup scum) may develop. Avoid using insecticidal soaps near bodies of water since they are poisonous to fish and other aquatic life.
In conclusion, if used correctly and with an understanding of their advantages and disadvantages, soaps can be useful instruments in an integrated strategy to pest management. Be sure to adhere to all label directions.
Even with sound cultural measures, pests and illnesses occasionally do develop. Use of chemical control should only be considered as a last resort.
Department of Plant Science and Landscape Architecture Integrated Pest Management Program UConn Extension
by Leanne Pundt, a University of Connecticut Extension Educator. Updated in 2015.