Updated: August 18, 2022

If you have noticed small, brown or gray bumps on the leaves or stems of your chia plant, you may be dealing with an infestation of scales. Scales are small insects that attach themselves to the plant’s tissue and feed on its sap, causing damage to the plant’s overall health and appearance. Fortunately, there are several ways to get rid of scales on chia plants.

Identify the Type of Scale

Before deciding on a treatment plan, it is important to identify the type of scale that has infested your chia plant. There are two main types of scales: armored scales and soft scales. Armored scales have a hard, protective covering that makes them difficult to kill with insecticides. Soft scales, on the other hand, have a softer, waxy coating and are easier to control with insecticides.

To determine which type of scale you have on your chia plant, gently scrape off one of the bumps with a fingernail or knife. If there is a hard shell underneath, it is an armored scale. If the shell is soft and pliable, it is a soft scale.

Non-Chemical Methods

If you prefer not to use chemicals to control scales on your chia plant, there are several non-chemical methods you can try:

  • Pruning: If the infestation is localized, you can prune off the affected leaves or stems and dispose of them in a sealed plastic bag. This will help prevent the scales from spreading to other parts of the plant.
  • Manual Removal: You can also manually remove the scales by gently scraping them off with a soft-bristled brush or cotton swab dipped in rubbing alcohol.
  • Neem Oil: Neem oil is an organic pesticide that can be effective against soft scales. Mix 1-2 tablespoons of neem oil with a gallon of water and spray the solution onto the plant, making sure to cover both the tops and undersides of the leaves. Repeat every 7-10 days until the infestation is under control.

Chemical Methods

If non-chemical methods do not provide sufficient control, you may need to use insecticides. Be sure to read and follow the label instructions carefully, as some insecticides can be harmful to beneficial insects and pollinators. Here are two insecticides that can be effective against scales:

  • Horticultural Oil: Horticultural oil is a petroleum-based oil that suffocates scales by clogging their breathing pores. Mix 2-5 tablespoons of horticultural oil with a gallon of water and spray the solution onto the plant, making sure to cover both the tops and undersides of the leaves. Repeat every 7-10 days until the infestation is under control.
  • Insecticidal Soap: Insecticidal soap is made from natural plant oils and fatty acids that dissolve the scales’ protective coating, causing them to dehydrate and die. Mix 2-5 tablespoons of insecticidal soap with a gallon of water and spray the solution onto the plant, making sure to cover both the tops and undersides of the leaves. Repeat every 7-10 days until the infestation is under control.

Preventing Future Infestations

To prevent future infestations of scales on your chia plant, it is important to practice good plant hygiene. Here are some tips:

  • Inspect New Plants: Before bringing any new plants into your home or garden, inspect them thoroughly for signs of pests or disease.
  • Remove Debris: Remove any fallen leaves or other debris from around your chia plant, as these can harbor pests and diseases.
  • Water Properly: Scales are attracted to plants that are stressed or weakened, so make sure your chia plant is getting the right amount of water and nutrients.
  • Monitor Regularly: Regularly inspect your chia plant for signs of pests or disease, and take action immediately if you notice any problems.

FAQ

Can I use household vinegar to control scales on my chia plant?

Although vinegar can be effective against some pests, it is not recommended for controlling scales on chia plants. Vinegar can damage the plant’s tissue and may not be effective against armored scales.

Can I use dish soap to control scales on my chia plant?

While dish soap can be effective against soft-bodied insects like aphids, it is not recommended for controlling scales. Scales have a hard, protective coating that makes them resistant to soap.

How long does it take to get rid of scales on a chia plant?

The length of time it takes to get rid of scales on a chia plant depends on the severity of the infestation and the treatment method used. It may take several weeks or even months to completely eliminate the scales.