Live to Plant

Most Common Prayer Plant Pests:
Identification and Treatment Guide

Updated: July 5, 2023

The prayer plant, also known as Maranta leuconeura, is a popular houseplant known for its beautiful foliage and ability to thrive in low-light conditions. However, like any other plant, the prayer plant is susceptible to pests that can hinder its growth and overall health. In this article, we will discuss the most common prayer plant pests, how to identify them, and the best treatment methods to keep your prayer plant thriving.

Spider Mites

Spider mites are tiny arachnids that can wreak havoc on your prayer plant. They are most active in warm and dry environments, making indoor plants an ideal breeding ground for them. Spider mites feed on the sap of the leaves, which can cause yellowing, stippling, and eventually leaf drop.

To identify spider mites, look for fine webbing on the undersides of the leaves. You may also notice small dots moving around on the leaves, which are the mites themselves. If you suspect spider mite infestation, you can confirm it by placing a white piece of paper under a leaf and gently tapping it. If you see tiny specks moving on the paper, they are likely spider mites.

To treat spider mites on your prayer plant, start by isolating the affected plant to prevent the infestation from spreading. Use a gentle stream of water or a damp cloth to wipe away any visible mites and their webbing. You can also use insecticidal soap or neem oil spray to eliminate them. Make sure to follow the instructions carefully when using these products, as they can be harmful to your plant if not used correctly.

Mealybugs

Mealybugs are another common pest that can attack your prayer plant. These soft-bodied insects often appear as white cottony masses on the stems and undersides of leaves. Mealybugs feed on plant sap, causing stunted growth, yellowing, and leaf drop.

To identify mealybugs, look for fluffy white masses on your plant. They may also leave behind a sticky residue called honeydew, which can attract ants or lead to the growth of black sooty mold. If you suspect a mealybug infestation, you can confirm it by gently rubbing the white masses with a cotton swab dipped in rubbing alcohol. If they smear and turn pinkish, they are indeed mealybugs.

To treat mealybugs on your prayer plant, start by isolating the affected plant to prevent the infestation from spreading. Use a cotton swab dipped in rubbing alcohol to remove the mealybugs from the plant. You can also use insecticidal soap or neem oil spray to eliminate them. Make sure to thoroughly cover all plant surfaces, as mealybugs can hide in crevices and leaf axils.

Scale Insects

Scale insects are small, oval-shaped pests that attach themselves to the stems and leaves of plants, including the prayer plant. They have a hard shell-like covering that protects them from predators and pesticide sprays. Scale insects feed on plant sap and can cause yellowing, leaf drop, and overall weakened growth.

To identify scale insects on your prayer plant, look for small bumps or shells on the stems and leaves. They can vary in color from brown to tan and may appear shiny or waxy. If you suspect a scale insect infestation, you can confirm it by gently scraping off one of the bumps with your fingernail. If it leaves behind a yellowish or orange residue, it is likely a scale insect.

To treat scale insects on your prayer plant, start by isolating the affected plant to prevent the infestation from spreading. Use a soft brush dipped in soapy water to scrub off the scale insects from the plant. You can also use horticultural oil or neem oil spray to suffocate and kill them. Make sure to thoroughly coat all plant surfaces, as scale insects can hide in crevices and leaf axils.

Fungus Gnats

Fungus gnats are tiny flies that resemble fruit flies. They are attracted to moist soil and decaying organic matter, making them a common nuisance for indoor plants, including the prayer plant. Fungus gnats lay their eggs in the soil, and the larvae feed on organic matter and plant roots, causing stunted growth and yellowing of leaves.

To identify fungus gnats, look for tiny black flies hovering around your plant or crawling on the soil surface. You may also notice small white larvae in the soil. If you suspect a fungus gnat infestation, you can confirm it by placing yellow sticky traps near your plant. The gnats will be attracted to the color and get stuck on the traps.

To treat fungus gnats on your prayer plant, start by allowing the top inch of soil to dry out between waterings. This will help eliminate their breeding ground. You can also use sticky traps to catch adult gnats and reduce their population. If the infestation persists, you can use beneficial nematodes or a biological insecticide containing Bacillus thuringiensis var. israelensis (BTI) to target the larvae in the soil.

Prevention is Key

While it’s essential to know how to identify and treat prayer plant pests, prevention is always the best approach. Here are some tips to prevent pest infestations on your prayer plant:

  • Regularly inspect your plants for signs of pests or damage.
  • Keep your prayer plant in a clean and well-ventilated area.
  • Avoid overwatering your plant, as excessive moisture can attract pests.
  • Quarantine new plants before introducing them to your collection.
  • Maintain good hygiene by regularly removing dead leaves and debris.

By following these preventive measures and promptly addressing any pest issues, you can ensure that your prayer plant remains healthy and pest-free. Remember to always read and follow the instructions on any pesticide or treatment product you use to avoid harming your plant or yourself. With proper care and attention, your prayer plant will continue to bring beauty and joy to your indoor space for years to come.