How to Get Rid of Symphylans in Potted Plants

Symphylans, also known as garden centipedes or soil centipedes, are tiny arthropods that feed on the roots of plants. They are commonly found in potted plants and can cause significant damage if left unchecked. Here are some effective methods to get rid of symphylans in your potted plants:

Step 1: Identify the Problem

The first step to getting rid of symphylans is to identify if you have them in your potted plants. Signs of damage caused by symphylans include stunted growth, wilting, and yellowing of leaves. You may also notice holes in the soil, which are a result of symphylans burrowing into it.

Step 2: Remove Infested Soil

If you have identified the presence of symphylans in your potted plants, the next step is to remove the infested soil. Carefully remove the plant from the pot and gently shake off as much of the soil as possible. Place the plant in a separate pot with fresh soil and dispose of the old soil.

Step 3: Clean the Pot

After removing the soil and plant from the infested pot, take the time to clean the pot thoroughly. Wash it with hot, soapy water and rinse it well. Sterilizing the pot with a 10% bleach solution can also be effective in killing any remaining symphylans or their eggs.

Step 4: Use Beneficial Nematodes

Beneficial nematodes are microscopic worms that prey on symphylans and other soil-dwelling pests. You can purchase them from a garden supply store and apply them to the soil in your potted plants. Follow the instructions provided with the nematodes carefully for effective control.

Step 5: Apply Diatomaceous Earth

Diatomaceous earth is a natural, silica-based powder that can be sprinkled over the soil in your potted plants to control symphylans. The sharp edges of the diatoms cut through the symphylan's exoskeleton, causing them to dehydrate and die. Be sure to apply the diatomaceous earth evenly and follow the instructions on the packaging.

Step 6: Keep the Soil Moist

Symphylans prefer dry soil, so keeping the soil in your potted plants moist can help deter them. Water your plants regularly and consider using a water-retaining gel to help maintain moisture levels in the soil.

Step 7: Monitor for Re-infestation

Continue to monitor your potted plants for signs of symphylan re-infestation. If you notice any signs, repeat the steps above to get rid of them as soon as possible.

By following these steps, you can effectively get rid of symphylans in your potted plants and prevent further damage to your plants. Remember to stay vigilant and take action quickly if you notice any signs of infestation.