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How to Get Rid of Crusader Bugs on Rhubarb Plant

Updated: July 12, 2023

Rhubarb plants are a popular addition to many home gardens, known for their tart and tangy stalks that are commonly used in pies, jams, and other culinary delights. However, like any other plant, rhubarb can fall victim to various pests and diseases. One such pest is the Crusader bug (Mictis profana), also known as the Rhubarb Bug or the Red-banded Leafhopper. These small insects can cause significant damage to rhubarb plants if left untreated. In this article, we will explore effective ways to get rid of Crusader bugs and protect your rhubarb plant.

Identifying Crusader Bugs

Before we delve into the methods of control, it is essential to accurately identify Crusader bugs to ensure effective treatment. Crusader bugs are small insects, typically measuring around 3-4 mm in length. They have a distinctive red or orange coloration with black markings on their wings. These bugs can be found on the undersides of rhubarb leaves, where they feed on plant sap.

Natural Methods of Control

When it comes to dealing with pests like Crusader bugs, it is always best to start with natural methods of control before resorting to chemical solutions. Here are some effective natural ways to get rid of Crusader bugs on your rhubarb plant:

1. Manual Removal

One of the simplest ways to control Crusader bugs is by manually removing them from your rhubarb plant. Inspect the undersides of leaves regularly and pick off any bugs you find. You can use a pair of tweezers or wear gloves to protect your hands while removing the insects. Remember to dispose of them away from your garden to prevent re-infestation.

2. Beneficial Insects

Introducing beneficial insects into your garden can help naturally control Crusader bug populations. Ladybugs, lacewings, and parasitic wasps are known to feed on these pests. Consider planting flowers such as marigolds and daisies near your rhubarb plants to attract these beneficial insects.

3. Neem Oil Spray

Neem oil is a natural insecticide derived from the seeds of the neem tree. It is known for its effectiveness against a wide range of pests, including Crusader bugs. Mix 2-3 tablespoons of neem oil with a gallon of water and spray the solution on the affected leaves, focusing on the undersides. Repeat this process every 7-14 days until the infestation is under control.

Chemical Control Options

If natural methods fail to provide adequate control, you may need to resort to chemical solutions. However, it is important to use pesticides responsibly and follow all safety guidelines. Here are some chemical control options for dealing with Crusader bugs:

1. Insecticidal Soap

Insecticidal soaps are effective against soft-bodied insects like Crusader bugs. They work by suffocating the pests upon contact. Dilute the insecticidal soap according to the manufacturer’s instructions and spray it on both sides of the leaves where the bugs are present. Be sure to cover all affected areas thoroughly, as these bugs tend to hide in leaf crevices.

2. Pyrethrin-Based Insecticides

Pyrethrin-based insecticides are derived from chrysanthemum flowers and are effective against various pests, including Crusader bugs. These insecticides paralyze and kill insects upon contact. Follow the instructions on the product label for proper dilution and application. Take care not to exceed the recommended dosage, as excessive use can harm beneficial insects and pollinators.

3. Systemic Insecticides

Systemic insecticides are absorbed by the plant and provide long-lasting control against pests. They work by being taken up through the plant’s roots and transported to the leaves, where Crusader bugs ingest the toxic substance while feeding. It is essential to choose a systemic insecticide labeled for use on rhubarb plants and follow the instructions carefully.

Preventing Future Infestations

Once you have successfully controlled Crusader bugs on your rhubarb plant, it is crucial to take preventive measures to avoid future infestations. Here are some tips to help you prevent Crusader bugs from returning:

  • Regularly inspect your rhubarb plants for signs of pests and diseases.
  • Remove weeds and debris from around your plants, as they can harbor pests.
  • Avoid over-fertilizing your rhubarb plants, as excessive nitrogen can attract pests.
  • Maintain proper spacing between plants to promote airflow and discourage pest infestations.

By implementing these preventive measures, you can keep Crusader bugs at bay and enjoy a healthy rhubarb harvest year after year.

In conclusion, Crusader bugs can pose a threat to your rhubarb plants if not dealt with promptly and effectively. By identifying the pests accurately and using natural methods of control as the first line of defense, you can minimize the need for chemical solutions. However, if natural methods fail, chemical control options are available. Remember to always follow safety guidelines and use pesticides responsibly. With proper care and vigilance, you can protect your rhubarb plants from Crusader bugs and enjoy a bountiful harvest of this delicious crop.