Updated: July 8, 2023

Crusader bug on Muscari plant

Muscari plants, also known as grape hyacinths, are beloved for their vibrant blue or purple flowers that resemble clusters of grapes. These spring-blooming perennials are generally low-maintenance and easy to grow, but they can sometimes fall victim to pesky crusader bugs. These small insects can wreak havoc on your muscari plants if left untreated. In this article, we will explore effective methods to get rid of crusader bugs and protect your beloved muscari plants.

Identifying Crusader Bugs

Before we delve into the methods to control crusader bugs, it is crucial to be able to identify them correctly. Crusader bugs (Miris striatus) are small insects that belong to the family Miridae. They are commonly found feeding on a variety of plants, including muscari.

Crusader bugs are approximately 1 cm long and have a distinctive shield-shaped body. They are usually brown or green in color, with black markings on their wings. These bugs have piercing-sucking mouthparts that they use to pierce the plant’s tissues and suck out sap.

Signs of Crusader Bug Infestation

The presence of crusader bugs on your muscari plants can be identified through various signs. Here are some indicators that your plants may be infested:

  1. Distorted Growth: If you notice twisted or deformed leaves or stems on your muscari plants, it could be a sign of crusader bug feeding.

  2. Leaf Discoloration: Crusader bugs extract sap from the leaves, which can cause yellowing or browning of the affected foliage.

  3. Wilting or Stunted Growth: Infested muscari plants may exhibit wilting or stunted growth due to the damage caused by crusader bug feeding.

  4. Presence of Bugs: Look for the bugs themselves. They are usually found on the undersides of leaves or near the flower buds.

Natural Methods to Get Rid of Crusader Bugs

When dealing with crusader bugs on your muscari plants, it is always best to start with natural and eco-friendly methods before considering chemical interventions. Here are some effective ways to control crusader bugs naturally:

1. Handpicking

If you only have a few crusader bugs on your muscari plants, you can manually remove them by handpicking. Wear a pair of gloves and carefully inspect the plant, focusing on the undersides of leaves and flower buds. Gently squish the bugs between your fingers or drop them into a container filled with soapy water to kill them.

2. Blast Them Off

Another simple method to get rid of crusader bugs is by using a strong stream of water to dislodge them from your muscari plants. Use a garden hose or a pressure washer on a low setting and direct the water towards the infested areas. This method will effectively knock off the bugs without harming your plants.

3. Neem Oil Spray

Neem oil is a natural insecticide derived from the seeds of the neem tree (Azadirachta indica). It has insecticidal properties that can help control crusader bugs and other garden pests. Mix neem oil with water according to the instructions on the product label and spray it directly onto the affected parts of your muscari plants. Repeat this process every few days until the infestation is under control.

4. Companion Planting

Companion planting involves strategically planting certain species near each other to benefit both plants. In the case of muscari plants, interplanting them with insect-repellent herbs such as basil, mint, or lavender can help deter crusader bugs. These herbs emit strong scents that repel bugs and can reduce the likelihood of an infestation.

5. Beneficial Insects

Introducing beneficial insects into your garden can be an effective long-term solution for controlling crusader bugs and other pests. Ladybugs, lacewings, and parasitic wasps are natural predators of crusader bugs and can help keep their population in check. You can purchase these beneficial insects from garden supply stores and release them near your muscari plants.

Chemical Control Options

If natural methods fail to control the crusader bug infestation on your muscari plants, you may need to resort to chemical interventions. However, it is important to note that chemical insecticides should be used as a last resort and with caution to avoid harming beneficial insects and pollinators. When using chemical control options:

  • Choose insecticides labeled for use on muscari plants.
  • Follow the instructions on the product label carefully.
  • Apply insecticides during calm weather conditions to prevent drift.
  • Avoid spraying when the plants are in bloom to protect pollinators.

Conclusion

Crusader bug infestations can be frustrating for any gardener, but with proper identification and timely action, you can successfully eliminate these pests from your muscari plants. Remember to start with natural methods first and only turn to chemical interventions if necessary. By taking proactive measures to control crusader bugs, you can ensure the health and beauty of your muscari plants throughout the blooming season.