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How to Get Rid of Crusader Bugs on Purple Kale Plant

Updated: July 3, 2023

Purple kale, known for its vibrant color and nutritious properties, is a popular addition to many home gardens and vegetable patches. However, like any other plant, purple kale is susceptible to pests and diseases that can hinder its growth and overall health. One such pest is the crusader bug, also known as the marmorated stink bug. In this article, we will discuss the characteristics of crusader bugs, the damage they can cause to purple kale plants, and effective methods to get rid of them.

Understanding Crusader Bugs

Crusader bugs belong to the family Pentatomidae and are native to Asia. They have a distinct shield-shaped body that varies in color from brownish-gray to mottled shades of brown. Adult crusader bugs can grow up to 1.7 cm in length and are easily identified by their characteristic scent glands which emit a pungent odor when they feel threatened or crushed.

These bugs are notorious for their feeding habits, as they pierce the surface of plants with their proboscis to suck out the sap and juices. The damage caused by their feeding can result in stunted growth, wilting, and yellowing of leaves. Additionally, crusader bugs can transmit diseases to plants, further compromising their health.

Identifying Crusader Bug Damage on Purple Kale Plants

When it comes to purple kale plants, crusader bugs can cause significant damage if left untreated. Some signs of crusader bug infestation on purple kale include:

  1. Yellowing leaves: Crusader bugs feed on the plant’s chlorophyll, resulting in yellowing leaves that may eventually wilt and die.
  2. Stunted growth: Infested plants often exhibit stunted growth due to the lack of nutrients caused by the bugs’ feeding.
  3. Misshapen or deformed leaves: As crusader bugs pierce the leaves, they can cause deformities and abnormalities in their growth.
  4. White specks: Look for white specks or spots on the leaves, which are a result of the bugs’ feeding activities.

Effective Methods to Get Rid of Crusader Bugs

To protect your purple kale plants from crusader bugs, it is important to implement effective pest control strategies. Here are some methods you can use to get rid of these pesky insects:

1. Manual Removal

The easiest way to control a small infestation of crusader bugs is by manually removing them from your purple kale plants. Wear gloves and carefully pick off the bugs, placing them in a bucket of soapy water to prevent them from returning to the plants. This method is time-consuming but can be effective if done regularly.

2. Neem Oil Spray

Neem oil, derived from the seeds of the neem tree, is a natural insecticide that disrupts the feeding and reproductive processes of pests like crusader bugs. Dilute neem oil according to the instructions on the packaging and spray it onto the leaves of your purple kale plants. Be sure to cover all surfaces, including the undersides of the leaves.

3. Insecticidal Soap

Insecticidal soap is another effective option for controlling crusader bugs. This soap works by suffocating the insects upon contact, ultimately killing them. Dilute insecticidal soap according to the instructions and spray it directly onto the bugs and affected areas of your purple kale plants. Repeat the application every few days until the infestation is under control.

4. Floating Row Covers

Floating row covers act as physical barriers, preventing crusader bugs from reaching your purple kale plants. These covers are made from lightweight fabric and allow sunlight, air, and water to reach the plants while keeping pests at bay. Secure the covers over your purple kale plants, making sure they are tightly sealed at the edges to prevent any gaps.

5. Crop Rotation

Crop rotation is an effective long-term strategy for preventing pest infestations, including crusader bugs. By rotating your crops each year, you disrupt the bugs’ life cycle and reduce their populations. Avoid planting purple kale or any other cruciferous vegetables in the same location for consecutive seasons.

6. Attract Beneficial Insects

Encouraging beneficial insects, such as ladybugs and lacewings, to your garden can help control crusader bug populations naturally. These insects feed on the bugs and their eggs, keeping their numbers in check. Planting flowers like marigolds and alyssums can attract these beneficial insects to your garden.

Conclusion

Crusader bugs can wreak havoc on your purple kale plants if not dealt with promptly and effectively. By understanding their characteristics, identifying the damage they cause, and implementing the methods mentioned above, you can successfully get rid of these pests and protect your purple kale plants. Remember to regularly inspect your plants and take action at the first sign of infestation to prevent further damage and promote a healthy garden.