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How to Get Rid of Crusader Bugs on Lavender Plant Pruning

Updated: July 12, 2023

Lavender plants are not only beautiful and fragrant, but they also have a wide range of uses, from culinary to medicinal. However, like any other plant, lavender can be susceptible to pest infestations. One such pest that can wreak havoc on lavender plants is the crusader bug. These small insects feed on the sap of the plant, causing wilting and stunted growth. If you’ve noticed crusader bugs on your lavender plant during pruning, don’t panic. There are several methods you can use to get rid of them and protect your lavender plant.

Identifying Crusader Bugs

Before we delve into the methods of getting rid of crusader bugs, it’s important to be able to identify them. Crusader bugs, also known as mottled shield bugs, are small insects that measure around 12-15 mm in length. They have a distinct shield-shaped body with a mottled brown and green coloration. The nymphs are usually bright green and lack wings.

Prevention is Key

The best way to deal with any pest infestation is to prevent it from happening in the first place. Here are some preventive measures you can take to keep crusader bugs away from your lavender plants:

  1. Plant selection: Choose lavender varieties that are resistant to pests and diseases. Some cultivars have natural defenses against crusader bugs.

  2. Companion planting: Intercropping lavender with other plants that repel crusader bugs can help deter them. Good companion plants include marigold, catnip, and chrysanthemums.

  3. Proper spacing: Make sure to give your lavender plants enough space between each other. Overcrowding can create ideal conditions for pests to thrive.

  4. Regular pruning: Prune your lavender plants regularly to remove any dead or damaged parts. This not only promotes plant health but also removes potential hiding places for pests.

  5. Cleanliness: Keep your garden clean and free from debris. Fallen leaves and other organic matter can provide shelter for pests.

Natural Remedies

If you’ve already spotted crusader bugs on your lavender plants, there are several natural remedies you can try to get rid of them:

  1. Handpicking: If the infestation is small, you can manually remove crusader bugs from your plants by handpicking them. Drop them into a bucket of soapy water to ensure they won’t return.

  2. Neem oil: Neem oil is a natural insecticide that can be effective against crusader bugs. Mix neem oil with water according to the instructions on the product label and spray it directly on the affected parts of the plant.

  3. Garlic spray: Crusader bugs dislike the strong smell of garlic. To make a garlic spray, crush a few cloves of garlic and steep them in water overnight. Strain the liquid and spray it onto your lavender plants.

  4. Insecticidal soap: Insecticidal soaps are another effective natural remedy for crusader bugs. These soaps work by suffocating the insects. Dilute the soap according to the instructions and spray it onto the affected parts of the plant.

  5. Beneficial insects: Introducing beneficial insects, such as ladybugs or lacewings, into your garden can help control crusader bugs naturally. These insects prey on pests and can significantly reduce their population.

Chemical Control

If natural remedies fail to eliminate the crusader bug infestation or if the infestation is severe, you may need to resort to chemical control methods. However, it’s important to use chemical insecticides as a last resort, as they can harm beneficial insects and have negative effects on the environment. If you do decide to use chemical control, follow these guidelines:

  1. Choose the right insecticide: Look for insecticides specifically formulated to control shield bugs or aphids, as these pests have similar feeding habits. Read the label carefully and follow the instructions.

  2. Apply at the right time: Timing is crucial when using chemical insecticides. Apply them during the early stages of infestation for better results.

  3. Protect yourself: Always wear protective clothing, gloves, and goggles when applying chemical insecticides. Follow the safety precautions mentioned on the product label.

  4. Minimize environmental impact: Use insecticides sparingly and only apply them to the affected parts of the plant. Avoid spraying near water sources or in windy conditions to prevent contamination.

Conclusion

Dealing with crusader bugs on your lavender plants can be frustrating, but with the right approach, you can effectively get rid of them and protect your plants. Remember to start with preventive measures and natural remedies before resorting to chemical control. By maintaining a healthy garden environment and promptly addressing pest infestations, you can enjoy beautiful and thriving lavender plants year-round.

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