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Most Common Purple Kale Plant Pests:
Identification and Treatment Guide

Updated: July 3, 2023

Introduction

Purple kale, also known as Red Russian kale, is a popular and nutritious vegetable that is a great addition to any garden. However, like any other plant, it is susceptible to pests that can damage the leaves and hinder its growth. In this article, we will discuss the most common pests that affect purple kale plants, how to identify them, and the best treatment methods to keep your plants healthy and thriving.

Aphids

Identification: Aphids are small, soft-bodied insects that come in various colors, including green, black, and pink. They are usually found in clusters on the undersides of leaves and stems. Aphids suck sap from plants, causing leaves to curl and stunt growth.

Treatment: To control aphids on purple kale plants, you can start by spraying a strong stream of water on the infested parts of the plant to dislodge them. Additionally, introducing natural predators such as ladybugs or lacewings into your garden can help keep aphid populations in check. For severe infestations, insecticidal soaps or neem oil can be used as a last resort.

Cabbage Worms

Identification: Cabbage worms are the larvae of white butterflies or moths. They are light green in color with velvety bodies and can often be found feeding on the leaves of purple kale plants. Cabbage worms leave behind irregular holes in the leaves.

Treatment: The best way to control cabbage worms is through manual removal. Regularly inspect your purple kale plants for any signs of infestation and handpick the worms off the leaves. You can also use floating row covers to prevent adult butterflies from laying eggs on your plants.

Flea Beetles

Identification: Flea beetles are small, shiny insects that jump like fleas when disturbed. They are typically black or metallic in color and have enlarged hind legs. Flea beetles feed on the leaves of purple kale plants, creating small holes that give the leaves a shot-hole appearance.

Treatment: To control flea beetles, you can start by applying a layer of organic mulch around your purple kale plants. This will discourage the beetles from laying eggs in the soil. You can also use floating row covers to physically prevent the beetles from reaching your plants. In severe cases, insecticidal sprays containing pyrethrin or spinosad can be used.

Slugs and Snails

Identification: Slugs and snails are slimy mollusks that leave behind silvery slime trails on the leaves of purple kale plants. They are most active during damp and humid weather conditions and tend to feed at night. Slugs and snails chew irregular holes in the leaves.

Treatment: To control slugs and snails, you can start by removing any debris or hiding places near your purple kale plants that may attract them. Creating physical barriers such as copper tape or diatomaceous earth around your plants can also help deter them. Additionally, you can set up beer traps or handpick them off your plants after dark.

Cutworms

Identification: Cutworms are caterpillars that curl up into C-shaped positions when disturbed. They are usually gray or brown in color and can be found feeding on the stems of young purple kale plants. Cutworms often sever the stems at ground level, causing the plants to wilt and die.

Treatment: To protect your purple kale plants from cutworms, you can create physical barriers around each plant using cardboard collars or plastic rings pushed into the soil. These barriers should extend about an inch above and below the soil surface to prevent the cutworms from reaching the stems.

Conclusion

Keeping your purple kale plants healthy and pest-free requires regular monitoring and taking appropriate action when pests are detected. By learning to identify the most common pests that affect purple kale, you can implement effective treatment methods and enjoy a bountiful harvest of this nutritious vegetable. Remember to always opt for organic and environmentally-friendly pest control methods whenever possible, as they are safer for both your plants and the ecosystem as a whole.