Cutworm (Agrotis sp.) Early instars are about 7-12 mm long. Fully grown caterpillars are 35-50 mm long. Ⓒ A.M. Varela, icipe
Black cutworm (Agrotis ipsilon). Pupae are brown to dark brown and approximately 1.7 to 2.5 cm in length and 5 mm in width. Ⓒ Courtesy EcoPort (http://www.ecoport.org): P. Ooi
Turnip moth (Agrotis segetum). The adult moth is about 2 cm long and has a wingspan of 4 to 4.5 cm. Ⓒ Courtesy EcoPort (http://www.ecoport.org): P. Ooi
Okra seedling damaged by cutworm caterpillar (right). Note healthy seedling on the left. Close-up of cutworm (inset) Ⓒ A.M. Varela, icipe Scientific Name Agrotis spp. (
African mallow shrub, with its vibrant foliage and unique appearance, can be susceptible to worms that damage its leaves and weaken its health As a gardening enthusiast, I often get questions from readers about the best ways to get rid of worms in African mallow shrubs In this comprehensive guide, I will share effective methods to identify and eradicate worms from your prized African mallow shrub.
Identifying Worms on African Mallow Shrubs
The first step is identifying the type of worms infesting your plant. Common worms on African mallow shrubs include:
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Caterpillars – Known for voracious eating habits, these worms can quickly defoliate plants. Look for green, brown or colorful caterpillars.
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Leaf miners – These create meandering tunnels between leaf surfaces. Look for white trails or blotches on leaves.
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Loopers – Inchworms that loop as they move They skeletonize leaves, leaving only veins behind
Carefully inspect leaves and stems for signs of worms, including holes, discoloration, droppings, and silk webs. Proper identification will help you choose the appropriate treatment method.
Natural Ways to Get Rid of Worms on African Mallow
For mild infestations. natural methods can effectively remove worms without harming your plant or the environment
Handpicking
Manually remove larger worms like caterpillars by hand. Wear gloves and regularly inspect plants to catch infestations early. Drop worms in soapy water to kill.
Neem Oil
This natural pesticide disrupts the worm life cycle. Mix with water per instructions and spray on affected areas. It is safe for plants when used properly.
Beneficial Insects
Release ladybugs, lacewings, praying mantis or other predator insects that feast on worms. They provide natural pest control.
Chemical Treatments for Severe Worm Infestations
For heavy infestations, you may need chemical treatments. Use safely as these can harm the plant and environment if misused:
Insecticidal Soap
Insecticidal soaps smother and kill soft-bodied insects like worms. Dilute and spray directly on affected zones. Avoid harming pollinators.
Bacillus Thuringiensis (Bt)
This bacterial insecticide targets worm pests but spares other insects. Apply evenly on leaves when worms are feeding. Reapply weekly.
Synthetic Insecticides
These should be a last resort if all else fails. Carefully choose a product labeled for ornamentals and follow instructions to minimize risks.
No matter which treatment you select, always monitor your plant closely afterwards and reapply as needed. Isolate treated plants away from pollinators until any residues have dried.
6 Tips to Prevent Worm Infestations
Prevention is key to avoid recurring issues with worms on your African mallow shrub:
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Inspect plants weekly for early signs of pests
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Remove and destroy any infested parts immediately
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Keep garden free of debris that can harbor worms
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Avoid overfeeding plants, as excess nitrogen can attract pests
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Promote airflow and sunlight penetration with proper spacing and pruning
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Strengthen plants with good care practices to withstand attacks
Vigilance and integrated pest management combining multiple tactics are essential for deterring worms. At the first sign of infestation, take prompt action to nip the problem in the bud.
When to Seek Professional Help
In some cases, worm infestations can get severely out of hand:
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Worms rapidly defoliate the plant
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Multiple treatments provide no control
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You are unsure how to identify the worm species
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The infestation spreads to other plants in your garden
For such difficult cases, enlist the help of a professional pest control expert or horticulturist. They can accurately diagnose the issue and prescribe the most effective treatment solutions. Though it may require a monetary investment, professional help can save your struggling African mallow shrub.
Natural enemiesCutworms are attacked by a large range of
1. Braconid: Snellenius manilae is a small Braconid wasp species. It looks like Cotesia except that it has a triangular closed cell on its front wing and has hairy eyes. This parasitoid wasp is host specific. It only parasitises cutworm larvae. A female wasp lays 3-5 eggs in a cutworm larva. The parasite eats the body fluids and the larva for its development. Cocoons are formed next to the hosts body. Lifecycle takes about 4-8 days. A wasp lives for about 1 week. 2. Cotesiaspp 3. Tachinid fly
For more information on natural enemies click here.
Symptoms by affected plant part:
Leaves: “windowpane” holes on leaves; abnormal leaf fall. Roots: Holes ranging from small and superficial to very large deep ones.
Bagworms| What are bagworms and how to get rid of them. Tree and shrub services in Chester nj.
FAQ
How do you get rid of worms in shrubs?
How to get rid of worms in squash plants?
How do you get rid of leaf-eating worms?
How do you control a mallow plant?
Controlling mallow can definitely be a frustrating task at best. Pulling, hoeing, or weeding works well when plants are very young and you must keep a constant eye to keep up on them.
How much water does African Mallow need?
African mallow needs 0.8 cups of water every 9 days when it doesn’t get direct sunlight and is potted in a 5.0″ pot. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants. Does your plant get direct sunlight?
How do you care for African Mallow?
Adding a handful of perlite to regular store-bought potting soil should do the trick! African mallow is a fast growing plant and may deplete the nutrients in its soil over time. Replenish them with a gentle organic fertilizer or compost every 1-2 months depending on your location and season.
Is African Mallow easy to care for?
African mallow is generally considered an easy-to-care-for plant and makes a great choice for beginners! African mallow prefers for the soil to dry out between waterings and should be watered regularly.