Canna lily Fine Webbing - Causes & Fixes

Jump to cause: Two-Spotted Spider Mite Infestation Tetranychus urticae (European Red Spider Mite) Outbreak Extreme Low Humidity/Desiccation

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Two-Spotted Spider Mite Infestation

Spider mites thrive in the warm, dry conditions often experienced by Canna lilies. They feed on the leaf parenchyma, leaving behind fine silk webbing as they create colonies across the foliage.

Very Common

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How to confirm: Hold a white piece of paper underneath a leaf and tap it to see if tiny crawling dots fall off.

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shopping_cart Recommended Products

1 Apply an organic miticide to eliminate the spider mite population and destroy eggs, larvae, and adults.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Increase humidity around the foliage and wipe leaves with a damp cloth to physically remove webbing and disrupt the mites' dry environment.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

3 Monitor soil moisture levels to ensure the plant is not under drought stress, which can exacerbate mite infestations.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

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Tetranychus urticae (European Red Spider Mite) Outbreak

In many regions, specific mite species target Canna lilies during periods of drought stress. The webbing is a defensive structure used to protect the mites from predators and dehydration.

Very Common

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How to confirm: Inspect the undersides of the leaves for tiny reddish or yellowish spots and silk clusters.

build How to fix it

shopping_cart Recommended Products

1 Apply an organic miticide or insecticide to the plant to eliminate the spider mite population and destroy their webbing.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Increase humidity around the Canna lily and ensure consistent watering to reduce the drought stress that triggers mite outbreaks.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

—

3 Gently wipe the leaves with a damp cloth to physically remove webbing and any remaining mites from the undersides of the foliage.

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Extreme Low Humidity/Desiccation

While not a direct cause of webbing, extreme dry air can cause plant tissues to degrade, making existing mite webs appear much more prominent and 'fine' across the large Canna leaves.

Common

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How to confirm: Check if the leaf edges are also turning crispy and brown alongside the presence of webbing.

build How to fix it

shopping_cart Recommended Products

1 Inspect the undersides of leaves for tiny moving dots or eggs to confirm if spider mites are present, as the dry air is likely exacerbating a mite infestation.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Increase ambient humidity around the Canna lily by using a pebble tray or a fine misting spray bottle to prevent further leaf desiccation.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

3 Monitor soil moisture levels closely to ensure the plant remains hydrated, as dry soil can further stress the plant and weaken its defenses.