Zantedeschia Captain Morelli Fine Webbing - Causes & Fixes

search Possible Causes

error

Two-Spotted Spider Mite Infestation

These microscopic arachnids thrive in the warm, dry conditions often experienced by Calla Lilies. They pierce the plant cells to feed on sap, leaving behind fine silk webbing as they create colonies on the undersides of leaves.

Very Common

lightbulb

How to confirm: Hold a white piece of paper under a leaf and tap it sharply to see if tiny moving specks fall onto the paper.

build How to fix it

shopping_cart Recommended Products

1 Immediately spray the plant, especially the undersides of leaves, with an organic miticide to kill existing mites and larvae.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Increase humidity around the plant and avoid dry, warm air, as spider mites thrive in arid environments.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

3 Check the soil moisture levels regularly to ensure the plant is not under drought stress, which can weaken its defenses.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

—

error

Tetranychus urticae (European Red Spider Mite)

A specific subspecies that is highly aggressive on Zantedeschia species. In addition to webbing, you may notice stippling (tiny yellow dots) on the dark foliage caused by localized cell death.

Very Common

lightbulb

How to confirm: Inspect the leaf undersides for tiny reddish or orange dots among the webbing.

build How to fix it

shopping_cart Recommended Products

1 Isolate the plant immediately to prevent the mites from spreading to other greenery and spray the foliage thoroughly with an organic miticide to kill existing mites and eggs.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Wipe down the leaves with a damp cloth to physically remove webbing and stippling debris, then monitor the plant closely for new infestations.

3 Ensure the plant is kept in a humid environment, as spider mites thrive in dry conditions; consider using a fine mist spray to maintain moisture.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

warning

Low Humidity/Desiccation Stress

Extreme lack of humidity can cause the plant's cellular structure to weaken, making it more susceptible to mite colonization. While not a direct cause of webbing, it creates the microclimate necessary for spider mites to flourish.

Common

lightbulb

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

build How to fix it

shopping_cart Recommended Products

1 Inspect the undersides of leaves for spider mites and treat any visible pests with an organic insecticide spray.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

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

Flora Premium Plant Mister