Begonia Monza Pink 138 Fine Webbing - Causes & Fixes

Jump to cause: Two-Spotted Spider Mite Infestation Broad Mites Extreme Low Humidity (Desiccation)

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Two-Spotted Spider Mite Infestation

The fine webbing is a classic sign of spider mites, which thrive in the low humidity environments often found with Rex Begonias. These arachnids pierce the cell walls of the pink leaf patterns to suck out nutrients, causing stippling and eventual leaf drop.

Very Common

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

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1 Immediately spray the plant with an organic miticide to kill existing spider mites and their eggs.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

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2 Increase local humidity around the Begonia to make the environment less hospitable for mites, using a pebble tray or mister.

Flora Premium Plant Mister

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3 Gently wipe the leaves with a damp cloth to physically remove webbing and any remaining pests from the leaf surfaces.

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Broad Mites

While broad mites are too small to see, they can cause leaf distortion and subtle silk-like textures on the undersides of Rex Begonia foliage. They often accompany spider mite outbreaks in indoor tropical settings.

Common

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How to confirm: Inspect the new growth for puckering, curling, or stunted development of the pink patterned leaves.

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shopping_cart Recommended Products

1 Treat the plant with an organic insecticide/miticide spray to eliminate the mites and their eggs.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Isolate the affected Begonia from other houseplants to prevent the mites from spreading via the fine webbing.

3 Gently wipe the undersides of the leaves with a damp cloth to physically remove webbing and mite clusters.

warning

Extreme Low Humidity (Desiccation)

In very dry conditions, the delicate edges of Begonia Monza Pink can become brittle and fray; if fungal pathogens are present on the decaying edges, they may create a fine, dusty appearance that mimics webbing.

Common

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How to confirm: Use a hygrometer to check if your ambient humidity is consistently below 50% for this tropical species.

build How to fix it

shopping_cart Recommended Products

1 Increase local humidity around the plant to prevent leaf edges from becoming brittle and fraying.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

2 Monitor soil moisture levels closely to ensure the plant is not experiencing drought stress alongside low humidity.