Phalaenopsis Bellinzona Fine Webbing - Causes & Fixes

Jump to cause: Spider Mites (Tetranychidae) Low Humidity/Dry Environment Cheesman's Mites or Other Micro-Arachnids

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Spider Mites (Tetranychidae)

The presence of fine, silk-like webbing is the hallmark sign of a spider mite infestation. These microscopic pests pierce the Phalaenopsis leaf cells to suck out nutrients, causing stippling and eventual chlorosis.

Very Common

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

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1 Immediately spray the orchid leaves, including the undersides, with an organic insecticide to eliminate existing mites and eggs.

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

3 Isolate the infested orchid from other plants to prevent the mites from spreading via the fine silk webbing.

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Low Humidity/Dry Environment

While webbing is usually biological, extremely low humidity can cause the silk produced by existing mite populations to become more visible and 'stiff'. Phalaenopsis orchids require much higher ambient moisture than most indoor houseplants.

Common

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How to confirm: Check your hygrometer; levels should ideally be consistently between 50% and 70% for this cultivar.

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1 Inspect the undersides of leaves for tiny moving dots or webs to confirm if spider mites are present; if found, treat the plant with an organic miticide.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Increase ambient humidity around the orchid by using a pebble tray or a humidifier to prevent the silk from becoming brittle and visible.

3 Mist the orchid leaves regularly with a fine spray to maintain moisture levels, but ensure the crown remains dry to prevent rot.

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Cheesman's Mites or Other Micro-Arachnids

Other species of small mites can inhabit the crevices of orchid leaves and flower spikes, producing fine webbing as they migrate through the plant tissue.

Common

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How to confirm: Use a magnifying glass to inspect the underside of the leaves and the base of the orchid spikes for moving organisms.

build How to fix it

shopping_cart Recommended Products

1 Isolate the orchid immediately to prevent the mites from spreading to other plants in your collection.

2 Treat the plant with an organic miticide or neem oil 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

3 Gently wipe the leaves and crevices with a damp cloth to physically remove webbing and remaining pests.