Philodendron bipinnatifidum Fine Webbing - Causes & Fixes

Jump to cause: Spider Mites (Tetranychidae) Low Humidity/Environmental Stress

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Spider Mites (Tetranychidae)

The presence of fine webbing is a classic indicator of a spider mite infestation, where tiny arachnids spin webs to protect themselves and their eggs. In Philodendron bipinnatifidum, these pests thrive in dry, warm conditions and feed on the underside of the large, split leaves.

Very Common

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

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

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2 Physically remove visible webbing and pests by wiping the leaves with a damp cloth or rinsing the plant with a strong stream of water.

3 Increase local humidity and avoid dry, warm air to make the environment less hospitable for future spider mite outbreaks.

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Low Humidity/Environmental Stress

While webbing is primarily biological, extremely low humidity can stress the plant and make it more susceptible to mite outbreaks. The large surface area of Philodendron bipinnatifidum leaves leads to rapid transpiration, which can trigger a defensive response or weaken the plant's cuticle.

Common

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How to confirm: Check if the leaf edges are also turning brown or crispy in addition to the webbing.

build How to fix it

shopping_cart Recommended Products

1 Inspect the undersides of leaves for spider mites and treat the infestation 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 to prevent further environmental stress and protect the leaf cuticle.

Flora Premium Plant Mister