Verbena hastata Fine Webbing - Causes & Fixes

Jump to cause: Two-Spotted Spider Mite (Tetranychus urticae) Tetranychid Mite Infestation (General) Leaf Miner Larvae (Agromyzidae)

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Two-Spotted Spider Mite (Tetranychus urticae)

Spider mites thrive in warm, dry conditions and feed on the underside of Verbena hastata leaves, extracting cell contents and leaving behind fine silk webs. This often results in stippling (tiny yellow dots) on the foliage before progressing to larger patches of chlorosis.

Very Common

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

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shopping_cart Recommended Products

1 Apply an organic insecticide 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 plant and ensure the soil remains consistently moist, as spider mites thrive in dry environments.

Flora Premium Plant Mister

Spray Bottles

$12

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3 Check the soil moisture levels regularly to prevent the dry conditions that trigger mite outbreaks.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

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Tetranychid Mite Infestation (General)

Other species within the Tetranychidae family create similar silk structures across terminal buds and leaf junctions in Verbena to protect themselves from predators and desiccation. The webbing acts as a micro-environment for the mite colonies.

Common

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How to confirm: Inspect the newer, tender growth at the top of the stems for concentrated clusters of webs and pale, desiccated leaf edges.

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shopping_cart Recommended Products

1 Apply an organic miticide or insecticide spray to the plant, ensuring you coat the undersides of leaves and all webbing to eliminate the mite colonies.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Physically remove the webbing and mite colonies by wiping the leaves with a damp cloth or using a strong stream of water to disrupt their micro-environment.

3 Monitor the plant closely using yellow sticky traps to capture any remaining adult mites or flying stages of the infestation.

Super Ninja Fungus Gnat Traps - 30 Pack

30 pcs

$7

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Leaf Miner Larvae (Agromyzidae)

While primarily known for creating 'serpentine' tracks, some stages of certain insect larvae can cause secondary silk production or structural damage that resembles fine webbing as the plant tissue collapses. This is less common than spider mites but presents alongside visible tunnels in the leaf blade.

Common

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How to confirm: Look for winding, translucent white lines or 'tunnels' inside the leaf tissue in addition to the webbing.

build How to fix it

shopping_cart Recommended Products

1 Inspect the undersides of leaves for serpentine tunnels and remove any heavily damaged foliage to prevent further larvae spread.

2 Apply an organic insecticide spray to eliminate larvae and protect healthy plant tissue from further infestation.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

3 Monitor soil moisture levels to ensure the plant remains healthy and resilient against environmental stress during recovery.