Cucumis sativus Bon Odori F1 Fine Webbing - Causes & Fixes

search Possible Causes

error

Two-Spotted Spider Mite (Tetranychus urticae)

This is the most common cause of fine webbing on cucumber leaves, especially in hot, dry conditions. The mites pierce plant cells to feed, causing stippling and creating silk webs to protect their eggs.

Very Common

lightbulb

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

build How to fix it

shopping_cart Recommended Products

1 Immediately spray the plant with an organic insecticide to kill existing mites, eggs, 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 ensure the soil remains moist, as spider mites thrive in hot, dry environments.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

3 Prune and dispose of heavily infested leaves to prevent the mites from spreading to healthy parts of the cucumber plant.

error

Tetranychus cynarae (Cucumber Spider Mite)

A specialized mite species that targets Cucurbitaceae. It produces fine, silk-like webbing across the leaf surface and stems, leading to chlorosis and eventual leaf drop.

Very Common

lightbulb

How to confirm: Inspect the underside of the leaves for small, yellowish dots (stippling) near the webbing sites.

build How to fix it

shopping_cart Recommended Products

1 Apply an organic miticide or insecticide to eliminate the spider mite population and destroy eggs/larvae.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Prune and dispose of heavily infested or dead leaves to reduce the mite population and prevent further spread.

3 Increase humidity around the plant and ensure proper airflow, as spider mites thrive in hot, dry conditions.

Flora Premium Plant Mister

Spray Bottles

$12

In Stock

warning

High Humidity/Condensation Webbing

In very high humidity with poor airflow, microscopic fungal hyphae or moisture films can sometimes mimic a fine web-like appearance on cucumber foliage.

Common

lightbulb

How to confirm: Check if the 'webbing' disappears when the environment becomes drier or if there is visible condensation on the leaves.

build How to fix it

shopping_cart Recommended Products

1 Improve airflow around the cucumber foliage by pruning crowded leaves and ensuring adequate spacing between plants to reduce moisture buildup.

2 Monitor the humidity levels around your plants using a hygrometer to ensure the environment does not stay consistently too damp.