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Related Experiment Video

Updated: Jan 25, 2026

Application of Two-spotted Spider Mite Tetranychus urticae for Plant-pest Interaction Studies

Application of Two-spotted Spider Mite Tetranychus urticae for Plant-pest Interaction Studies

Published on: July 4, 2014

Vines avoid coiling around neighbouring plants infested by polyphagous mites.

Tomoya Nakai¹, Shuichi Yano²

¹Laboratory of Ecological Information, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan.

Scientific Reports

|May 1, 2019

Summary

Certain climbing plants, like bush killer (Cayratia japonica), avoid coiling around spider mite-infested plants. This avoidance behavior, linked to mite webs, helps prevent plant damage from these pests.

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Area of Science:

Plant biology
Ecology
Entomology

Background:

Vines are susceptible to damage from mites when twining around infested plants.
Understanding plant-pest interactions is crucial for ecological balance and agricultural strategies.

Purpose of the Study:

To investigate if climbing plants exhibit avoidance behavior towards plants infested with spider mites.
To identify the specific cues triggering this avoidance in different vine species.

Main Methods:

Observing coiling responses of morning glory (Ipomoea nil) and bush killer (Cayratia japonica) tendrils around healthy and spider mite-infested kidney bean plants.
Analyzing the role of visual cues (mite webs), olfactory cues (plant volatiles), and direct contact with mites in influencing tendril behavior.

Main Results:

Ipomoea nil vines showed no significant difference in coiling around infested versus uninfested plants.
Cayratia japonica tendrils significantly avoided coiling around spider mite-infested plants compared to uninfested ones.
Avoidance behavior in C. japonica was primarily attributed to the presence of mite webs, not plant volatiles or direct mite contact.

Conclusions:

Cayratia japonica exhibits a specific avoidance strategy to prevent mite infestation, mediated by visual cues from webs.
This behavior can protect vines from direct contact infections by spider mites.
Ipomoea nil does not display similar avoidance, suggesting species-specific responses to mite-infested plants.