How do I fix thrips on cannabis?

Minute, elongated insects that scrape plant cells and suck out the contents, leaving silvery streaks on leaves. They can transmit viruses and are difficult to control. Apply blue sticky traps to monitor and catch adults. Spray with insecticidal soap or spinosad on leaf undersides. Release predatory mites (Amblyseius cucumeris) for biological control.

Visual Guide

Thrips.

Apply blue sticky traps to monitor and catch adults

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Photo

Pests

Minute, elongated insects that scrape plant cells and suck out the contents, leaving silvery streaks on leaves. They can transmit viruses and are difficult to control.

Looks like this

Silvery streaks or patches on leaves
Tiny black specks (frass) on leaf surfaces
Distorted, papery new growth

Solve it with Vitaponix

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How to fix it

Apply blue sticky traps to monitor and catch adults
Spray with insecticidal soap or spinosad on leaf undersides
Release predatory mites (Amblyseius cucumeris) for biological control

Why it happens

Warm, dry conditions
Infested clones or nearby outdoor plants
Open vents without insect screens

Prevent it

Quarantine and inspect all new plants
Install fine mesh on intake vents
Follow the official feeding chart humidity targets for each growth stage

Doses and targets come from the official Vitaponix feeding chart. Vitaponix nutrients are plant nutrition, not pesticides or fungicides.

Prevent it next time

Get the full 10-week feeding schedule.

Open the feeding chart Shop Vitaponix →