Could brought in from outside or from another plant be causing spider mites?

Recently brought plants in. Been outside in your grow area. Fix: Quarantine any new plants for 2 weeks Change clothes after being outside before entering grow Neem oil spray all incoming plants

Could hot, dry conditions favor mite reproduction be causing spider mites?

Temps above 80°F with RH below 40%. Fix: Raise humidity to 55-65% (veg) Keep temps below 80°F Mites breed 10x faster at 85°F than 70°F

PestsUrgent — act today

Spider Mites on Cannabis

Spider mites are the #1 pest for indoor cannabis. They're tiny (barely visible), breed fast, and can destroy a grow in under 2 weeks if left untreated.

What it looks like

●Tiny yellow or white dots (stippling) on leaf tops
●Leaves take on a bronzed or silvery appearance
●Fine webbing on undersides of leaves or between branches (late stage)
●Tiny moving dots on leaf undersides (use a jeweler's loupe)

Quick diagnostic checks

1Spray ALL surfaces (top AND bottom of leaves) with neem oil or Mighty Wash

2Repeat every 3-4 days for 2 weeks (breaks the egg cycle)

3Never spray in flower past week 3 — use predatory mites instead

Causes ranked by likelihood

1. Brought in from outside or from another plant

Most common

Signs

●Recently brought plants in
●Been outside in your grow area

Fix

✓Quarantine any new plants for 2 weeks
✓Change clothes after being outside before entering grow
✓Neem oil spray all incoming plants

2. Hot, dry conditions favor mite reproduction

Common

Signs

●Temps above 80°F with RH below 40%

Fix

✓Raise humidity to 55-65% (veg)
✓Keep temps below 80°F
✓Mites breed 10x faster at 85°F than 70°F

⚠️When to worry

Always. Mites double every 3 days. If you see them in flower, your grow is in serious danger — act within 24 hours.

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