whiteflies
LITTLE BUGGER
Whiteflies might look delicate and harmless, but don’t be fooled - they can truly cause trouble for your plants.
These tiny, moth-like pests love to cluster on the undersides of leaves, sucking out sap and leaving behind sticky, sugary honeydew. Over time, this can attract mold and weaken your plant.
If your plant gives a puff of "snow" when you brush its leaves, you’ve probably got yourself some whiteflies!
Removal Methods
Whiteflies are especially drawn to vegetables, herbs and flowering houseplants. If left unchecked, they will quickly multiply and overwhelm your plant, or your whole crop! Isolate infested plants as soon as possible to stop the spread.
Select one method and give it a little time. If the bugs are still hanging around, try another. Patience is key!
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Keep the plant outside if possible. Whiteflies will fly and scatter once you start rinsing.
Use a firm spray to knock off whiteflies and nymphs.
Repeat every few days in combination with other treatments.
This does not remove eggs, but helps reduce active population.
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If a pest infestation gets out of control, sometimes you have to literally cut your losses.
Carefully trim any plant parts with large, crusty clusters of scale.
Bag up the clippings and dispose in the trash - do NOT compost!
Follow up with another removal method to target any stragglers.
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Place yellow sticky traps near the soil surface to catch flying whiteflies
Regularly replace traps when they become covered.
This does not directly treat the problem, but helps track and reduce adult numbers.
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Please read our Heads Up! on horticultural oil before using these methods.
Spray (best for larger infestations):
Use a ready-to-spray horticultural oil or mix a concentrate with water (per label instructions).
Pour into a spray bottle and shake well.
Spray your plant thoroughly, making sure the oil smothers active whiteflies and eggs.
Continue to spray every few days until whiteflies are gone.
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Please read our Heads Up! on neem oil before using this method:
Mix together equal parts 100% cold-pressed neem oil and unscented liquid castile soap.
Add mixture to warm water (per label instructions) in a spray bottle and shake well before each use.
Spray solution directly onto affected areas.
Reapply your homemade mix every few days until whiteflies are gone.
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Always spot test first before full commitment! Avoid spraying in direct sunlight to prevent leaf burn.
Use a ready-to-spray insecticidal soap or mix a concentrate with water (per label instructions).
Spray the entire plant, focusing on heavily infested areas. The soap must make direct contact with the whiteflies to work!
Repeat every few days until the whiteflies are gone.