How to use bifenazate to kill bryobia mites?
How to use bifenazate to kill bryobia mites?
Mites hide on leaf undersides, so the key to spraying is ensuring the insecticide reaches every part of the undersides.
Spray direction
- Spray from below — position the nozzle beneath the leaves and spray upward, so the solution reaches the undersides.
- Alternatively, tilt the pot to make undersides more accessible.
- Spraying from above will deposit most of the solution on the upper surfaces, missing the undersides.
Spray areas
- Leaf undersides — where mites primarily live, distributed along veins.
- Also spray young shoots and stems.
- Spray the soil surface as well.
Spray technique
- Spray until the undersides are thoroughly wet and begin to drip.
- Hold the nozzle about 30 cm from the leaves.
- Lift each leaf to spray its underside.
- Do not miss the older leaves at the bottom of the plant.
Frequency
- Spray every 5-7 days.
- Continue for 2-3 applications.
- Check after each spray and re-treat any missed areas.
- Spray until undersides are dripping.
Combine with environmental adjustments
During spraying, combine with the following to improve control:
- Increase humidity — mites prefer dry conditions; misting increases air humidity.
- Reduce nitrogen fertilizer — temporarily reduce nitrogen to limit tender growth.
- Maintain ventilation — keep air circulating around plants.
- Remove old leaves — pick off heavily damaged older leaves to reduce mite populations.
Precautions
- Do not water within 24 hours after spraying to avoid diluting the residue.
- Do not spray during flowering.