Plants in pest control
- Flour spray
- Soap spray
Precaution: Soap spray may injure foliage. Test sprays on few leaves before applying to entire plant. It may take 2 days for damage symptoms to appear.
- Collect thrips by gently shaking leaves and flowers onto a white sheet of paper or into a shallow cartoon box.
- Bright blue or royal blue sticky traps. Thrips are attracted to these colors.
To make your own sticky trap, spread petroleum jelly or used motor oil on a blue shade painted plywood, 6 cm x 15 cm or up in size. Place traps near the plants with enough distance that the leaves from sticking to the board (Thomas, 2002). The traps when hung should be positioned at a 60-75 cm zone above the plants.