Bug Scan Blue 10pcs (25x10cm)

Ten blue sticky traps, 25 by 10 centimetres. In a grow room, blue does exactly one thing, and that thing matters: it attracts thrips, the pest you almost never see coming with the naked eye.

Why thrips in particular needs a trap

Thrips is small, builds pressure fast, and spends most of its life off the leaf you are looking at. The eggs sit inside leaf tissue, the pupae in the soil. What you do eventually see is the damage: silvery-grey streaks on the leaf with small black specks in them. By that point you are several generations behind.

A blue trap brings that arrival forward. Adult thrips fly and respond strongly to blue, so you catch the first individuals before there is a streak on any leaf. With a pest whose treatment takes days and several passes, that head start is the whole difference.

Measuring, not controlling

Do not expect the traps to catch the infestation away; the numbers are far too small. They are a signal. Hang them from the start, just above the canopy, and count them once or twice a week. Zero, zero, two is a reason to act, even if the crop still looks fine.

Hang several spread out, and certainly near the air intake, because that is where thrips comes in. If a trap no longer feels tacky or is covered in dust, replace it; a trap that does not stick does not measure.

Alongside yellow, not instead of

Blue is specific. Whitefly, leafminer, fungus gnat and aphid respond to yellow and largely ignore blue. Hang only blue and you will see thrips coming and nothing else. Both colours side by side gives a complete picture.

Technical Specifications:

• Quantity: 10 traps
• Size: 25 x 10 cm
• Colour: blue
• Attracts: thrips
• Function: early detection
• Placement: just above the canopy, near the air intake
• Checking: count 1 to 2 times per week
• Pair with: yellow traps for whitefly, aphid and fungus gnat

Frequently asked questions

Why blue rather than yellow for thrips? Thrips responds strongly to blue and barely to yellow. For the other flying pests it is exactly the other way round.

Will this control thrips? No. You catch too few to slow a population. The gain is knowing before you see the damage.

How do I recognise thrips damage? Silvery-grey streaks on the leaf with small black specks. Once you see that, you are several generations late.

Do I need yellow traps as well? For a complete picture, yes. Blue sees thrips, yellow sees whitefly, aphid and fungus gnat.