- Koppert's yellow Horiver cards are an easy, effective way to monitor flying agricultural insects. The yellow color attracts insects because it looks like young leaves and flowers; as soon as they come close, they stick to the strong adhesive on the card surface.
- The cards do more than catch insects: above all, they help you as a grower detect infestations early and judge their severity before they grow and cause losses.
Key Features
- Yellow color attracts insects such as whitefly, thrips and aphids.
- Strong, long-lasting adhesive.
- Resistant to heat and conditions in greenhouses or open fields.
- Printed grid squares make insect counting and infestation estimates easy.
- Pre-punched holes for easy hanging on wires or posts.
- Safe and eco-friendly – chemical-free.
Specifications
- Trade name: Horiver Yellow
- Manufacturer: Koppert
- Type: Agricultural sticky monitoring cards
- Size: 25 x 10 cm
- Pack: 10 cards
- Country of origin: Netherlands
Directions for Use
- Distribute the cards evenly in the greenhouse or field so they cover all rows.
- Hang each card on a wire or post 20–30 cm above the top of the plants; raise the cards gradually as the crop grows so they stay at insect flight level.
- Recommended number of cards:
- Open fields: about 20 cards per feddan.
- Greenhouses: about 50 cards per feddan.
- Tomatoes (to monitor Tuta absoluta): at least one card per 100 m².
- Replace the cards when they are full of insects or covered with dust.
Target Insects
- Whitefly
- Thrips
- Winged aphids
- Leaf miners
- Fungus gnats
Orkida Tip
- Yellow cards are a smart early-detection tool, not a replacement for other control methods. Used correctly, they help you spot infestations early and act at the right time, whether with roller traps or pesticides.