Greenhouse under siege: How a simple walnut shell can turn the tide

The presence of ants near a greenhouse often signals an imminent aphid infestation, as ants actively protect these pests to feed on their honeydew. Because targeting individual insects is ineffective, the most viable strategy is to eliminate the entire colony by targeting the queen. One practical method for controlling ant populations involves creating localized bait stations using walnut shells. These discarded shells serve as durable, natural containers that prevent insecticides from leaching directly into the soil. Building Walnut Shell Bait Stations Creating small, targeted insecticide delivery points to ensure poison reaches the ant colony's core.