Box Tree Caterpillar Nematodes

Box Tree Caterpillar Nematodes are a highly effective solution for controlling the box tree caterpillar, a common pest affecting box trees across the UK. This specialised mix of Steinernema nematodes covers up to 60 square meters and targets the caterpillars directly, providing a chemical-free approach to pest management.

What are box tree caterpillar nematodes?

Box tree caterpillar nematodes are microscopic parasites that specifically target box tree caterpillars. These nematodes invade and kill the caterpillars while reproducing inside them, ensuring ongoing control as they release more nematodes into the soil.

When to apply box tree caterpillar nematodes

The best time to apply these nematodes is between March and October when box tree caterpillar activity is highest. This timing allows the nematodes to effectively target and manage caterpillar populations during their peak feeding period.

Identifying box tree caterpillar infestations

Pest appearance: Box tree caterpillars start as green and yellow with blackheads, maturing into black and white striped larvae.

Infestation indicators: Look for signs of defoliation, webbing on plants, and visible caterpillars. These symptoms indicate an infestation and the need for treatment.

Initial signs: Caterpillars create webbing over their feeding areas and may cause noticeable dieback on box trees, especially if the plants have been recently trimmed.

Optimal conditions for application

Apply the nematodes when the soil temperature is at least 10°C, avoiding extreme temperatures. For best results, keep the soil moist for three to four weeks following application.

Storage and application tips

Storage: Store nematodes in the refrigerator or at temperatures below 5°C immediately after delivery to maintain their effectiveness.

Application Tips: Water plants within 30 minutes after applying the nematodes to wash them off the leaves and into the soil. Ensure the soil remains moist for optimal results.