Combating oak processionary moths

Have you detected an oak processionary moth? ✅ Effectively combat the caterpillars with GREEN GUARDIA neem oil and repellent spray and protect oak trees sustainably.

1. General information about oak processionary moths

The oak processionary moth (Thaumetopoea processionea) is a dangerous pest of oak trees. In addition to damaging the trees, its stinging hairs pose a serious threat to humans and animals, as they can cause skin irritation, respiratory problems, and allergic reactions.

The caterpillars usually appear in May and June, forming conspicuous processions (long chains of caterpillars) on the trunk or branches and creating large web nests. A severe infestation can significantly weaken or even kill the trees.

2. Detecting oak processionary moth infestation – typical signs

You can recognize an infestation by these signs:

  • Caterpillars in long rows (“processions”) on oak trunks or branches
  • Cob nests with molting remains, droppings and caterpillar skins on the trunk or in branch forks
  • Defoliation of oak leaves , sometimes entire crowns affected
  • Stinging hairs in the area that can irritate the skin and respiratory tract

⚠️ Important: Avoid direct contact with the caterpillars or nests – health hazard!

3. Preventing oak processionary moths – Tips for gardens and properties

Here's how you can prevent an infestation or contain it in time:

  • Regular inspection of oak trees in your own garden or on property boundaries
  • Early treatment in the caterpillar stage , before the stinging hairs develop
  • Strengthen trees through proper care, watering and fertilization
  • Prune affected branches in a timely manner (using protective measures, not yourself without equipment!)
  • In case of severe infestation in public areas: commission specialist companies to remove the infestation
Recommended product

With neem oil you can support your trees naturally and strengthen them against external influences.

  • Easy to use: Mix with water and spray directly onto the leaves – quick and easy to use.
  • Natural plant care: Derived from plant ingredients, without synthetic additives and without unpleasant odor.
  • Sustainable support: Promotes plant vitality and supports them over a longer period of time.
Power Neem Oil with Emulsifier for Houseplants & Garden Power Neem Oil with Emulsifier for Houseplants & Garden
Power Neem Oil with Emulsifier for Houseplants & Garden
€19,90
€19,90 /item

4. GREEN GUARDIA products against oak processionary moths

GREEN GUARDIA Neem Oil Plant Care

Neem oil is a natural solution for controlling oak processionary moths in their early stages. Sprayed directly onto the leaves and caterpillars, it disrupts the pests' development cycle. Neem oil has a lasting effect and can be applied multiple times throughout the season.

GREEN GUARDIA pest repellent spray

Our ready-to-use repellent spray is suitable for immediate use in acute infestations . It can be sprayed onto caterpillars and webs and provides fast results. Ideal for trees in the garden that require early protection.

👉 The combination of neem oil (preventive & development-inhibiting) and repellent spray (immediate effect) offers an effective strategy to contain the oak processionary moth and keep oak trees healthy.

✅ Conclusion: The oak processionary moth not only threatens trees, but also people and animals. With early control and GREEN GUARDIA products – neem oil and repellent spray – you can effectively combat the pest and protect your oak trees sustainably.