FIGHTING OAK PROCESSIONARY MOTH

In the context of health protection, measures to combat the oak processionary moth are always necessary when people are endangered by poisonous caterpillar hair, and a longer-term closure of the affected areas is not possible. This is more minor the case in forest areas than in public places, where there is a significantly higher fluctuation of passers-by, residents, walkers and other groups. 

The question of which particular form of oak processionary moth control is used at which point in time depends primarily on the biology and development of the oak processionary moth. Since the caterpillars develop their stinging hairs immediately after the 2nd moult in the 3rd larval stage, measures to prevent the oak processionary caterpillars must be carried out by the end of April / mid-May. Highly effective growth regulators have used that stop the development process of the oak processionary moth. 

From the end of May/beginning of June, the oak processionary moth has already started developing stinging hairs and building web nests. Since it is too late for preventive treatment at this point, only mechanical measures in the context of acute control can help.

Oak processionary moth?

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Preventive control of the oak processionary moth

AAA Termites and Pest Control offer its customers a spray method that has been tried and tested over many years for preventive control to stop the population development of the oak processionary moth in the stage before the poisonous stinging hairs develop. It has been proven that effective oak processionary moth treatment begins with appropriate preventive measures. Through special preparations, so-called population inhibitors, the development of the oak processionary moth is so severely restricted that later control actions are only required selectively. 

The AAA Termites and Pest Control spraying process aim at the first three developmental stages of the oak processionary moth in spring, usually from the end of April to mid-May when the larvae have not yet developed any poisonous hairs capable of flying. AAA Termites and Pest Control only work with approved and permitted biocides/preparations that are only effective against the oak processionary moth but not against humans, domestic animals, vertebrates or farm animals such as bees. 

The principle of action is based on the fact that the oak processionary caterpillars ingest the preparations during normal feeding activities. The result is an inhibition of the so-called chitin synthesis (moulting), i.e. the cuticle/skin of the larvae is not newly formed, which ultimately leads to the death of the oak processionary moth. 

AAA Termites and Pest Control uses a special, tried and tested application technique. The preparation is applied to utilise a blower-assisted motor syringe; an electrostatic charge of the spray mist also ensures improved adhesion of the leaves. The substrate can be optimally dosed using a micro-dosing pump. The high-performance axial fan enables an action radius of over 30 meters during treatment. Elevator or caterpillar climbers are used depending on the terrain and operating conditions. In this way, the oak processionary moth caterpillars are reliably reached.

Advantages of preventive control with AAA Termites and Pest Control

    • Intelligent management of the oak processionary moth population before possible damage to health occurs.
    • Gentle treatment – effective against the oak processionary moth, no harm to people, farm animals or nature.
    • It can be used in all conceivable environments.
    • Active citizen information on request (press work, information sheets, brochures, etc.) about the oak processionary moth.

Acute control of the oak processionary moth

When the stinging hairs of the oak processionary moth have developed, and pupation of the caterpillars begins, mechanical methods of control are used. These methods are used from the end of May, as the organic residues of the oak processionary moth remain dangerous all year round even after the metamorphosis into a butterfly in summer and can therefore pose health risks for humans.

Conventional techniques for combating:

  • Extraction of caterpillars, web nests, skin residues using special extraction devices and professional disposal of the extracted material. 
  • Burning off all organic substances of the oak processionary moth with gas burners. 
  • The poisonous caterpillar hairs stick together in the web through preparations with a high binding capacity and subsequent collection in airtight containers and subsequent disposal.

Some of the mechanical techniques used are very problematic. 

When removing nests with a high-pressure water jet, the poisonous stinging hairs can be very swirled. Flaming the web nests with a gas burner is also not recommended, as flaming causes upwelling, which leads to the further spatial spread of the poison hairs. There is also the risk of the gas burners destroying valuable tree substance during treatment. There is also a risk of fire due to the seasonally arid plant environment.

AAA Termites and Pest Control’s suction process:

The AAA Termites and Pest Control suction process is the method of choice for sensitive, residue-free and cost-effective control of the oak processionary moth. The web nests, including caterpillars, gift hair and moulting residues, are bound or glued by a mixture of special vegetable oils. This is followed by professional removal using special high-performance suction devices. When all organic substances of the oak processionary moth have been completely removed from the oak tree, the biohazardous material is correctly disposed of in a particular incineration plant. 

Acute control oak

Advantages of acute control with AAA Termites and Pest Control

    • Emergency readiness: Fast and uncomplicated handling in critical situations (kindergartens, schools, public baths, cemeteries, etc.). By tying and sucking off the poison hair of the oak processionary moth, spatial drift and thus danger is prevented.
    • Effective: All organic substances of the oak processionary moth are completely and residue-free removed.
    • Ecological: The treatment does not damage the tree substance.
    • Competent: Experienced AAA Termites and Pest Control expert teams with optimal technical equipment (apparatus, preparations, protective clothing, etc.). As well as the mediation of climbing equipment, aerial work platforms and support in obtaining exception and/or installation permits, construction site safeguards, etc.