We provide a highly effective & ecological method to exterminate the pine tree processionary caterpillar in Mallorca.

The Processionary Caterpillar is a menace that can provoke severe allergic reactions and could also be lethal to dogs and cats. It also represents a high risk to the trees through the action of the larvae eating pine needles as this can lead to a quick death of the pine tree

The Endotherapy or trunk injection system offers a much more effective alternative for the treatment of trees than spraying, since the substances are directly injected to the vascular system of the tree. This system provides an ecologic alternative for the treatment of trees as substances go directly to the tree resulting in much more efficient and fast results, without polluting the environment. Learn more

Pine processionary caterpillars represent a public health hazard because they have thousands of hairs which contain an urticating, or irritating, protein called thaumetopoein. These hairs can be blown by the wind into contact with people resulting in painful skin irritations and rashes and, in some cases, serious allergic reactionsLearn more

Your dog may pick up the hairs on its paws and lick them because of an irritation. This will bring the hairs into contact with the mouth and nose. The lips, tongue, and nose can swell up to a huge size until the whole head is swollen. The tongue may become so large and swollen that partial or full amputation may be necessary. You might also notice a very bad smell. Because of the swelling the air passages can also become blocked leading to suffocation and death. Learn more

Our system, the trunk injection, is an alternative method of treatment of the pine caterpillar plague. It is much more effective and sustainable than the traditional and highly contaminating spraying of chemicals that pollute the environment, soil and water.

Frequently Asked Questions

… so-called because of their habit of walking head to tail in search of food, the processionary caterpillar is probably the most dangerous insect in the Mediterranean region. They are generally reddish-brown in colour and covered with long grey/white hairs known as setae.


There may be hundreds of caterpillars seen walking nose to tail, winding along roadways, paths or golfing greens. The caterpillars are covered with brittle hairs, which cause a severe reaction when they come into contact with human skin.


The hairs remain toxic even after the caterpillar has died and can also be carried in the air causing respiratory damage if breathed in. The caterpillars present a high risk during spring and are most virulent from late February. After pupation the resultant moth is an important food source for many animals including bats, birds and reptiles.

When in Spain many people may wonder about scorpions, spiders and venomous snakes and will not be aware that they are much more likely to endanger themselves and their pets by getting too close to an innocent looking line of caterpillars that can be found crossing a pavement, road or footpath during the first months of each year.


The contact with pine processionary caterpillar (lepidopterism) can produce a strong inflammatory reaction on skin and mucous membranes. Other findings include hyperthermia, tachypnoea, respiratory distress, cyanosis and tongue oedema, labial angioedema, ptyalism, bilateral submandibular lymphadenomegaly, conjunctivitis and severe tongue necrosis.

At the end of summer, adult moths mate, and the females lay eggs on the leaves of trees. The caterpillars hatch out of the eggs 4 weeks later to start feeding themselves with the pine leaves.


From the end of september to the end of december —slight variations can happen from year to year depending on the weather— is when the endotherapy treatment should be applied. The tree will absorb the nutrient throughout its vascular system and will carry it all the way to the leaves just before the caterpillars start eating them.

The Trunk Injection (or Endotherapy) System consists of injecting a nutrient into the trunk that is distributed throughout the vascular system of the tree. It is an alternative method of phytosanitary treatment which emphasizes on the absence of sprays or spraying of chemicals that pollute the environment, soil and water, as well as it is completely harmless to the health of the citizens, birds and other animals.

Endotherapy (Trunk Injection)
  • Efficiency: By injecting the active ingredient directly into the sap of the tree, we ensure an even distribution of the product and the right amount to achieve a positive and immediate reaction.
  • Persistence: With a single application is sufficient in most cases to correct the deficiency or solve the problem that the tree from its pathology, staying in it between one or two years. Sprayed chemicals efficiency can decrease dramatically when it rains.
  • Speed of action: The time it takes the tree to absorb any of these shots, is between 30 seconds and 15 minutes depending on the state of the tree and variety of it.
  • Cleaning: Using this system, we avoid environmental pollution, especially in the case of pest management.
  • Other pagues: Valid method for tackling other pests apart from the Processionary Caterpillar.
Spraying Method
  • Pollution: Spraying of chemicals pollute the environment, soil and water and can be extremely harmful to humans & animals.
  • Less efficient: While the tree injection is a localized infusion of liquids along the trunk, spraying might not reach every part of the tree, can be blown away by the wind and easily washed up with the rain.
  • Dangerous: If your have a small garden, the sprayed nutrient (poison) can affect other houses, schools, parks…
  • It´s more expensive!: While the trunk injection method protects your pines for one or two years, you´ll need to re-spray the trees periodically to ensure very single leaf has been watered after a few weeks, if it rains, if its windy (moths can fly from tree to tree), etc.
Autumn is the best time to apply the Trunk Injection Method. The tree will quickly absorb the nutrient (poison) throughout its vascular system and will carry it all the way to the leaves just before the caterpillars start eating them.

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The Pine Processionary Caterpillar (Thaumetopoea pityocampa) is a common pest in the Balearics. Every Spring, residents must be on their guard when the caterpillars or larvae, who have overwintered in

Skin irritations (caterpillar dermatitis)

One reaction after contact with stinging hairs of the processionary caterpillar may be extreme itching; this can occur hours after contact, but may continue over several days. After contact with


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