The Caterpillar of the Pine Tree: Symptoms in Dogs That Should Be Aware

Between January and April, there have to be more careful with the caterpillar of the pine tree and the symptoms in dogs. Learn more about this threat and protect your best friend.

The Caterpillar of the Pine Tree Symptoms in Dogs That Should Be Aware

The caterpillar of the pine tree and the symptoms in dogs is something that must worry the owners of patudos, because a simple light contact with this animal can trigger severe reactions that can lead to death.

This is the insect that most defoliate pine trees and cedar trees in Portugal, and that reveals itself to be very dangerous, either to people, animals, and even to the trees themselves.

And for that reason it is an insect so dangerous? The caterpillar of the pine tree releases thousands of by those who are a threat to public health, being, thus, required a surveillance and constant care, as the hairs cause allergic reactions to human and domestic animals, at the level of the skin, eyes and respiratory tract.


The caterpillar of the pine tree and the symptoms in dogs differ in severity and intensity, which relates the form and means of exposure, as well as by the sensitivity of the animal.

You should be particularly aware of, since dogs are animals, highly curious by everything that surrounds them, that by could easily be attracted by the caterpillar of the pine, thus, exposed to the by toxic.

When you smell or bite of insects, the dogs are exposed to the toxicity of the by the and this is reflected almost immediately in the language, whose volume increases and its color changes to a bluish hue. If you do not take the animal to the vet and let pass some days, to know that you are committing a serious error, because the tissues may start to get necrotic, leading to the amputation, something that can happen between 6 to 10 days after contact. In addition, the infection may extend to the lips and throat.

Although this is one of the more severe symptoms and evident, there are others to which you should be aware of:

  • Hives;
  • Itching;
  • Lack of appetite;
  • Excessive salivation;
  • Vomiting;
  • Dysphagia – difficulty in swallowing;
  • Apathy;
  • Edema of the face – nose swollen;
  • Shocks anafiláticos;
  • Muscle tremors.


If you feel that your dog has come in contact with the caterpillar of the pine, should lead immediately to the veterinarian, because the sooner you apply the treatment to the animal, the more favourable will be the prognosis.

There really is no antidote, so treatment goes by resolve the symptoms as they appear. The affected area is washed and should be removed all by. Then apply an anti-inflammatory, painkillers and antibiotics, so as to prevent infections secondary.

The prognosis is usually reserved, in accordance with the gravity of the situation:

  • Mild cases: recovery in 10 days;
  • Severe cases: can lead to the hospitalization of the animal and the recovery can be time-consuming;
  • Very severe cases: the animal must be hospitalized, there may be the need to remove tissue dead, that can compromise the quality of life of the animal and, unfortunately, lead to death.


Is between January and April the caterpillar of the pine tree down from the trees to bury itself in the soil, something that is part of your development cycle, doing in the queue, as if it were a procession, hence to be known as processionária.

So, if you have pine trees at home, that is, the usual stroll with your pet in areas with pine trees, you should have some care, to avoid the serious health problems that you refer to.

In addition, you should take measures to end the caterpillar of the pine tree and their nests, as well as perform treatments to prevent their proliferation.