The symptoms of a red palm weevil infestation in palm trees only become visible after a while. Normally, it takes about a year for the effects to make themselves known. When this happens, the red palm weevil larvae will have already dug passages inside the trunk, making it essential that you act fast to try and save the tree – although, at times, it may be too late.
The first recorded appearances of the red palm weevil in Europe date back to 1996 in Spain. Just 10 years later, this pest had firmly established itself in palm trees throughout the Mediterranean. When the larvae of the red palm weevil causes damage to palm trees, it only becomes evident after a few months. These symptoms may vary depending on the species of palm tree infested. Here are a few of the most common:
In general, infestations caused by the larvae of Rhynchopohorus ferrugineus, which is the scientific name of this beetle, are only detected after a lot of damage has already been caused. This is why it’s important to check palm trees often and carefully. You should be looking for the following symptoms:
At present, endotherapy is the best solution we have to prevent or treat an infestation of this type. The recommended frequency will vary depending on which insecticide is applied, but it should be sufficiently often so as to ensure that the larvae eat the material impregnated with the insecticide and die as soon as possible, avoiding irreversible damage.
This technique has multiple advantages, including:
The steps involved are as follows:
We recommend applying effective preventive treatments such as endotherapy before you start to see the symptoms of red pam weevil infestation. At SOSPALM, we have extensive experience in these types of interventions.