Red palm weevil plague devastates Malaga’s historic palms – Look out for these symptoms now

The Costa del Sol area is currently under a plague of red palm weevils, 2 to 4 centimetre beetle-like bugs that tunnel their way into the trunks of palm trees to feast and make nests, which eventually can be destructive and fell entire palm trees and other similar plants.

Malaga Council has already had to replace four Canary Island palms of more than 125 years old after the red palm weevil destroyed them in Paseo del Parque and Plaza de la Marina beside major streets and footpaths. Council teams have carried out removal and replanting to keep the historic tree alignment intact. Fresh specimens of the same species are due to go in once stumps are cleared in coming days.

Despite every available preventive and curative protocol, the veteran trees could not recover. Advanced age combined with over 15 years of continuous chemical applications led to phytotoxicity that blocked any chance of survival.

Red palm weevil plague strikes hard across Malaga

Local government has fought this invasive pest for years with innovative tools. Seismic sensors now monitor 204 palms in high-profile spots such as Paseo del Parque, Alameda de Colón, Hospital Noble, Plaza de la Marina and Plaza Poeta Alfonso Canales after a contract signed in late 2020. Detection first occurred in the city during the early 2000s, and the insect continues to grow in numbers and threaten ornamental palms throughout southern Spain.

Key symptoms of red palm weevil infestation

Gardeners might observe wilting or drooping fronds, especially in the central crown where new leaves turn yellow to reddish-brown. Holes appear in the trunk or frond bases with chewed fibres pushed out and brown viscous liquid oozing out. A fermented odour or crunching sounds from feeding larvae inside the trunks are a sign of active damage. Advanced cases produce an umbrella-shaped crown or sudden collapse that endangers people and property below.

Dangers demand urgent professional help

Rapid internal destruction will weaken trunks until trees fall without warning. Infestations spread quickly to nearby healthy palms through adult flight or moved material. Residents spotting any signs should contact qualified arborists or council services straight away rather than attempt home remedies. Early expert assessment offers the only realistic hope of saving affected trees and halting further outbreaks along the Costa del Sol.

Everyone with palms on their property should check regularly so as to support coastal-wide prevention to limit this ongoing threat.