Avocado growers on Granada’s Tropical Coast are facing a double threat: persistent drought and the recent arrival of the destructive ambrosia beetle. While drought conditions have already impacted the region’s avocado production, the detection of the ambrosia beetle in Motril has sparked new concerns.
Detected in 2023, this beetle has forced authorities to cut down 18 ornamental trees and set up 25 traps across Motril to contain its spread. Experts from the Junta de Andalucía have worked for over 10 months to monitor and prevent its impact on the region’s vital agriculture.
Potential catastrophe for avocado growers
This insect, known for burrowing into tree branches and spreading harmful fungi, has devastated avocado farms in other countries. Although the beetle has primarily been found on ornamental plants in the region, the risk of it spreading to avocado orchards has raised alarms among farmers and agricultural officials. Early detection and rapid action are critical, according to experts, to prevent a widespread outbreak.
Ongoing monitoring and prevention efforts
Authorities have implemented a wide-ranging monitoring network, collecting samples and analysing the behaviour of the beetle. Over 27,000 specimens have been classified, but the discovery of the ambrosia beetle is troubling. Experts continue to stress the importance of maintaining plant health and following strict protocols to avoid further spread. These include ensuring proper sanitation of tools and avoiding the transport of infected wood.
Call for greater control measures
Motril has managed to control the infestation so far. However, scientists warn that these beetles can quickly spread outside their natural habitats, becoming a serious threat. The challenge now is ensuring that farmers, gardeners, and authorities remain vigilant in monitoring for any signs of the beetle’s expansion to safeguard the region’s agriculture.
How to detect the ambrosia beetle?
Detecting ambrosia beetle infestation in avocado trees is crucial to prevent crop damage. Key signs include small boreholes in the wood, where beetles penetrate the tree up to 4 cm deep. You might also notice sawdust or wood dust around these holes, indicating beetle activity. Infested trees may show signs of wilting, caused by the beetle’s association with pathogenic fungi. Monitoring traps can also help identify infestations early. If you spot these signs, it’s vital to contact a plant health specialist for confirmation and management.