The decision of the Valencia City Hall to cut down more than 7.000 acacias of the city's streets and parks has sparked one of the most intense environmental and neighborhood controversies of recent times. The measure, motivated by the brown mealybug plague (Pulvinaria psidii) which seriously affects these trees, has sparked strong opposition from the opposition, environmental groups and affected neighborhoods. The debate focuses on key issues such as transparency in municipal decision-making, the effectiveness of applied treatments, the future of urban biodiversity and the sustainable management of green areas.
Why the massive felling of acacia trees? Origin and scope of the controversy
Acacias, also known as What are the characteristics of the acacia tree? or melias, constitute the third most abundant species in the urban trees of Valencia. Spread across neighborhoods such as Montolivet, La Petxina, Pla del Remei and l'Eixample, their presence adds up to more than 7.500 copies, according to municipal data. In recent years, the incidence of the cochineal pest has grown in a way exponential, going from anecdotal cases to a real infestation that has left many sidewalks and public spaces covered in sticky molasses, generating a problem of widespread dirt and growing neighborhood unrest.
La molasses The main argument for logging is that insects infect trees. It is not only annoying and inconvenient, but also damages street furniture and vehicles and makes pedestrian traffic difficult on many streets. The Parks and Gardens Department has officially informed many citizens that the problem has exceeded the capacity to be controlled by usual treatments, such as endotherapy, potassium soap or the use of authorized insecticides such as acetamiprid.
Municipal management: technical decisions, political criticism and reporting requirements
La Department of Parks and Gardens, Under the direction of Juanma Badenas (Vox), has explained that the affected acacias will be progressively withdrawn as they enter the regression phase. The approach, publicly defended by both the Mayor Maria Jose Catala as by the person in charge of the area, is based on the current impossibility of saving the affected trees, opting to replace them with other species that are more resistant and less susceptible to the pest.
However, the political opposition —with Elisa Worth (PSPV-PSOE) and Sergi Campillo (CompromÃs) at the head—has described the performance as a genuine arboricide and has demanded access to all technical reports that support the need for massive logging. ValÃa has announced the submission of complaints to the Sindicatura de Comptes and the SÃndic de Greuges, arguing the alleged lack of sufficient technical documentation to justify the removal of thousands of trees. Furthermore, the local government is accused of not having replanted the numerous empty tree pits or of having a Master Plan for Trees, as it happens in other cities.
For its part, the administration insists that the plan is not a immediate massive logging, but a progressive process subject to technical criteria, which seeks a "quiet restoration" that prioritizes urban health but also the gradual restoration of trees through species more suited to Valencia's urban environment.
The reasons behind logging: pest infestation, cleanup, and urban waste management
The acacias infected by the brown mealybug They release a sugary syrup that coats sidewalks, vehicles, and public furniture, especially during hot and humid periods. This substance is not only unpleasant, but promotes the proliferation of fungi and bacteria, and can contribute to slippery accidents. The accumulation of complaints from residents about dirty streets has led the City Council to prioritize replacement, although many groups consider this argument insufficient.
Experts and citizen platforms remember that other urban species They also generate waste (flowers, leaves or honeydew), such as jacarandas and plane trees, but are not eliminated en masse For these reasons, the decision is being made to strengthen cleaning and maintenance. There is a call to review the frequency of cleaning and street sweeping services, since, according to residents' accounts, in some neighborhoods, months can go by without municipal cleaning crews taking any thorough action.
The administration maintains that biological treatments and endotherapy —consisting of the injection of phytosanitary products into the trunk— have resulted ineffective against the advance of the plague. For this reason, collaboration has been sought with the Polytechnic University of Valencia to investigate new alternatives and stop the spread of the infestation.
The neighborhood debate: petitions, participation, and the phenomenon of empty tree pits
Numerous affected neighbors have started signature collection campaigns and formal claims to demand the immediate replacement of lost trees, especially in places where the shade and environmental protection offered by acacias are irreplaceable. The concern is twofold: on the one hand, the loss of green heritage, and on the other hand, the failure to meet replanting deadlines and commitments assumed by the local administration.
It is estimated that in Valencia there are more than 4.000 empty tree pits, according to complaints from CompromÃs, which represents a significant lack of vegetation cover and questions the effectiveness of replacement policies. The replacement process, in many cases, drags on for months or years, increasing the sense of abandonment and disaffection among citizens toward municipal management.
The lack of accurate information about replanting dates And the species selected for replacement further fuels the controversy. Residents of iconic neighborhoods—such as those around Tabacalera, Exposición, and Manuel Candela—report that tree pits can remain empty for very long periods despite repeated municipal commitments.
Replacement and alternatives: what species will replace acacias?
The City Council has explained that The felled melias will not be replaced by the same species, but more resistant trees to pests and diseases. However, the selected species and selection criteria have not been systematically specified, beyond ensuring that trees that require less maintenance and are more suitable for urban conditions and climate change are prioritized.
El political debate focuses on the lack of a Master Plan for Trees and the need to make substitutions under exclusively technical criteria. Opposition and environmental groups demand greater transparency in replacement criteria and citizen participation in assessing which species should be part of the urban green heritage.
The experience of other cities, such as Madrid, serves as a warning: accelerated replacement, without adequate technical criteria, can cause deficiencies in young plantations and reduce their viability. Furthermore, soil compaction or the selection of species unsuitable for the urban environment can undermine the success of plantations in the medium term.
Environmental, social and urban planning implications
La massive removal of acacia trees not only affects the urban landscape and the shade on the streets, but also the environmental qualityThese trees contribute to the reduction of air pollution, temperature regulation, and improved psychological well-being of residents. Environmental organizations and experts emphasize the importance of preserving mature trees in the face of the tendency to replace them with less developed species, which take years to reach their full potential.
In the context of European Green Capital and in the midst of the climate crisis, the felling of thousands of urban trees is perceived as a contradiction with respect to international commitments to sustainability and climate change adaptation. Advocates of sustainable reforestation argue that removing mature trees should be the last option, always prioritizing the recovery and adaptive management of existing trees.
Transparency, participation and challenges of urban management
A recurring aspect in the conflict has been the lack of information and transparency on the reports, diagnoses, and alternatives assessed in making the decision to deforest. Both the municipal opposition and neighborhood associations have criticized the lack of prior public consultations and the poor communication regarding the phases and conditions of the restoration. In many cases, the citizens have felt excluded of the participation and decision-making processes on a topic directly related to their daily quality of life.
The controversy has served to put on the table the need for more participatory and sustainable urban tree policies, which include periodic audits, rigorous technical reports, and agreed-upon replacement plans. The implementation of good practices, as in other European capitals, can help avoid serious errors in plant heritage management and improve the balance between environmental and urban needs.
The current situation of the acacias in Valencia reflects a complex and multifactorial challenge In urban management, it requires innovation in biological pest control, more effective cleaning policies, transparency in decision-making, and, above all, a firm commitment to protecting and renaturalizing the city. The outcome of this controversy will set a precedent for how Valencia addresses the maintenance, renovation, and expansion of its urban trees.
