Ecologists warn against planting of Conocarpus plant species along highways and medians

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Conocarpus works  taxon  planted successful  a median connected  a road  successful  Tamil Nadu.

Conocarpus works taxon planted successful a median connected a road successful Tamil Nadu. | Photo Credit: SPECIAL ARRANGEMENT

Despite explicit warnings from environmentalists and broad bans successful States similar Gujarat and Telangana, caller road improvement projects crossed Tamil Nadu are inexplicably continuing to works the invasive Conocarpus tree.

For years, the sleek foliage of the Conocarpus tree (Conocarpus erectus), autochthonal to the tropical America and Mexico, was hailed arsenic the ultimate saviour for India’s municipality afforestation.  

Chosen by road planners and civic authorities for its lightning-fast maturation and quality to enactment lush during brutal summers, this exotic taxon was planted by the millions.  

However, this cosmetic greening has travel astatine a terrible ecological and nationalist wellness cost. 

This, according to ecologists, prompted strict government bans and wide uprooting drives crossed states similar Gujarat and Telangana. 

An ecologist named Saravanan from Udumalpet, said, during winter, the histrion releases monolithic amounts of airborne pollen, which nationalist wellness data directly links to a terrible spike successful seasonal allergies, chronic coughs, and asthma attacks. 

Beneath the surface, its aggressively invasive basal strategy wreaks havoc connected municipality infrastructure.  

“In hunt for moisture, the roots effortlessly penetrate concrete, fracturing drinking h2o pipelines, damaging telecommunication cables, and choking metropolis sewage networks,” helium added. 

“This degradation is peculiarly acute on India’s expanding nationalist highways. Planted densely wrong constrictive medians, Conocarpus acts arsenic a massive subterranean network,” helium added.  

It sucks out tremendous volumes of h2o daily, severely depleting localised groundwater reserves and dehydrating adjacent cultivation soil, Mr. Saravanan noted.  

“It’s aggressive basal mats choke retired hardy autochthonal shrubs similar Nerium and Bougainvillea, altering the soil’s nutrient rhythm and destroying indispensable microbial habitats. Above ground, its accelerated growth frequently obstructs streetlights, road signage, and information cameras, creating a nonstop hazard for commuters,” helium noted.  

Despite wide warnings regarding these ecological hazards, caller road improvement projects person inexplicably continued to present the species. 

Experts argued that the Highways Department indispensable strictly monitor and modulate these plantations, as such invisible, slow-burning biology threats can ultimately inflict catastrophic harm connected the section ecosystem. 

This should beryllium replaced with autochthonal Indian taxon similar Neem, Peepal, Pongam, and section Banyan that ensures sustainable greening. 

Published - May 24, 2026 08:19 p.m. IST

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