Sal Borer Infestation Forces Felling of Over 17,000 Trees in Uttarakhand, Officials Call It Essential to Protect Forests

Dehradun | 27 March 2026 A large-scale forest management operation is underway in Dehradun and nearby regions as authorities prepare to fell more than 17,000 sal trees affected by a severe infestation of sal borer beetles. Forest officials have identified around 15,000 infected trees in Dehradun division and nearly 5,000 in the Kalsi forest division. The move, they say, is necessary to stop the spread of the pest and safeguard surrounding healthy forest areas. The sal borer, a wood-boring beetle known scientifically as Hoplocerambyx spinicornis, attacks trees by laying eggs beneath the bark. As the larvae grow, they feed on the inner tissues, disrupting the flow of nutrients and water, eventually causing the trees to dry out and die. Officials noted that while such infestations are not uncommon, their intensity can vary each year, with environmental factors like prolonged rainfall contributing to outbreaks. According to forest authorities, only severely affected trees are being marked for removal after detailed surveys and necessary approvals from the central environment ministry. Once felled, the trees are left within the forest temporarily to allow the insects to emerge and be destroyed, helping to break their life cycle. Experts have stated that felling remains the only proven large-scale method to control such infestations, as no widely effective alternative has yet been standardised despite ongoing research. Environmental experts have also pointed to deeper ecological concerns, noting that dense monoculture plantations of sal trees are more vulnerable to pest attacks. They have called for increased biodiversity in forest planning and greater involvement of local communities in conservation efforts. Officials maintain that the current action is a preventive step aimed at preserving the long-term health and sustainability of Uttarakhand’s forest ecosystems. Sal Borer Infestation Forces Felling of Over 17,000 Trees in Uttarakhand, Officials Call It Essential to Protect Forests A large-scale forest management operation is underway in Dehradun and nearby regions as authorities prepare to fell more than 17,000 sal trees affected by a severe infestation of sal borer beetles. Forest officials have identified around 15,000 infected trees in Dehradun division and nearly 5,000 in the Kalsi forest division. The move, they say, is necessary to stop the spread of the pest and safeguard surrounding healthy forest areas. The sal borer, a wood-boring beetle known scientifically as Hoplocerambyx spinicornis, attacks trees by laying eggs beneath the bark. As the larvae grow, they feed on the inner tissues, disrupting the flow of nutrients and water, eventually causing the trees to dry out and die. Officials noted that while such infestations are not uncommon, their intensity can vary each year, with environmental factors like prolonged rainfall contributing to outbreaks. According to forest authorities, only severely affected trees are being marked for removal after detailed surveys and necessary approvals from the central environment ministry. Once felled, the trees are left within the forest temporarily to allow the insects to emerge and be destroyed, helping to break their life cycle. Experts have stated that felling remains the only proven large-scale method to control such infestations, as no widely effective alternative has yet been standardised despite ongoing research. Environmental experts have also pointed to deeper ecological concerns, noting that dense monoculture plantations of sal trees are more vulnerable to pest attacks. They have called for increased biodiversity in forest planning and greater involvement of local communities in conservation efforts. Officials maintain that the current action is a preventive step aimed at preserving the long-term health and sustainability of Uttarakhand’s forest ecosystems.