To tackle the issue of these insects swarming on the Taj Mahal and causing it to turn green, the Archaeological Survey of India (ASI) has initiated a comprehensive review aimed at finding a sustainable and lasting solution.
Rajkumar Patel, a Superintending archaeologist, told Indian media that the ASI has been constantly working to eliminate the blemishes by carefully washing them with distilled water and gently rubbing them with a cotton cloth.
However, despite their efforts, the insects continue to resurface during their breeding season, which occurs between March and April, as well as September and October.
"Despite the decrease in temperature, the insects continue to reproduce and leave unsightly stains on the marble and inlay craftsmanship. Previously, the insects disappeared by October-end," revealed Rajkumar Patel, a Superintending archaeologist, in an interview with Indian media.
Due to this, the North wall of the World Heritage Site has been adversely affected.
"This is not a uniform problem. It is restricted only to the Taj's riverside face," Patel said.
Patel added that the issue with insects has been a constant challenge since 2015, except for 2020 when the reduced pollution levels during the lockdown provided temporary relief.
The chemical department of ASI is actively researching methods to halt the growth of insects.
Moreover, an Agra-based doctor and environmentalist Sharad Gupta proposed an innovative solution by increasing water flow in the Yamuna river and reducing pollution levels.