BAU identifies invasive whitefly species on coconut

Staff Reporter Mymensingh :

Researchers from the Department of Entomology, Bangladesh Agricultural University (BAU) have identified an invasive insect pest, Bondar’s Nesting Whitefly (BNW) (Paraleyrodes bondari Peracchi). Led by Professor Dr. Gopal Das, the team discovered BNW during an extensive survey across the country’s 30 Agro-Ecological Zones as part of a Krishi Gobeshona Foundation (KGF)-funded project on the bio-ecology and morpho-molecular characterization of the Rugose Spiralling Whitefly (RSW) (Aleurodicus rugioperculatus Martin), another invasive pest reported in 2019.
The Bondar’s Nesting Whitefly was observed on coconut leaves in Khulna, Bagerhat, and Jashore. Previously reported in Kerala (2018), West Bengal (2021), and Sri Lanka (January 2024), this discovery marks its first occurrence in Bangladesh. The BNW, significantly smaller than RSW, is distinguished by oblique X-shaped gray bands on its front wings and stalked eggs laid in clusters-features rarely seen in other whitefly species.
The coexistence of BNW and RSW on coconut leaves has raised alarms, as coconut production has already been severely impacted by RSW attacks. Experts fear the invasion of BNW could further hinder efforts to boost coconut production in the country.
Molecular studies are underway to confirm the species identification, offering hope for developing targeted pest management strategies. This discovery underscores the urgent need for research and intervention to protect Bangladesh’s coconut industry from invasive pests.