Destructive aquatic weed reappears after 30-year absence in Botswana

The Botswana Department of Water Affairs (DWA) has appealed for emergency assistance to fight the resurgence of water lettuce (Pistia stratiotes), an invasive aquatic weed that displaces native plant species from water bodies. Addressing the 2nd Botswana Biodiversity Symposium held in Maun recently, DWA invasive weed expert Dr. Naidu Kurungudla…

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Agronomy: How to look after wetlands on your farm

Wetlands, which are home to a wide variety of fish and wildlife, can also be the lifeblood of farmers in low-rainfall areas. Wetlands – located along the shores of oceans, lakes, rivers and streams – protect properties surrounding these areas against flooding by ‘sponging’ up and storing excess water. They…

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