Those weevils aren't tossed into the river by accident ... "If there is no oxygen, there’s no fish, there’s no crab, there’s no insects and so you completely destroy or alter the aquatic ...

After weevils effectively controlled Salvinia in ... If there's no oxygen, there's no fish, there's no crabs, there's no insects. And so you completely destroy or alter the aquatic ecosystem ...

Those weevils aren't tossed into the river by accident ... "If there is no oxygen, there’s no fish, there’s no crab, there’s no insects and so you completely destroy or alter the aquatic ...

South Africa is unleashing weevils imported from the United States in a bid to fight off the sprouting growth of Salvinia minima, an alien species of aquatic plant native to South America that is chok ...

Community members fish along the Hartbeespoort Dam in South Africa, on March 17, 2025, near Hyacinth plants in the water. (AP Photo/Themba Hadebe) ...