Hi Rowly,
I've had turtles doing damage to at least 11 varieties of water lily in the last year here, a humane turtle trap has put a stop to damage from them very effectively this last month, four large turtles evicted, to date, no sign of further damage currently...
Chicken mesh (2" x 3" grid) Looks like it would be cost affective to keep ducks off.... if four posts were driven in and the mesh nailed flat across the top of water lily baskets being established, that would probably keep ducks off rhisomes a foot or two deep
Regards, Andy
