New Zealand Flatworms
Mar. 13th, 2012 07:28 pmI think the reason I mixed up my spinaches the other day was probably because we'd just been told that New Zealand flatworms have just been found on the allotments.
These nasty little critters feed exclusively on earthworms and hence are not good at all for soil quality.
It's hard to say how harmful they are as there seems to be little definite information that isn't over a decade old. There's a suggestion that they may not be as bad as originally thought, I can't find any definitive studies.
The best way to trap them appears to be to place black plastic bags on the soil surface and then to cut the flatworms in half and drop them in salted water. Squashing them may not kill them.
These nasty little critters feed exclusively on earthworms and hence are not good at all for soil quality.

It's hard to say how harmful they are as there seems to be little definite information that isn't over a decade old. There's a suggestion that they may not be as bad as originally thought, I can't find any definitive studies.
The best way to trap them appears to be to place black plastic bags on the soil surface and then to cut the flatworms in half and drop them in salted water. Squashing them may not kill them.