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Spotted knapweed is not known to toxic, though spines of mature plants could cause injury to grazing animals. See Related Links.

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15y ago

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What eats a knapweed?

Yes, there are several species of biological controls that attack several of the different knapweed species found in the United States. There are excellent insects available for diffuse, spotted and squarerose knapweed.


What are ways in which spotted knapweed is not a pest?

Acting as a ground cover, contributing to soil phosphorus levels, functioning as a natural herbicide, providing floral color, and supporting native plants (Gaillardia grandiflora, Lupinus sericeus) are ways in which spotted knapweed (Centaurea maculosa) is not a pest. But at the same time, spotted knapweed fundamentally fits the pest bill for disagreeing with grazing sheep, dominating space, endangering neighboring plants through catechin-allelopathy grabbing water through a super-effective tap root, out-competing native bunchgrass, producing many seeds, and outwitting biological controls.


What yellow spotted lizards are poisonous?

Nope! Contrary to popular belief, sparked by the book "Holes" they are not poisonous! there are only two known poisonous lizards: the gila monster and the mexican beaded lizard. though yellow spotted lizards ARE real, they are no more threatening to humans as any other lizard.


What is the scientific name or taxonomic classification of the plant Spotted knapweed?

The scientific or taxonomic name would be Centaurea maculosa.


Is knapweed safe for horses?

No. It is a very dangerous and poisonous plant for horses that can give a horse colic or even result in death.


Are 8 spotted ladybirds poisonous?

no


Are pigs poisonous to humans?

No, pigs are not poisonous to humans.


Are bracken ferns poisonous to humans?

Bracken ferns are not poisonous to humans but they are poisonous to animals.


What animals are poisonous to humans but not to Meerkats?

Snakes are poisonous to humans but not to Meerkats.


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only some fish are poisonous to humans


Is cedar poisonous to humans or animals?

Cedar is not poisonous to humans or animals.


Is pure water poisonous to humans?

No, pure water is not poisonous to humans.