Are non-indigenous plants harmful to our environment?

Answer 1

I do not know a lot about this issue, but I have seen several nova type programs that have addressed this issue.

In those Nova programs they have said that thought some Non-indigeous plants have been successfully incorporated into a new area, that there are some problems they seen. You bring to the area bugs that may not have been there before, but are attracted to the new plants. These bugs in some instances are harmful to the plants that are indigenous. Some plants as well when you bring them into an area, may over take the indigenous plants, which will also cause problems. Some plants when brought in also bring to an area plant diseases which the indigenous plants can't fight off and you can end up destroying indigenus plants. The more horticulturists learn about plants, the more they can transplant species from one area to another, without causing harm to indigenous plants.

One example of bringing in a plant that has caused a lot of problems, is crab grass. It was not indigenous to utah, was brought in and now it grows wild everywhere and in some places in Utah is hard to control. It over takes many of the natural growing grasses.

Answer 2

kudzu is a huge problem in many areas...as are cat tails. Some of these non-indigenous plants bring non-indigenous insects that feed on them along for the ride. These insects then infect other plants. I dont think non-indigenous plants are harmful to our environment, just harmful to environments other than their own.....

Answer 3

A lot of invasive plants are in fact non-indigenous. And they do have a way of crowding out a lot of the native plants because the usual controls are not there. Kudzu and water hyacinths come to mind.

Answer 4

As a general rule of thumb, ANY non-indigenous life...plant or animal...is always bad for the place it's introduced.

Answer 5

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Answer 6

often yes, example: seattle area is overrun with blackberries, they've become overgrown and take over indigenous plants.

Answer 7

yes they are very harmful to the environment

Answer 8

YES, THEY ARE VERY HARMFUL.