| Impact ID |
Scientific Name
|
Impact Type
|
Study Type
|
Study Location
|
Impact Description
|
Geographic Location
|
Reference
|
|
8840
|
Persicaria maculosa
|
Commerce
|
Anecdotal
|
N/A
|
The economic impact of Polygonum persicaria (spotted ladysthumb) in agricultural production is sufficient for various governments to declare this weed as a noxious pest.
|
|
42538
|
|
8841
|
Persicaria maculosa
|
Commerce
|
Anecdotal
|
N/A
|
The state of Minnesota in the USA has declared Polygonum persicaria (spotted ladysthumb) as a secondary noxious weed, and several states have categorized it as invasive.
|
Minnesota, USA
|
42538
|
|
8842
|
Persicaria maculosa
|
Commerce
|
Anecdotal
|
N/A
|
Polygonum persicaria (spotted ladysthumb) can be very competitive with crop plants, particularly in moist soils, and as such, can have significant economic impacts in the requirements for the use of increased tillage and herbicides. However, exact data on costs due to the presence of this species are not known. It is a weed of 35 crops in 50 countries.
|
|
28572
|