Ecology and Management of Canada Thistle Author:USDA This booklet contains complete info on this invasive species and is described in full with information on its biology and identification , life cycle and growth , damage it causes , management alternatives with cultural control , mowing , burning , hand pulling , grazing and biological control . This also lists the insects used for biological co... more »ntrol with scientific and common names. Includes color photos and a map of Montana showing each county it is found in . This information can be used for any state .« less