Conyza bonariensis pdf file download

This plant can be weedy or invasive according to the authoritative sources noted below. Resprouting of conyza bonariensis after the removal of aboveground part. Erigeron bonariensis is a species of erigeron, found throughout the tropics and subtropics as a pioneer plant. Similar species the several onyza species in portugal are very similar and hard to distinguish. Plant guide canadian horseweed conyza canadensis l.

All parts of the plant are finely pubescent and greyish in colour. Erigeron bonariensis in the germplasm resources information network grin, u. Leaves linear to oblanceolate, mostly about 5 mm wide, entire, but often wavyedged, with very short or hooked hairs less than 0. Conyza bonariensis with differential tolerance to glyphosate occurs in both the winter and summer rainfall regions. It is therefore important that mitigation measures be put in place, and existing ones. The presence of resistant biotypes poses a serious problem in annual and perennial cropping systems. Usda nrcs idaho and washington plant materials programs. It has become naturalized in many other regions, including north america, europe and australia. In addition, michael 1977 points out that the name c. This plant may be known by one or more common names in different places, and some are listed above. Conyza floribunda kunth is considered a separate species, though confusion between it and both c.

Download fulltext pdf download fulltext pdf biology and management of horseweed conyza canadensis and hairy fleabane conyza bonariensis in california. Plant guide for canadian horseweed conyza canadensis. Role of absorption and translocation in the mechanism of. Provided by usda nrcs wetland science institute wsi. Plants profile for conyza canadensis canadian horseweed. Role of absorption and translocation in the mechanism of glyphosate resistance in horseweed conyza canadensis volume 53 issue 1 clifford h.