Jointed Goatgrass
external image Jointed_goatgrass--Aegilops_cylindrica--m.s.jpgexternal image 10b.jpg



Scientific Name: Aegilops cylindrica
Common Name(s): Jointed Goatgrass, Jointgrass
Origin: introduced from Russia into Kansas from contaminated winter wheat seed in the 1880s.
Identification:
-difficult to tell the difference between jointed goatgrass and wheat in the early stages of growth
-has hairs that grow from the margin of the leaf blade
-once dug up, it will have a spikelet attached to the root
-the spike is a narrow cylinder which spikelets that contain 2-4 flowers
-each spikelet should have about 2 seeds
Characteristics:
-genetically similar to winter wheat and other cereal crops
-difficult to manage without causing damage to crop production
-unknown to BC currently, but has been found in places where rainfall ranges from 60-125 cm annually
-germinates early August-October
-can also germinate in late spring if temperatures are low enough
-one jointgrass can produce 100 spikes, 1500 joints and 3000 seeds
Habitat: Plant is currently not found in BC. However, it is found in the western US and may soon spread up to BC.
Control/ eradication recommendations:
-burning after harvest has taken place. Though it is not environmentally friendly, it can reduce up to 90% of the seeds to re-germinate next season
-biological control of this pest has been tested in the laboratory and seemed promising, but in fact did not work in the actual field
-applying atrazine and glyphosate in late August has proven to be successful in the control of jointed goatgrass
References:
http://www.weedsbc.ca/resources.html
http://www.ianrpubs.unl.edu/epublic/pages/publicationD.jsp?publicationId=87