Time of Greatest Risk


J	F	M	A	M	J	J	A	S	O	N	D

Geographical Distribution

Related Species

Showy Rattlebox

Crotalaria spectabilis

Kimberly Horse Poison, Sunhemp, Crotalaria Montana, Crotalaria Brevis, Bluebush Pea

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Showy rattlebox (Crotalaria spectabilis) is an erect, summer annual that is found worldwide, including throughout the South eastern United States.

Showy Rattlebox Toxic Components

Crotalaria species contain pyrrolizidine alkaloids (PAs) which can lead to liver failure when ingested over time.

Symptoms

Appetite Loss
Depression
Jaundice
Colic
Nervousness
Hyperexcitability
Walking In A Circle
Pushing Against Objects
General Weakness
Incoordination
Aimlessly Wandering
Diarrhea

CHEMICAL: There are a number of chemical control options for showy rattlebox. These include both preemergence and postemergence herbicides in pasture and/or hay, corn, and soybeans. In pasture and/or hay, diuron can used for preemergence control while dicamba, hexazinone, triclopyr, triclopyr mixes,

References

Milani, Luiz CR, et al Crotalaria spectabilis poisoning in a horse Braz J Vet Pathol 14.2. 2021.
Swearingen, J., C. Bargeron Invasive Plant Atlas of the United States University of Georgia Center for Invasive Species and Ecosystem Health. 2016.
Maddox, V, Mississippi State University Crotalaria spectabilis Roth Invasive Plant Atlas of the Mid South. 2015.
Early Detection & Distribution Mapping System Available online at http://www.eddmaps.org/; last accessed August 5, 2014. The University of Georgia - Center for Invasive Species and Ecosystem Health.. 2014.
Crotalaria medicaginea Associated with Horse Deaths in Northern Australia: New Pyrrolizidine Alkaloids J. Agric. Food Chem. 2011.
Petzinger E. [Pyrrolizidine alkaloids and seneciosis in farm animals. Part 1: occurrence, chemistry and toxicology]. Tierarztl Prax Ausg G Grosstiere Nutztiere. 2011.
Pearson EG. Liver failure attributable to pyrrolizidine alkaloid toxicosis and associated with inspiratory dyspnea in ponies: three cases (1982-1988). Journal of American Veterinary Medicine Association. 1991.
Emmel, M. W.; Sanders, D. A Crotalaria spectabilis and C. retusa poisoning of livestock. FDA Poisonous Plant Database. 1942.

Time of Greatest Risk

Geographical Distribution

Related Species

Showy Rattlebox

Crotalaria spectabilis

Showy Rattlebox Toxic Components

Symptoms

Control

References

CowDVM.com

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