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Senecio madagascarensis, fireweed, a problem weed for Hawaii's pastures.

Fireweed plagues Hawaii's pastures. It is poisonous to many grazing animals.

Photos: Forest and Kim Starr

Weed Control Information for Ranchers

CTAHR Publications

Fireweed Control: An Adaptive Management Approach

Control of Madagascar ragwort (Madagascar fireweed, Senecio madagascariensis)

Herbicidal weed control methods for pastures and natural areas of Hawaii

Rights-of-way weed control--A guide for commercial pesticide applicators

Summaries of herbicide trials for pasture, range, and non-cropland weed control (1998)

Summaries of herbicide trials for pasture, range, and non-cropland weed control (1999)

Summaries of herbicide trials for pasture, range, and non-cropland weed control (2000)

Summaries of herbicide trials for pasture, range, and non-cropland weed control (2001)

Woody plant control for the home, pasture, and forest

Weeds of Hawaii’s Pastures and Natural Areas; An Identification and Management Guide