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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

NEW! Practitioner’s Guide for Effective Non-Restricted Herbicide Techniques to Control and Suppress Invasive Woody Species in Hawai‘i

Includes information on controlling:
Acacia confusa, Formosan koa
Acacia mearnsii, Black wattle
Ardesia elliptica, Shoe button ardesia  
Bambusa spp., Bamboo
Casuarina equisetifolia, Ironwood
Cinnamomum burmannii, Padang cassia     
Coffea spp., Coffee
Eucalyptus spp., Eucalyptus
Falcataria moluccana, Albizia
Fraxinus uhdei, Tropical ash
Grevillea robusta, Silky oak

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)

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

Woody plant control for the home, pasture, and forest