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Weed Control

Please Note: The CTAHR publications database reflects over a century of study by researchers and extension agents in the College. Much of the information contained in earlier publications is still of practical and technical use, and the documents are an unparalleled resource for Hawai'i agricultural and horticultural history. However, some publications also make recommendations that are no longer in accordance with more recent advances in understanding. For instance, they may specify pesticides or methods of using them that are no longer allowable under current State or federal regulations. Before using any pesticide, always read its label for approved uses, and follow label directions for application. Other publications may advocate the use of particular plant species that are now considered invasive. The Invasive Species Council is continually making assessments on this matter; see their Web site at http://www.hawaiiinvasivespecies.org for the latest recommendations on identification and control of these species.

A Practitioner’s Guide for Testing Herbicide Efficacy With the Incision Point Application (IPA) Technique on Invasive Woody Plant Species  [WC-11]  [2013]  PDF    
Basic Calibrations of Basal Bark Applications With Ester-Based Triclopyr in Oil Carrier  [WC-12]  [2015]  PDF    
Before you buy or apply an herbicide . . .  [WC-3]  [1999]  PDF    
Chain saw operation and maintenance  [RES-092]  [1988]  PDF    
Control of Madagascar ragwort (aka Madagascar fireweed, Senecio madagascariensis)  [WC-2]  [1999]  PDF    
Herbicidal weed control methods for pastures and natural areas of Hawaii  [WC-8]  [2002]  PDF    
Practitioner's guide for effective non-restricted herbicide techniques to control and suppress invasive woody species in Hawaii  [WC-10]  [2012]  PDF    
Proper Technique for Injecting Albizia (Falcataria moluccana L.) With the Herbicide Milestone (Active Ingredient: Aminopyralid) (rev. 2017)  [Albizia%20tri-fold]  [2014]  PDF    
Rights-of-way weed control -- a guide for commercial pesticide applicators    [2002]  PDF     For sale
Soil Solarization as an Organic Pre-Emergent Weed-Management Technique  [SA-14]  [2014]  PDF    
Summaries of herbicide trials for pasture, range, and non-cropland weed control, 1998  [WC-1]  [1999]  PDF    
Summaries of herbicide trials for pasture, range, and non-cropland weed control, 1999  [WC-5]  [2000]  PDF    
Summaries of herbicide trials for pasture, range, and non-cropland weed control, 2000  [WC-6]  [2001]  PDF    
Summaries of herbicide trials for pasture, range, and non-cropland weed control, 2001  [WC-7]  [2002]  PDF    
Summaries of herbicide trials for pasture, range, and non-cropland weed control--2002  [WC-9]  [2003]  PDF    
Weeds of Hawaii's pastures and natural areas -- an identification and management guide    [2003]  PDF     For sale
Woody plant control for the home, pasture, and forest  [WC-4]  [1999]  PDF