Skip to main content
ARS Home » Pacific West Area » Burns, Oregon » Range and Meadow Forage Management Research » Research » Publications at this Location » Publication #359118
Title: Incorporating seeds in activated carbon pellets to prevent pre-emergent herbicide damage to seeded vegetation in annual grass control projects

Author
item Davies, Kirk
item JOHNSON, DUSTIN - Oregon State University
item CLENET, DANIELLE - Oregon State University

Submitted to: Bureau of Land Management
Publication Type: Government Publication
Publication Acceptance Date: 10/18/2018
Publication Date: 10/29/2018
Citation: Davies, K.W., Johnson, D., Clenet, D. 2018. Incorporating seeds in activated carbon pellets to prevent pre-emergent hervicide damage to seeded vegetation in annual grass control projects. Bureau of Land Management. p. 1-2.

Interpretive Summary: Revegetation of exotic annual grass-invaded rangeland with pre-emergent herbicides is challenging because seeding is delayed until herbicide toxicity has diminished, but at this time, exotic annuals can be re-invading. Incorporating seeds into activated carbon pellets may protect seedlings from pre-emergent herbicide damage because activated carbon can neutralize the herbicides around the seedling. We evaluated using activated carbon pellets with a native grass and shrub seeded at the same time indaziflam was applied at four rates in a grow room study and with four bunchgrasses and two shrubs at the same time imazapic was applied in a field study. Activated carbon pellets protected seeded species from indaziflam and imazapic. These results suggest that activated carbon pellets can be used to seed native grasses and shrubs simultaneously with indaziflam or imazapic application.

Technical Abstract: Revegetation of exotic annual grass-invaded rangeland with pre-emergent herbicides is challenging because seeding is delayed until herbicide toxicity has diminished, but at this time, exotic annuals can be re-invading. Incorporating seeds into activated carbon pellets may protect seedlings from pre-emergent herbicide damage because activated carbon can neutralize the herbicides around the seedling. We evaluated using activated carbon pellets with a native grass and shrub seeded at the same time indaziflam was applied at four rates in a grow room study and with four bunchgrasses and two shrubs at the same time imazapic was applied in a field study. Activated carbon pellets protected seeded species from indaziflam and imazapic. These results suggest that activated carbon pellets can be used to seed native grasses and shrubs simultaneously with indaziflam or imazapic application.