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Prescribed fire effects on biological control of leafy spurge
Author
Fellows, D. P.
Newton, W. E.
Publisher
Society for Range Management
Publication Year
1999-09-01
Body

The flea beetle, Aphthona nigriscutis Foudras, is a potentially useful agent for biological control of leafy spurge (Euphorbia esula L.) in grasslands devoted to wildlife conservation. However, effects of other grassland management practices on the persistence and dynamics of flea beetle populations are not well understood. We conducted small plot tests to evaluate 1) the effect of prerelease burning on establishment of A. nigriscutis colonies, and 2) the ability of established A. nigriscutis colonies to survive prescribed fire. More colonies established on plots that were burned prior to beetle release (83% establishment) than on unburned plots (37% establishment), possibly due to litter reduction and baring of the soil surface. However, most colonies established with the aid of fire did not survive past the first generation unless the habitat was otherwise suitable for the species, and we conclude that the primary benefit of prerelease burning is increased recruitment of A. nigriscutis during the first few generations. Established colonies were not harmed by burns in October and May. Both spring and fall burns resulted in an increase in leafy spurge stem density during the first growing season, but stem density declined to the preburn level by the second growing season. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020

Language
en
Resource Type
Text
Document Type
Journal Issue/Article
Digital Object Identifier (DOI)
10.2307/4003776
Additional Information
Fellows, D. P., & Newton, W. E. (1999). Prescribed fire effects on biological control of leafy spurge. Journal of Range Management, 52(5), 489-493.
ISSN
0022-409X
OAI Identifier
oai:repository.arizona.edu:10150/643997
Journal Volume
52
Journal Number
5
Journal Pages
489-493
Collection
Rangeland Ecology & Management (REM)
Journal Name
Journal of Range Management
Keywords
colonization
Aphthona
Aphthona nigriscutis
population change
biological control agents
ground cover
Euphorbia esula
weed control
fires
fire effects
prescribed burning
forbs
plant density
plant litter
invasive species
grasses
plant height
North Dakota