Effects of triclopyr amine on purle loosestrife and non-target wetland plants in south-eastern Ontario, Canada / T. Shane Gabor, T. Haagsma, H.R. Murkin, and E. Armson.
Material type:
TextSeries: Journal of Aquatic Plant Management. 33(2) 48-51 Publication details: 1995.Description: illustrations ; 28 cmLOC classification: - GAB
| Item type | Current library | Collection | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|---|
Electronic Journal
|
IWWR Supported Research | Non-fiction | GAB (Browse shelf(Opens below)) | Available | 16826 |
Browsing IWWR Supported Research shelves Close shelf browser (Hides shelf browser)
Includes bibliographical references (page 51).
We studied the effects of triclopyr amine, the triethylamine
salt formulation of triclopyr [[(3,4,6-trichloro-2-
pyridinyl)oxy] acetic acid] on purple loosestrife (
Lythrum
salicaria
L.) and non-target vegetation in a southern Ontario
wetland during 1991 and 1992. Triclopyr was applied during
bud to early bloom stage at rates of 4.0, 8.0 and 12.0 kg/ha.
During 1991, all treatment levels effectively controlled the
aboveground portion of purple loosestrife. Grasses (family
Gramineae) were unaffected during 1991, however, sedge
species (
Carex
spp.) declined in numbers at higher treatment
levels. At 1 year post-treatment, adult purple loosestrife were
not present in the 12.0 kg/ha treatment indicating that triclopyr
effectively killed the root system. Seedlings dominated
the total number of loosestrife plants in the 8.0 and 12.0 kg/
ha treatment plots 1 year post-treatment. Sedges recovered
in 1992 and grasses increased above 1991 levels. Removal of
adult purple loosestrife allowed more light to reach the substrate
surface and created favourable conditions for seed germination
and plant growth. Triclopyr amine can effectively
reduce adult loosestrife stem densities, however, additional
herbicide applications may be required to prevent re-establishment
through regeneration from the seed bank.