|
|
Bonanza,
Rival, Treflan: trifluralin
| Author: |
OMAFRA Staff
|
| Creation Date: |
25 November
2002
|
| Last Reviewed: |
21 January
2008
|
Excerpt from Chapter 4, Publication 75, Guide to Weed Control, Order
this publication
| Chemical Family |
Dinitroaniline
|
| Group |
3 |
| Ontario Schedule |
3 |
| Crop and/or Non-Crop
Registrations |
Soybeans, black, kidney, lima, nap and white beans,
faba beans, snap beans, lima beans, black beans, canola (rapeseed),
sunflowers, turnips, peas (field and canning), direct-seeded alfalfa;
transplants of tomatoes, peppers, Brussels sprouts, broccoli,
cabbage and cauliflower; carrots, crambe, direct-seeded cabbage
and cauliflower, annual flowers, woody ornamental plantings and
field-grown nursery stock, perennials, established shelterbelts,
strawberries. |
| Sensitive Weeds |
Effective on most annual grasses, and will provide
good control of pigweed
and lamb's-quarters,
including the triazine-tolerant biotypes of these weeds. |
| Uptake and Translocation |
No significant absorption or translocation of trifluralin
in crops grown in soil treated with trifluralin. Susceptible weeds
are controlled as they germinate. Established weeds are not controlled. |
| Basis of Selectivity |
Physiological growth processes associated with
seed germination. |
| Application Methods |
Preplant incorporated. Apply in 100-300 L of water/ha.
Use lower rate of the chemical on sandy soils and increased rate
for loam-to-clay soils. Do not use on highly organic soils (muck,
peat or black sands above 15% organic matter). Incorporate twice
in cross directions using a tandem disc (7-10 km/hr) or tine cultivator
(10-13 km/hr) set to work 8-10 cm deep. The first incorporation
should be done as soon as possible after application, but may
be delayed 8-24 hours, depending on label directions. The second
incorporation is recommended anytime before planting. Activated
upon incorporation; rainfall is not required. |
| Residual Activity |
Recommended application rates provide season-long
weed control. Succeeding crops, even fall-seeded grain crops planted
in soil that received trifluralin the preceding spring, will not
be injured under normal conditions. |
| Unique Characteristics |
Strongly adsorbed to soil particles and shows negligible
leaching. Organic matter and clay content influence application
rate. Does not control ragweed,
annual nightshades or mustards;
lady's-thumb
may escape. |
| Top of Page |
Related Links
| Top of Page |
For more information:
Toll Free: 1-877-424-1300
Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca
|
This site is maintained
by the Government of Ontario 
Queen's Printer for Ontario
