|
|
Laddok:
bentazon/atrazine
| 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
| Trade Names |
Laddok |
| Formulation |
Su |
| Guaranteed active concentration |
(1:1) 400 g/L |
| Groups |
5,6 |
| Ontario Schedule |
2 |
| Winter
Storage |
A |
| Chemical
Family |
Benzothiadiazine/s-triazine |
| Crop
and/or Non-Crop Registrations |
Corn (ensilage, field, seed and sweet). |
| Sensitive
Weeds |
Annual broadleaf weeds such as black
nightshade, redroot
pigweed, lamb's-quarters,
low cudweed,
purslane,
common
ragweed, Russian
thistle, corn
spurry, flower-of-an-hour,
lady's-thumb,
wild
mustard, hairy
galinsoga, bird
rape, buttercup,
common chickweed,
common
groundsel, jimsonweed,
giant
ragweed, velvetleaf
and cocklebur.
Triazine-tolerant biotypes are also controlled. Top growth of
Canada
thistle and nut
sedge are controlled. Field
bindweed may be suppressed. |
| Uptake
and Translocation |
Uptake into the plant occurs primarily through
the leaves. Bentazon/atrazine has mainly contact action and translocation
is minimal. |
| Basis
of Selectivity |
Metabolism by tolerant species |
|
Application Methods |
Apply bentazon/atrazine early postemergence when
weeds are small and actively growing. Apply in 200-400 L water/ha.
Apply before weeds reach the maximum size listed on the label.
This generally corresponds to corn in the 1 to 5-leaf stage. Under
good growing conditions, the most effective time for spraying
will usually be 18-28 days after planting. Add Assist
Oil Concentrate to the spray tank for all applications. Thorough
spray coverage is important and use flat fan nozzles. The use
of flooding nozzles is not recommended because of inadequate coverage. |
| Residual
Activity |
Injury may occur to any crop other than corn planted
in the same season on land treated with bentazon/atrazine. In
the season after application, there is virtually no hazard to
most rotational crops when label rates for annual weed control
have been used. Overlap or the use of a double application for
nut sedge control may result in injury to rotational crops due
to carry over of the atrazine component of bentazon/atrazine.
|
| Unique
Characteristics |
Corn is tolerant at all stages of growth. Rainfall
within 6-8 hours of application may reduce effectiveness of the
spray solution. Bentazon/atrazine is not volatile but it should
not be applied when crop is under stress from prolonged cold,
wet weather, poor fertility or other factors. |
| Manufacturer
/ Registrant |
BASF
Canada Inc. |
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