|
|
Gramoxone:
paraquat
| 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 |
Gramoxone
|
| Formulation |
Sn |
| Guaranteed active concentration |
200 g/L |
| Groups |
22 |
| Ontario Schedule |
2 |
| Winter
Storage |
A |
| Chemical Family |
Bipyridylium |
| Crop and/or Non-Crop Registrations |
Apples, apricots, cherries, currants, gooseberries,
grapes, highbush blueberries, peaches, pears and plums established
more than 1 year; blackberries, loganberries and red raspberries;
inter-row spraying in strawberries; stale seedbed technique for
vegetables and field crops; inter-row directed chemical weeding
for vegetable fields and established nursery crops; asparagus;
potatoes; established alfalfa and bird's-foot trefoil; pasture
renovation; zero tillage corn; conifer control. |
| Sensitive Weeds |
Non-selective - affects all green plants. |
| Uptake and Translocation |
Absorbed by foliage and green bark; little or no
translocation. |
| Basis of Selectivity |
All green plant tissue is sensitive. Less effective
on plants with a very waxy cuticle and linear leaf shape such
as nut sedge. Safe on mature (non-green) bark of woody plants. |
| Application Methods |
Postemergence. Broadcast, or directed spray to
avoid contacting leaves or bark of desirable plants. Apply when
weeds are less than 15 cm high. Better results are usually obtained
if application is made on a dull or cloudy day, or in the evening. |
| Residual Activity |
Essentially no residual activity in soil. Will
persist in organic material such as mulches or turf thatch; therefore,
do not reseed these areas for 5 days. More than one application
per season may be necessary, especially for perennial weeds. |
| Unique Characteristics |
Inactivated by adsorption to soil particles. Not
available to homowners. For a domestic registration, see paraquat/diquat. |
| Manufacturer / Registrant |
Syngenta
Crop Protection Canada Inc. |
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