Blackberry control manual - Weeds Australia
Blackberry control manual - Weeds Australia
Blackberry control manual - Weeds Australia
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Picloram<br />
MOA Group I, e.g. Tordon® granules, Vigilant® gel<br />
How it works Advantages Disadvantages Comments<br />
Selective, systemic<br />
herbicide absorbed<br />
through the foliage<br />
or roots.<br />
••Gives residual activity.<br />
••Formulated in pellets or<br />
gel; this may be desirable<br />
in some locations and<br />
can extend the time of<br />
application.<br />
••Will not kill grasses.<br />
••Low toxicity to mammals.<br />
••Moderately toxic to fish.<br />
••Harmful to many desirable<br />
trees and shrubs where<br />
the roots from these plants<br />
extend into areas that are<br />
treated.<br />
••Mobile in the soil and may<br />
leach or move from the site<br />
of application.<br />
••Recommended where<br />
pelleted formulation is<br />
considered the most<br />
appropriate application<br />
technique.<br />
••It is persistent in the soil<br />
giving an extended period<br />
of uptake by the blackberry.<br />
Half life of 90 days (range<br />
20 – 300 days).<br />
Hexazinone<br />
MOA Group C, e.g. Hexazinone 250 SL®, Velpar® L<br />
Residual herbicide<br />
absorbed by the<br />
foliage and the roots.<br />
••Low toxicity to mammals<br />
and fish.<br />
••Mobile in the soil and may<br />
leach or move from the site<br />
of application.<br />
••Can cause severe damage<br />
or kill many desirable trees<br />
and vegetation.<br />
••Persistent in water (half life<br />
> 56 days).<br />
••Slightly toxic to fish and<br />
aquatic organisms.<br />
••Use only in pine plantations<br />
and around industrial<br />
buildings.<br />
* Can be applied using foliar<br />
spray, spot application or<br />
stem injection.<br />
* For residual <strong>control</strong> from<br />
spot application sufficient<br />
rainfall is required after<br />
treatment to promote root<br />
absorption.<br />
* Do not apply on or near<br />
desirable trees or where<br />
there could be a surface<br />
flow of water.<br />
Amitrole + ammonium thiocyanate (This mixture is always sold as this drum mix.)<br />
MOA Group Q, e.g. Amitrole T®, Weedeath® or Oxalis Sour Sob Killer®<br />
Inhibits carotenoid<br />
biosynthesis.<br />
••Some naturally occurring<br />
resistant weed biotypes<br />
exist.<br />
••Non-selective, so may<br />
damage crops, pastures and<br />
some ornamentals.<br />
••Registered for use in<br />
and around non-crop<br />
areas, around buildings,<br />
commercial and industrial<br />
areas, gardens and public<br />
service areas and rights of<br />
way.<br />
* Requires two applications<br />
during the one growing<br />
season, and follow-up<br />
treatment in the next<br />
growing season.<br />
* Apply in December/January<br />
and respray in autumn.<br />
* Limited use for <strong>control</strong> in<br />
many situations.<br />
* Do not apply to bushes with<br />
mature or developing fruit.<br />
* denotes critical comment from the label<br />
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