Daconate Vs Glyphosate Trial (April-May 2015)
The aim of the trial was to compare the differences between using the herbicides Glyphosate and Daconate for injection of Wheel Cactus plants.
The trial was carried out on property on Back Cairn Curran Road which had a dense infestation with various sized plants.
Several duplicate plots were chosen which were easily accessible, near each other and had similar sized and/or number of plants.
Group M herbicide
Used diluted 1:3 in water
- Injected 4ml into all lobes of each plant
Class Z herbicide
Can only be purchased and used with ACUP
Land must be clear of stock for 5 weeks
Cannot be used within 50 metres of water body
- Drilled stem of the plant and then injected stem only with 4ml
The variables tested were:
Time taken to inject plant
Number of injections required
Volume of herbicide used
Cost of herbicide used
Number of days to death
Need for follow-up injection
The results indicated that:
Each injection with Daconate took approx. 3 x longer because a hole was drilled first, but each plant needed approx. 6 x more injections with Glyphosate, hence overall a plant took approx. 2 x longer to inject with Glyphosate
The cost of Daconate is approx. 2.5 x more than the cost of Glyphosate but each plant used approx. 2 x more volume of Glyphosate, therefore the actual cost of both was very similar.
The time taken for a plant to die was approx. 3 x longer using Glyphosate and was much more likely to need follow-up injections than when using Daconate.
Summary: TCCG Glyphosate Vs Daconate Trial (April 2015)
Approx. Time per injection
No. Injections per plant
Av. Time per plant
Cost of Chemical
Volume per plant
Approx. Cost per plant
Time taken to kill plant
~ 54+ days
~ 20 days
Need to re-inject
Residue of Chemical
Yes (6 weeks)