We don't like spraying heavy duty chemicals on the soil or the vegetation because they kill the living things in on which we rely for productivity: microbes, insects, etc.
So we are always open to non-toxic alternatives. The chemicals for spraying on Bathurst burr (my greatest hate) are very toxic and dangerous for humans as well as bugs. So when we heard about sugar as a herbicide, we decided to attack the burr with it.
The amounts specified in the article we read are extreme: 1/2 kilo of sugar per square metre. Buying sugar at the supermarket could be prohibitive. We did it that way for our trial. Mixed up 4 kgs and sprayed a plot of burr 8 sq.m. in a spot that traditionally is our worst infestation.
I also sprayed some individual plants in our back 'lawn' to have something I could watch daily. So far so good. The victims near the back door have started to get a droop which usually follows when chemical is applied.
The food nazis told us white sugar was poison back in the 1980s and campaigned against it like all good lifestyle nazis should. Little did we suspect that they were right on the money.
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