Mānuka – a natural weedkiller?

Mānuka is the Māori name for shrubs or small tree of the species Leptospermum Scoparium in New Zealand. 

Kiwi students and scientists are investigating grandifloronein our native Leptospermum Scoparium.  They want to find out if grandiflorone levels differ in  mānuka  trees growing in various parts of the country and if the levels are potent enough to act ad a natural weedkiller. 

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