Who is
Liyusina? Those who read my post on “A Story of A Bad Tree” might think that I
was just creating a story for kids. Well, yes! That’s the idea.
But the
truth is Liyusina does exist in our real life. Leucaena leucocephala is known
as Petai Belalang in Malaysia. I could easily see the tree along the roadside
at Sungai Buloh and on my way to Putrajaya. While searching some information of
this tree species, I’ve found out that the young pods are edible and there’s
also a recipe of Sambal Petai Belalang over the internet!
I was attending an international seminar on “Reclamation,
Rehabilitation and Restoration Towards Greener Asia” in July 2012. During the
seminar, two presenters from Taiwan raised the issue of Leucaena
leucocephala which has been highly invasive in certain part of Taiwan.
What happened at the West Coast of HengChung, Southern
Taiwan?
1) Forest have been seriously invaded by Leucaena
leucocephala which is listed in the world’s 100 worst invasive species.
2) Leucaena leucocephala is almost a
mono-species plant and could be dominated stands replacing the native-species.
3) All Leucaena leucocephala trees were cut and removed in removal strips
of 6m or 12m, but about 20 new sprouts occurred around the stump in a week.
4) The best way to kill the tree is by drilling a small hole
in the trunk and injecting glyphosate herbicide.