Growing and spreading rapidly in even the poorest soils and with little water, tree of heaven is, despite its name, the very ...

Is this tree that we have known for years as an “accident waiting to happen” really worth the repeated pruning expense? Not to mention that ornamental pears have now become an invasive weed ...

[Benjamin Sakwa, Standard] The government has started research to find a scientific method to eradicate a yellow parasitic weed killing trees and crops in parts of western Kenya and Rift Valley.