These pests are not just a nuisance; they can be carriers of diseases, including the infamous Dutch elm disease which has ...
Dutch elm disease has claimed the life of a 100-year-old elm tree in the Waikato, despite the tree being vaccinated. The fatal and fast-spreading disease is caused by a species of fungus and ...
Elm zigzag sawflies ... a single year and the new generations tend to continue attacks on the same tree. These insects’s ...