Injections and soil amendments "can boost trees' resilience"

A range of available products can enhance trees' resistance to pest and disease attack, according to Dr Glynn Percival, who manages Bartlett Tree Experts' laboratory at the University of Reading.

by Gavin McEwan
Percival discussing biochar amendments to ash trees with chief plant health officer Nicola Spence on BBC's Countryfile last year
Percival discussing biochar amendments to ash trees with chief plant health officer Nicola Spence on BBC's Countryfile last year

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