Why Change our Minds about Birds we are Inclined to Hate

by Gillian Martin Did a person but know the value of an enemy, he would purchase him with pure gold    —Raunci Have you spent time looking for family members on genealogy websites? It’s great fun, isn’t it, to discover look-alikes and common traits among newly discovered relatives. There are birds likely around you every day that are related…but perhaps you were … Read More

Taking the ‘defect’​ out of tree risk-benefit management strategies

Photo by Joe Galkowski By Acer Ventura The word ‘Defect’ no longer appears in any of VALID’s Tree Risk-Benefit Management Strategies. Even though it was there in the qualified form of ‘Obvious Tree Defects’, the tree defect issue has been knocking at the door of reasonable, proportionate, and reasonably practicable tree risk-benefit management for a while now. The volume was … Read More

Pruning to Harm Trees: a mind-rocking topic by Johan Ostberg, Ph.D.

by Gillian Martin Johan Ostberg, Ph.D. ‘Pruning to Harm Trees’ seems like an alarming title for a training program for arborists, doesn’t it? But this was the title of a presentation by Johan Ostberg Ph.D, Professor at the Swedish Institute of Agricultural Science in the City of Malmö, Sweden. He recently stepped up to the podium at the Los Angeles/Orange … Read More