"Being an island is a biosecurity advantage. We have plant passports and other measures but they are far from being watertight. The tree health budget must be substantial. We're urged to build, build, build for growth but we must have the wisdom and foresight to plant, plant, plant and to care for those trees."
Framlingham, who as Michael Lord was a previous Arboricultural Association president and a registered arboricultural consultant, warned of repeating past mistakes, saying "not enough credence was given to experts' concerns" when Dutch elm disease first took hold in the 1970s.
Session chair Dr Mark Johnston said: "It's good that we have a friend in Parliament - long may he continue to promote the value of trees there." Bookings at the three-day event, held at the University of Warwick campus, were up 40 per cent on last year at around 420 delegates.