Matt Hommel, the managing director of Christie-Elite at Forres in Moray, said he is about to burn 1.5m trees or 30 per cent of his stock and estimates up to 8m trees across Britain could be destroyed.
HTA figures show tree planting will collapse to 1,600ha in 2016. The HTA warned last month this could lead to young trees being destroyed.
HTA horticulture head Raoul Curtis-Machin said: "In Scotland where this has been most drastic in terms of a lack of planting nurseires like Christies-Elite are struggling. Eight or nine million trees are being destroyed and the number being planted might be fewer so Britain could actually be in a state of deforestation."