By Jrc
Hertfordshire,
United Kingdom 
I have a small non fruiting almond tree in my south facing garden, every year it is covered in blossom that only a small percentage of opens, the rest of the blossom dies off before the leaves open.
2 May, 2010
Answers
Hello Bamboo, thanks for your reply I will have alook for the fungus tomorow.
Happy Gardening
JRC
2 May, 2010
Previous question
There's a condition called blossom wilt, which is caused by a fungal infection - inspect the blossom to see if you can find the typical pin pricked sized, raised buff coloured fungal pustules on damaged areas. If you think it is this, then my book recommends "copper oxychloride" spraying just before flowering, and pruning out and disposing of any affected trusses of blossom as soon as possible, also inspecting the foliage and fruiting spur for signs of infection.
2 May, 2010