oranges were sweet now sour
We have an orange tree that has been producing wonderful oranges until two years ago. In 2009 the oranges were not sweet. In 2010 there were no oranges at all and now in 2011 we have lots of oranges but they are on the sour side. What is going on?
Also we bought a cocktail tree with meyer lemons, persian limes and key limes. It had fruit when we bought it and the first year we had a few fruit. This year NONE!
Just as a side the kumquat tree in the same area is thriving and producing great fruit.