Q. My Meyer lemon tree this year has hundreds of buds and flowers. Many on same branch or twig. Should I remove some of them, so I have fewer but larger lemons?
A. No thinning of the flowers. The first thinning is done when fruit is about the size of your thumbnail. The second fruit removal is done about four weeks. Aim for about 30 to 40% fruit removal for mature citrus. In about 4 to 8 weeks, you should know where the leaves will be. That’s important for removing sun burned fruit.
Remove misshaped, deformed, damaged, doubles or the smallest fruit during the first wave of thinning. On the second wave remove possible sunburned fruit and leave fruit that is or will be. shaded by some leaves. Fruit sunburning on exposed sides (usually west and south sides) and the tips is common in the desert. There is usually no sunburning on the east and north sides. There is a maximum size (determined by genetics) the fruit will reach but it is possible to maximize size in a higher percentage of fruit.
Pinch the fruit between two fingers and gently twist it off. Pay close attention to the bottom of trees as a higher percentage of small fruit is located there. Young trees have fewer leaves to photosynthesize and will be better off in the long-term if they’re allowed to focus on their growth. You can leave a few fruit if you want a taste.