Q.Early fruit drop of limes in tropics
Now dry season is here and my limes are yellowing and dropping while about 1/2 to 2/3 normal size. Watering and feeding regularly and removing any fruit affected by fruit fly. When cut inside, seeds appear brownish, but maybe this is normal. See photo. Any ideas on drop, please?
Certified GKH Gardening Expert
Even though you are watering regularly, the dry weather might still be taking a toll on the tree. It can be hard to get watering right during dry periods. Make sure it has good drainage too, and no excessive salt buildup in the soil (this could come from fertilizer if it isn't drained well, or from natural conditions where you live.) https://www.gardeningknowhow.com/edible/fruits/lime/is-lime-fruit-and-lime-blossoms-falling-off-tree-normal.htm
Also, make sure there are no thrips, mites or other pests on the tree, since these can cause fruit drop.
It doesn't sound like a disease, but see this article just in case: