Q.My Meyer Lemon tree has lines in the leaves as if it has leaf miners. What should I do?
Also, it had 3 worms that look like bird poop on it as well. I have 14 lemons maturing and new blossoms as well. Please tell me what is going on.

Certified GKH Gardening Expert
Here is a link to leaf miner control.
https://www.gardeningknowhow.com/plant-problems/pests/insects/leaf-miner-control.htm.
The caterpillars that resemble bird poop are likely the larvae of Giant swallowtail butterflies. If your trees can tolerate them, they'll produce beautiful winged creatures, but they do like feeding on citrus leaves. They won't kill your trees just defoliate a little.