Q.What’s causing these on baby Sapote plant?
This Sapote was grown from seed, it’s been pretty healthy until two weeks ago, I started noticing the tips of some leaves are turning brown, and curling on the edges, there are also white spots on them. Are these caused by under watering, fungus or pests?

Certified GKH Gardening Expert
This is a fungal infection. This will, actually, be caused by overwatering, and over-compacted soil with poor drainage. The next time that you water, I recommend replacing 1/4 of the water with peroxide. This will help kill off the infection.
Make sure to only water when the top of the soil is almost completely dry down to about 2 inches. This will prevent infection in the future.
This article will help with the care of these: https://www.google.com/url?q=https://www.gardeningknowhow.com/edible/fruits/sapodilla-trees/growing-sapodilla-fruit.htm&sa=U&ved=0ahUKEwjkvdHh-8TcAhUjhuAKHaixB1wQFggFMAA&client=internal-uds-cse&cx=009296322515861343460:jftykenwinc&usg=AOvVaw3jiXmf0I4eNQHPjVUca4W_