Q.Trees Not Bearing Fruit
Hello, I have a guava tree and an apple tree. Both have been stable, show leaves but no fruit. We’ve had insects in the past on our citrus trees nearby which went away by themselves. Could it be insects or something else? They were planted about 5 years ago.

Certified GKH Gardening Expert
There are several possible reasons. These articles should help. Also check your growing conditions against their ideal culture.
https://www.gardeningknowhow.com/edible/fruits/guava/guava-tree-wont-fruit.htm
https://www.gardeningknowhow.com/edible/fruits/apples/no-fruit-on-apple-trees.htm