Desert O'Piñon
Omono
I suppose that's one of the advantages in the desert, offset by trying to mitigate the heat and dryness. Very few insect or fungal issues -- for the trees. Rarely, after the rainstorm we have once or twice a year, there will be mosquitoes, especially in the shady recesses where the evaporation isn't instantaneous. But most of our harmful insects/bugs are a problem for animal life. Scorpions, black widows, tarantulas, tarantula hawk wasp, yellow jackets, Africanized bees, venomous centipedes, brown recluse, stink bugs. But we also have plenty of beneficial insects, too. Mantids, ladybugs, assassin bugs, and dozens of pollinators, just for starters.Here comes the insects.
Mosquitoes and spider mites are worst.