If you’re shopping for new plants and you’d like them to stay as healthy as possible, consider the following:
Learn which trees, shrubs, vegetables, perennials, annuals and herbs are experiencing pest problems in your area. Which pests or diseases are the culprits?
Do a little research before you go shopping. You won’t find disease- and insect-resistance mentioned on most plant labels. Consult trusted sources – extension agents, books, online resources – to find the most resistant cultivars in a particular species.
Consult local extension specialists and trusted nurserymen. A plant that’s pest-prone in one part of the country may be resistant in another, and vice versa.
If you can’t find resistant cultivars, consider another species. There are dozens of trees and shrubs that can thrive in a tough environment.
Remember that if a plant is stressed for any reason – incompatible soil or light conditions, too much or too little water, etc. – it’s going to be vulnerable to attack.