This model eliminates the need for pesticides because such 'ecosystems' create natural and hardy defenses. By inviting all manner of insects and an appropriate selection of native plant species, Mother Nature creates an elegant and effective system of checks and balances, more than sufficient to guard against infestation and disease. Gardening authors such as Allen Lacy, Michael Pollan and Toronto's Lorraine Johnson are excellent resources for one looking to return a lawn to a more natural, healthy state. As Johnson says, the key is using 'native plants', those species that were most prevalent before European Settlement. She also points to a common misconception.
People tend to think that native gardens are wild looking or messy or out of control.
She says this does not have to be the case.