Some are designed to reduce the need for pesticides, but many are made by the pesticide companies to be more tolerant to the sprayings. This results in less in

Some are designed to reduce the need for pesticides, but many are made by the pesticide companies to be more tolerant to the sprayings. This results in less insect/fungal damage and weeding (though the weeds seem to be able to keep up even without the GMO help).