How does pest-resistant and herb-resistant tomato might survive in the environments with neither herbicides nor pesticides? Especially if the primary goal for m

How does pest-resistant and herb-resistant tomato might survive in the environments with neither herbicides nor pesticides? Especially if the primary goal for modifying the gene was to make the tomato just yummier. You are talking reasonable things but I'm talking from the position of farmer who knows how easy is to break a useful plant and how hard is to destroy any useless one with decentralized root system and easy-peasy flower which can produce thousands of seeds per one stick in few weeks and nothing more. You are writing correct things but the experience which is in my hands tells me that you are not right about properties of invasive specie vs properties of typical crop.