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I have a couple of questions. When its dry and we have lack of rain typically the lawn goes brown. Why is it that crabb grass stays green? Is there no way grass seed manufacturers/suppliers can isolate the gene or property in crabb grass and put it into standard grass so it will also stay green in drought times? Second, I have two dogs and the dogs urine will pretty well kill the standard lawn grass, however when they urinate on crabb grass it does not die or even turn brown, can they also put that gene/property in the standard lawn grass?

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I don't believe genes work that way. Also, my understanding is that crab grass has deeper roots which are able to reach water deeper down in the soil which is why they remain green longer than your grass. – shufler Aug 13 '12 at 15:29
This kind of thing isn't really on topic here. While questions about how to keep your grass green or keep dog urine from browning grass are both on topic, a theoretical question about "can scientists import gene a into plant b" isn't really on topic here. – wax eagle♦ Aug 13 '12 at 15:39

closed as off topic by Niall C.♦, bstpierre, wax eagle♦ Aug 13 '12 at 15:38

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