This is mostly a myth. It's impossible to actually keep only the soil underneath one's home a consistent degree of wet. If you water the soil under your house, the water eventually gets sucked out by capillary action to all of the dry parts of your lawn (and your neighbors lawn).
It would only work if everyone watered EVERYWHERE, by a uniform amount.
Its primary vector is the asian citrus psyllid. But you're right, once the bacteria is present in the plant tissue it can be transmitted to other healty plants via diseased grafts.
I know. For simplicity, I was talking about the plants in the same generic sense that your gut microbiome is a part of you, and the dead tissues that form your hair and skin are also a part of you.
You still need to hack up the eg cereal plants so they can actually engage in that symbiotic relationship (or perhaps actually directly fix nitrogen all by themselves, without any outside help at all).
"The human remains aboard the lander won't be the first on the moon, as ashes of Gene Shoemaker, the founder of astrogeology, were buried on the moon in the late 1990s by the Lunar Prospector."
> In addition to the NASA science experiments on board the Peregrine lander are cremated human remains and DNA collected by two private companies, Celestis and Elysium Space.
> People hoping to memorialize their loved ones or colleagues pay the companies thousands to send a few grams of cremated ashes to the moon in metal capsules.
It would only work if everyone watered EVERYWHERE, by a uniform amount.