Peanut Brittle House - A cottage made of peanut brittle with peanut plants growing outside.

Parnell continued working as a consultant to the business after the family sold it, and in 2000 he left to buy his own peanut plant again in Texas.

Ultimately, Mr. Goodrum, whose research costs $10,000 to $20,000 a year, wants to develop peanut plants that could be grown inexpensively.

He said he hopes to perform a similar demonstration once the new strain of peanut plant is developed.

Now, in the hot sun, pulling on the peanut plants, sweating as his parents and grandparents had for years, he wanted to try some snuff.

Environmental toxins, such as certain poisonous mushrooms and a type of poison that can grow on peanut plants (aflatoxins)

The peanut plant is susceptible to the mold Aspergillus flavus which produces a carcinogenic substance called aflatoxin.

Peanut oil is the oil from the seed, also called the nut, of the peanut plant.

Disease symptoms on the above ground parts of the peanut plants were described as severe dwarfing or stunting - hence the name Peanut stunt virus.

They then put these modified genes back into peanut plants.