“And there’s an ‘edge effect’ with this disease. The smaller your citrus blocks are, the more edge there is.

“Study after study shows that the primary spots you’ll first find both the psyllids and disease are at the grove’s edge — they don’t immediately head to the center of the grove. Since Texas has smaller blocks than Florida, that’s another challenge we face.”

Once an answer is found do you think there will be an effort by U.S. citrus to rid the country of this, like the cotton industry dealt with the boll weevil?

“Well, you don’t find a lot of cotton in people’s dooryards. It isn’t a dooryard plant.

“Citrus, on the other hand, is very much established in dooryards. I can’t tell you how many trailer parks we have down here. It isn’t unusual for a park to have 1,000 units. And in each of those units, there’s typically three to five trees in a small space. There are simply tons of trees in dooryards here.

“That’s why it would be very hard to deal with compared to the boll weevil — and that was hard enough.”

For more, see http://southeastfarmpress.com/orchard-crops/qa-harold-browning-chief-operating-officer-citrus-research-and-development-foundation and  http://deltafarmpress.com/louisianas-citrus-industry-feels-threat-greening-disease