Citrus canker is back in Texas, eradication efforts are underway

Citrus canker was successfully eradicated 70 years ago, last spotted in two Corpus Christi trees in 1943. In 2016, however, the USDA confirmed the presence of the Asiatic A strain, the most severe form of citrus canker, on two sour orange trees in Houston.

More recently, this strain has been found in the Upper Gulf Coast area, which poses a significant threat to commercial citrus production in Texas. Valued at over 200 million US dollars, the commercial citrus industry is contained entirely in the Lower Rio Grande Valley across 28,000 acres, of which 70 percent is grapefruit and 30 percent is sweet orange. Grapefruit is especially susceptible to strain A, which causes blemishes to the fruit and makes it unmarketable according to

Florida invested more than one billion dollars to eradicate citrus canker, with limited success. To prevent a similar situation in Texas, the USDA and the Texas Department of Agriculture, in collaboration with the Texas A&M University-Kingsville Citrus Center, are conducting surveys for early detection. They are also removing and properly disposing infected trees and leading public outreach efforts to prevent further spread of the disease.

Surveys and eradication efforts



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