- Author: Jeannette E. Warnert
European grapevine moth, light brown apple moth and glassy-winged sharpshooter combine to make "vigilance" the word of every day for growers in Sonoma County, reported Bonnie Durrance in the Sonoma County Sun.
“Invasive pests are a problem,” said Nick Frey, president of the Sonoma County Winegrape Commission. “They threaten California agriculture in general, and probably our ecology too, so it’s important to try to prevent their import into the state, and if they do get here, to detect them early. If you don’t get early detection, your odds of eradication are low.”
- Author: Jeannette E. Warnert
A recently certified report on light brown apple moth asserts that the pest, native to Australia, cannot be eradicated from California.
"Given the increases in LBAM population densities and the extent of contiguous spread of LBAM observed over the past 2 years, coupled with a lack of area-wide management tools, eradication is no longer feasible in California," the USDA report says.
The "area-wide management tools" referred to in the report includes aerial pheromone spraying, which drew the ire of many environmentalists. Instead, control will be attempted with twist-ties that release pheromones and...
- Author: Jeannette E. Warnert
As if native weeds, diseases and insects weren't enough, California farmers seem to be facing ever increasing numbers of imported pests from far flung corners of the globe.
That fact prompted the Napa Valley Register to run a story about "Moth wars" which detailed battles underway to combat light brown apple moth, a pest from Australia, and European grapevine moth, an Italian native that has caused serious grapevine damage in Uzbekistan and Azerbaijan.
The European grapevine moth "snuck in under the radar" about the same time agricultural officials were beginning releases of sterile light brown apple moth, the...
- Author: Jeannette E. Warnert
USDA scientists released 3,000 sterile light brown apple moths yesterday in a Carneros vineyard, according to an article in the Sonoma Index-Tribune. The scientists hope that flooding the environment with sterile moths will prevent females from mating with normal moths and producing offspring.
Reporter Emily Charrier-Botts wrote that UC Davis entomologist James Carey does not expect the program to be successful. He said releasing sterile insects has eradicated only one pest in history - the screw-worm fly. (Screw-worm fly maggots, a livestock pest, feed on...- Author: Jeannette E. Warnert
The panel, convened by the National Academy of Sciences, includes UC Berkeley entomologist Nicholas Mills. He acknowledged in the article that assessing the potential threat of an invasive species is a very difficult thing to do, and expressed concern about USDA's information gathering efforts.
"We found that people in the agency were sometimes using their best guesses,...