Federal agriculture officials say the government will spend another $1.75 million to fight a pest that has imperiled California's signature fruit. The U.S. Department of Agriculture's Animal and Plant Health Inspection Service said Tuesday that it will use funding from the 2008 farm bill to arrest the spread of the European grapevine moth. The moth, which feeds on grapes, other fruit and flower buds, is considered a serious threat to California's $18 billion wine industry. The voracious insect was first discovered in the U.S. last September in a Napa Valley vineyard and has since been found in at least five other California grape-growing counties.