USDA TO REDUCE CITRUS ESTIMATING PROGRAM the U.S. Agriculture Department's National Agricultural Statistics Services (NASS) said it will change its citrus estimate program for California and Arizona, starting in 1988. NASS said it will discontinue California forecasts for lemons during December, February, March, May and June and for grapefruit and tangerines for those months plus November. Forecasts for lemons will be issued in October, November, January, April and July and for grapefruit in October, January, April, and July and for tangerines in October, January and April. There will be no change in the estimating program for California oranges. Arizona forecasts will be dropped for lemons, oranges, grapefruit and tangerines in November, December February, March, May and June, with forecasts retained in October, January, April and July, it said. There will be no changes in the estimating program for citrus in Texas or Florida.