TY - JOUR AU - Riedl, Helmut AU - DeTar, James E. TI - Post-harvest codling moth infestion on pears—a potential threat for next year's crop JF - California Agriculture JO - Calif Agr Y1 - 1977/11/01 VL - 31 IS - 11 SP - 14 EP - 17 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v031n11p14 AB - Rauschkolb and Mikkelsen (“Survey of Fertilizer Use in California- 1973,” UC Division of Agricultural Sciences bulletin, forthcoming) estimated common fertilizer application rates and percentages of land fertilized by area for individual crops in 1973. We derived weighted statewide application rates from these estimates. Thus, our estimates of application rates are based on the cropping pattern existing in 1973. A significant change in the location of crop production in California could produce a substantial change in fertilizer use without any change in fertilizer prices or planted acreage.