Harvest load gradesheet data for pistachios 2007-2017

The navel orangeworm, Amyelois transitella, is the primary pest of pistachios in California. The first A. transitellaoutbreak of the twenty-first century occurred in 2007 and a total of five outbreaks occurred between 2007-2017 (total insect damage > 1%). This study used processor information to identify the nut factors associated with the outbreaks. Processor grade sheets were used to explore the relationship between the variables time of harvest, percent nut split, percent nut dark staining, percent nut shell damage and percent adhering hull for Low Damage (82,537 loads) and High Damage years, (92,307 loads). Total insect damage (±SD) for the Low Damage years averaged 0.005±0.01 and in High Damage years was three times higher, 0.015±0.02. In Low Damage years the strongest correlation was between total insect damage and two variables, percent adhering hull and dark stain (0.25, 0.23) while in High Damage years the correlation between total insect damage and percent dark stain was th..., , Data is in Excel format

脐橙螟（navel orangeworm, Amyelois transitella）是加州开心果的主要害虫。21世纪首次A. transitella暴发发生于2007年，2007-2017年间共发生5次暴发（总虫害损失>1%）。本研究利用加工商信息识别与暴发相关的坚果因素。加工商等级表（processor grade sheets）被用于探究低损失年份（82537批次）和高损失年份（92307批次）中收获时间、坚果开裂率（percent nut split）、坚果深色污渍率（percent nut dark staining）、坚果壳破损率（percent nut shell damage）及附着果壳率（percent adhering hull）等变量之间的关系。低损失年份的总虫害损失（±标准差，SD）平均为0.005±0.01，高损失年份则高出三倍，达0.015±0.02。在低损失年份，总虫害损失与两个变量（附着果壳率和深色污渍率）的相关性最强（相关系数0.25、0.23）；而在高损失年份，总虫害损失与深色污渍率的相关性则……数据格式为Excel。