1. Adachi I (1998) Utilization of an aggregation pheromone for forecasting population trends of the stink bugs injuring tree fruits. Pl Prot 52:515–518 (in Japanese)
2. Chiba Prefecture (2014) Pest advisory on forecasted outbreak of the fruit-bugs (in Japanese) http://www.pref.chiba.lg.jp/lab-nourin/press/2014/documents/20140530tyuuihou1.pdf . Accessed 3 Dec 2016
3. Chiba Prefecture (2015) Forest and forestry statistics of fiscal year 2014 in Chiba Prefecture. Chiba Prefecture (in Japanese)
4. Chiba Prefecture (2016) Prediction of pollen production of Cryptomeria japonica in Chiba, spring 2016. (in Japanese) http://www.pref.chiba.lg.jp/lab-nourin/nourin/shuyouseika/documents/h28_kafun.pdf . Accessed 3 Aug 2016
5. Crawley MJ (2005) Statistics: an introduction using R. Wiley, Chichester