Gantner, M., Golan, K., & Gawlowska, J. 2003 Effectiveness of action of plant protection products containing paraffin oil in controlling the European fruit lecanium on hazel.. Ochrona Roslin 47(4): 12-13.

Notes: Of a number of paraffin oil products tested against Parthenolecanium corni on hazelnut in Poland in 2000-2002, Promanal 60 EC at 2 litres/100 litres water was the most effective, reducing the larval population by 80% on average.