Pictured on the left is the front cover of a 1996 edition of Potato Review in which David Trudgill and Mark Phillips wrote an article titled 'The White PCN: An Epidemic in Progress'. They are referring to Globodera pallida which is becoming (if it hasn't already) the most dominant PCN species across the UK. 

This article made me realise how long PCN has been threatening the industry. What I also realised is a viable cyst in the soil then, may still be viable in the soil now! Several publications that I've come across say cysts can remain viable in the soil for as long as 40 years. I wonder if there is an article out there about PCN from 1982?

Another similarity between now and then are the points raised in the article such as the effect a tolerant, susceptible variety has on multiplication rates, nematicides which are "better at controlling PCN damage than PCN multiplication", rotations and resistant varieties (although at that time only partially resistant varieties were available). A PCN piece written last week, today or tomorrow would likely mention some, if not all of these factors.