PopuliC) 



TABLE 1 



Soil popiilations of Beet Eelworm 



in relatiqn to "beet-sickness" 



and the detection of infested fields. 



VIABLE CYSTS 

 (i.e. cysts with contents) 



Completely "sick" 

 "Sick" patches appearing 



No crop symptoms 



Unlnfested 



For populations in terms of eelworm eggs, multiply all figures by 100, 

 the average number of eggs per viable cyst. 



