Effects of the biological nematicide, DiTera®, on movement and sensory responses of second stage juveniles of Globodera rostochiensis, and stylet activity of G. rostochiensis and fourth stage juveniles of Ditylenchus dipsaci

  title={Effects of the biological nematicide, DiTera{\textregistered}, on movement and sensory responses of second stage juveniles of Globodera rostochiensis, and stylet activity of G. rostochiensis and fourth stage juveniles of Ditylenchus dipsaci},
  author={Ursula Twomey and Richard N. Rolfe and Prem Warrior and Roland N. Perry},
DiTera® (Valent BioSciences Corp.), a novel biological nematicide obtained from fermentation with a hyphomycete fungus, adversely affected activity and movement through sand columns of second stage juveniles (J2) of Globodera rostochiensis. Electrophysiological tests demonstrated that exposure to 1% DiTera® prevented sensory perception of potato root diffusate. Electropharyngeograms of stylet protractor muscle activity showed that prior exposure of fourth stage juveniles of Ditylenchus dipsaci… 
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