The efficacy of fumigation of nematode‐infested soil following different methods of soil sealing

Abstract

SUMMARY In a pot experiment and field tests in eastern Scotland during 1978, soils infested with Pratylenchus spp., Rotylenchus robustus(de Man) Filipjev, Trichodorus primitivus(de Man) Micoletzky, T. velatus Hooper and Paratrichodorus pachydermus(Seinhorst) Siddiqi were treated with a liquid fumigant, either 1, 3 dichloropropene or metham sodium. A resin spray, Concure or Vinamul, was then used to seal the surface of the treated soil or granules of the sterilant dazomet were incorporated in the soil. The addition of resin sprays failed to improve nematode mortahty in the pot test but enhanced control in several field tests. Addition of dazomet, even at a low rate, increased nematode mortality when incorporated in the soil efliciently.