‘DD’ as a Means of Controlling Heterodera rostochiensis (Woll.)

INVESTIGATIONS during the past four years into the chemical control of H. rostochiensis have revealed that chloropicrin, ethylene dibromide, `Dowfume G', 1-2 dichloropropene and 1-3 dichloropropane (crude `DD') and two high boiling-point fractions of crude `DD' are all effective soil fumigants. Because of its efficacy, ease in handling and comparative low cost, crude `DD' is outstanding among these.