The effects of ammonia-generating fertilizer on Criconemoides xenoplax in pot cultures.

Fertilizer which generated NH was detrimental to Criconemoides xenoplax grown in the greenhouse. The fertilizer was lethal to the nematodes in vitro only when it was accompanied by urease-positive bacteria or partially purified urease. The detrimental action of the fertilizer-urease mixture was ntore rapitt at pH 8 than at pH 7.