The Nematicidal Effect of Metal Ions on the Pine Wood Nematode, Bursaphelenchus xylophilus

Abstract

As the methods of screening possible nematicides the immersion test,1) the fungal mat test,2) the pine-trunk injection test3’4) and the soil injection test3) have been widely used for the pine wood nematode, Bursaphelenchus xylophilus. Using the immersion test, the nematicidal effects on the pine wood nematode have been investigated for various organic compounds.1’5) Nevertheless, there is almost no report on the nematicidal inorganic compounds effective on the pine wood nematode. In the present study, the nematicidal activity of 11 metal ions was investigated by the immersion test in search of candidates for inorganic nematicides applicable to the pine wood nematode. We found that Cu2+ and Zn2+ were highly nematicidal and their activities were almost comparable to those of the organic nematicides. © 1984, Pesticide Science Society of Japan. All rights reserved.