Resistance of Anhydrobiotic Aphelenchus avenae to Methyl Bromide Fumigation
Abstract
The effect of methyl bromide (MB) was tested on active and anhydrobiotic Aphelenchus avenae. A. avenae was induced into anhydrobiosis by three different techniques. Both active and anhydrobiotic nematodes were subjected to 3,000 [mu]1 MB/liter air for 14 periods from 0 to 82 h. Anhydrobiotic nematodes were more resistant to fumigation than active nematodes, regardless of the technique used to induce anhydrobiosis. The percent survival decreased with increasing MB exposures ([mu]1 MB × h). For an LD[sub9][sub5] of 45,000-54,000 [mu]1/1 × h were required for active nematodes and 279,000 [mu]1/1 × h for anhydrobiotic nematodes. Key Words: anhydrobiosis, Aphelenehus avenae, survival, methyl bromide, soil fumigation.Downloads
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