Abstract
AbstractSublethal fumigation followed by introduction of biological control agents may offer a method of controlling laminated root rot [Phellinus weirii (Murr.) Gilb.]. To determine the tolerance of P. weirii and 9 Trichoderma spp. to 2 fumigants, culture tubes containing 47 isolates of these fungi were fumigated for 10 days with 12 concentrations of chloropicrin and Vorlex in sealed glass containers. Considerable variation occurred in tolerance to fumigant among isolates within a species and among species. Isolates of P. weirii, however, were more consistent and were less tolerant to the fumigants than were isolates of the other fungi. In general, isolates of all fungi appeared more tolerant of Vorlex than of chloropicrin.
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