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The occurrence of benomyl tolerance in Penicillium spp., Botrytis cinerea and a Gliocladium sp. on virus‐tested narcissus twin‐scales
Author(s) -
LYON G. D.
Publication year - 1978
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1978.tb00677.x
Subject(s) - benomyl , biology , narcissus , botrytis cinerea , fungicide , botany , horticulture , cultivar
SUMMARY All isolates of PeniciUium simplicissimum, P. verrucosum var. cyclopium, P. brevicompactum, P. multicolor, P. oxalicum, P. paxilli, Botrytis cinerea , and of a Gliocladium sp. obtained from necrotic virus‐tested narcissus twin‐scales previously dtoped in benomyl were tolerant to 1000 μg/ml of this fungicide in agar. Every necrotic twin‐scale examined was infected with at least one of these species. The first two species were the most frequently isolated and a similar range of species infected different narcissus clones or different cultivars. It is argued that the use of benomyl during the twin‐scaling programme should be discontinued as soon as a suitable alternative fungicide is found.