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Title: Fusarium spp. and Pinus strobus seedlings: root disease pathogens and taxa associated with seed

Author: Ocamb, C. M.; Juzwik, J.; Martin, F. B.;

Date: 2002

Source: New Forests 24:67-79

Publication Series: Scientific Journal (JRNL)

Description: Eastern white pine (Pinus strobus L .) seeds were sown in soil infested wlth Fusarium proliferatum, root necrosis developed on seedling roots, and F. proliferatum as reisolated from symptomatic roots; thus, demonstrating that F. proliferatum is pathogenic to eastern white pine seedling. Soils infested with F. acuminatum or F. sporotrichiodes resulted in few diseased Seedlings. Seedlings with root rot generally showed reductions in seedling height. All Fusarium species tested were recovered from rhizosphere soil samples. Three seedlots of Pinus strobus were examined for Fusarium infestation. Fusarium species were recovered from most seeds In two seedlots. Fusarium proliferatum and F. sporotrichiodes were the predominant species isolated. Additional species not previously reported from P. strobus included: F. acuminatum, F. chlamydosporum, F. equiseti, F. graminearum, F. moniliforme, F. poae, F. polyphialidicum, F. heterosporum, F. sambucinum, and F. semitectum.

Keywords: F. moniliforme, F. oxysporum, F. polyphialidicum, F. proliferatum, F. sporotrichiodes, Fusarium equiseti

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Ocamb, C. M.; Juzwik, J.; Martin, F. B. 2002. Fusarium spp. and Pinus strobus seedlings: root disease pathogens and taxa associated with seed. New Forests 24:67-79


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