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Home → Publications → National Nursery Proceedings → 1986 → Fumigation Effect on Soilborne Pathogens, Mycorrhizae, and Growth of Douglas-fir Seedlings

Fumigation Effect on Soilborne Pathogens, Mycorrhizae, and Growth of Douglas-fir Seedlings

Soils were treated with methyl bromide/ chloropicrin (MBC) at 360 lbs/A and 720 lbs/A or with Basamid at 350 lbs/A in a field trial with a randomized block design at two bare-root Douglas-fir nurseries near Olympia, Washington in 1984-85. The results showed that fumigation (1) increased fall 1+0 seedling count, (2) caused no 1+0 stunting or growth loss, (3) did not hinder formation of mycorrhizae, (4) suppressed and maintained low soilborne pathogen populations and (5) suppressed root infections by Fusarium spp. but not Pythium spp.


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Author(s): Yasuomi Tanaka, Kenelm W. Russell, Robert G. Linderman

Publication: National Nursery Proceedings - 1986

Event: Combined Western Forest Nursery Council and Intermountain Nursery Association Meeting
1986 - Tumwater, WA