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ARS Home » Research » Publications at this Location » Publication #92904
Title: BIOCONTROL OF SOILBORNE DISEASES AND INSECT DAMAGE OF TOMATO AND PEPPER WITH GLIOCLADIUM VIRENS

Author
item MAO, WEILI - T.J. ENTERPRISES, SD
item Lewis, Jack
item HEBBAR, PRAKASH - PENN STATE UNIV, PA
item Lumsden, Robert

Submitted to: American Phytopathological Society Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 6/17/1998
Publication Date: N/A
Citation: N/A

Interpretive Summary: N.A.

Technical Abstract: The efficacy of seed treatment and root drench with co-cultured biomass of Gl-3 + Bc-F to reduce tomato and pepper diseases caused by Pythium ultimum, Rhizoctonia solani, Sclerotium rofsii, Fusarium oxysporum f. sp. lycopersici (tomato), and Phytophthora capsici (pepper) and to reduce damage caused by the Colorado Potato Beetle were evaluated in the greenhouse. Seeds treated with Gl-3 + Bc-F were planted in pathogen-infested and noninfested potting mix. Stands from treated seeds of both crops were comparable (>90%) to those from untreated seeds in noninfested mix. Seedlings (40-day-old) were put into pots with pathogen-infested soil/potting mix and drenched with a suspension of Gl-3 + Bc-F. Fresh weight of treated plants (200g/plant for tomato and 100g/plant for pepper) was greater (>80%) and disease severity was less (<35%) than untreated plants in the pathogen-infested controls. Tomato seedlings were also planted in pots (6 pots/cage) containing 20 beetles/cage. After 4 days, insect defoliation was 100% in untreated plants, but only 20-30% in treated plants.