Verticillium wilt controlled: Chloropicrin achieves effective control of Verticillium wilt in strawberry plantings if properly applied as soil fumigant

Wilhelm, S; Koch, E

Verticillium wilt controlled: Chloropicrin achieves effective control of Verticillium wilt in strawberry plantings if properly applied as soil fumigant

Authors

Stephen Wilhelm
Edward C. Koch

Authors Affiliations

Stephen Wilhelm is Associate Plant Pathologist, University of California, Berkeley; Edward C. Koch is Farm Advisor, Santa Cruz County, University of California.

Publication Information

Hilgardia 10(6):3-14. DOI:10.3733/ca.v010n06p3. June 1956.

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Abstract

Three milliliters of chloropicrin injected 6" deep into moist soil will diffuse a cubic foot of soil volume in sufficient concentration to kill the Verticillium wilt fungus. This information—obtained from laboratory and greenhouse research—has been generally substantiated in commercial fumigation for Verticillium wilt control in chrysanthemums. It applies to soils varying from light sandy loams to moderately heavy clay loams; to soil temperatures of 45°F to 60°F; to soil moisture of a seedbed level extending to the soil surface; and to a completely pulverized soil tilth extending to at least a 9" depth.

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