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Brassicaceae plow-downs
One way to take advantage of the biopesticides produced by Brassicaceae species is to use the plants as green manures. As such, the mustard or rapeseed crop is planted within the rotation such that it is incorporated into the soil prior to seed set. Glucosinolates within the tissues are hydrolyzed by myrosinase when plant cell membranes are broken. Our research indicates that soil-borne pest suppression is likely to be improved by choosing a high glucosinolate-containing variety of rapeseed or mustard and providing adequate moisture to increase allelochemical release. However, the greatest improvements in the use of Brassicaceae biofumigants to control soil-borne plant pests will be achieved by focusing on methods to increase plant cell disruption thereby maximizing glucosinolate hydrolysis and allelochemical release.
 
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Matthew J. Morra
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