Plant protecting and regulating compositions – Plant growth regulating compositions – Micro-organisms or from micro-organisms
Patent
1993-12-03
1995-10-03
Clardy, S. Mark
Plant protecting and regulating compositions
Plant growth regulating compositions
Micro-organisms or from micro-organisms
4352541, A01N 6304, C12N 114
Patent
active
054552192
ABSTRACT:
A biologically pure culture of Pythium rostratum is disclosed which produces zoosporangia which produce zoospores capable of killing knapweed. Also disclosed is a method for killing knapweed, comprising: (a) growing Pythium rostratum which selectively kills knapweed on a carrier saturated with a liquid nutrient capable of supporting Pythium rostratum growth and the production of zoosporangia; and (b) applying the Pythium rostratum carrier to knapweed-infested land under moisture and temperature conditions sufficient to support Pythium rostratum growth and zoospore release by the zoosporangia, such that the zoospores are produced which are capable of killing knapweed.
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Clardy S. Mark
Confederated Tribes of the Colville Reservation
LandOfFree
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