Results 101 to 110 of about 211 (155)
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Engineering hypervirulence in a mycoherbicidal fungus for efficient weed control
Nature Biotechnology, 2002Agents proposed for biocontrol of major weeds in arable row-crop agriculture have not met expectations because an evolutionary balance has developed between microorganism and weed, even when the mycoherbicide is used inundatively at very high levels (>10(4)spores ...
Ziva, Amsellem +2 more
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Progress in the Production, Formulation, and Application of Mycoherbicides
1991Chemical herbicides have been the mainstay for weed control practices in the United States since the end of World War II and are responsible for much of the unparalleled increased crop productivity that has occurred during this period (38). The high costs involved in developing and registering chemical herbicides and recent trends in environmental ...
C. Douglas Boyette +4 more
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Herbicides as Synergists for Mycoherbicides, and Vice Versa
Weed Science, 2010Except for a small number of cases in which biocontrol agents were introduced from the site of origin of a weed (classical biocontrol), there have been few cases where a pathogen was virulent enough to perform cost effectively in the field as a mycoherbicide.
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Formulation of mycoherbicides using a pasta-like process
Biological Control, 1991Abstract A new pasta-like (“Pesta”) process has been developed whereby fungal propagules are encapsulated (entrapped) in a wheat gluten matrix. A dough prepared from wheat flour, filler, fungus, and water was rolled into a thin sheet, air-dried, and ground into granules. The mycoherbicide agents Alternaria cassiae, A. crassa, Colletotrichum truncatum,
William J. Connick +2 more
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Adjuvants, Formulations, and Spraying Systems for Improvement of Mycoherbicides
Weed Technology, 1996Herbicides are used in the production of almost 100% of agronomic crops in the United States and in most horticultural row crops. By volume, herbicides represent nearly two-thirds of all pesticides used in crop production. However, public pressure is mounting to force industry to develop safer, more environmentally responsible approaches for ...
C. Douglas Boyette +8 more
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APPROACHES TO AND SUCCESSES IN DEVELOPING TRANSGENICALLY ENHANCED MYCOHERBICIDES
2007Inundative mycoherbicides have not been successful in weed con- trol in row crops, probably due to evolutionary barriers, and adding virulence factors was considered essential. Exogenous addition of the products of vari- ous genes was used to ascertain synergy as a prelude to adding them transgeni- cally.
Jonathan Gressel +6 more
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Stability of Colletotrichum truncatum in Culture Influences Mycoherbicide Efficacy
Mycologia, 1994Colletotrichum truncatum, a potential myco- herbicide for control of hemp sesbania, formed spon- taneous variants on agar medium. The predominant variant produced more spores than the wild type on potato dextrose agar but the wild type produced more spores on Czapek-Dox agar. Spore yield of both types was greatly reduced on Czapek-Dox.
Donald J. Daigle, Peter J. Cotty
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The Mycoherbicide Approach with Plant Pathogens
1991It is nearly a decade since the first of fungal herbicides, DeVine and COLLEGO, were introduced for commercial use, establishing mycoherbicides as a practical means of weed management. In 1982 Templeton (156) reviewed the status of weed control with plant pathogens, providing a comprehensive list of mycoherbicide candidates (Figure 2.1).
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Biotechnology for the Production and Enhancement of Mycoherbicide Potential
1999Pest species cause billions of dollars of damage annually, displace native species of plants and animals, and cause other types of environmental and social damage (Delfosse and Moorhouse, 1992). There is a worldwide effort to move toward the use of ecologically safe ‘environmentally friendly’ methods of protecting crops from pests and pathogens ...
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Histopathology of Ranunculus acris infected by a mycoherbicide, Sclerotinia sclerotiorum
Australasian Plant Pathology, 1998An anatomical study of the crown of Ranunculus acris (giant buttercup) and histopathological studies of infection of the crown by Sclerotinia sclerotiorum were carried out to assess the basis of crown resistance to this potential myco-herbicide, Resistance was largely related to morphological features of the crown, these being a thickened peripheral ...
S. Green +3 more
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