Results 141 to 150 of about 957 (177)

Engineering hypervirulence in a mycoherbicidal fungus for efficient weed control

Nature Biotechnology, 2002
Agents 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, Barry A, Cohen, Jonathan, Gressel   +2 more
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Formulation of mycoherbicidal strains ofFusarium oxysporum

Weed Science, 1998
Biomass abundant in chlamydospores obtained by liquid fermentation of mycoherbicidal strains ofFusarium oxysporumwas incorporated into alginate prills with various food substrates and granular formulations such as corn flour : starch, wheat flour : kaolin, rice : wheat flour, and rice : wheat gluten formulations.
K. P. Hebbar, R. D. Lumsden, J. A. Lewis, S. M. Poch, B. A. Bailey   +4 more
openaire   +1 more source

Adjuvants, Formulations, and Spraying Systems for Improvement of Mycoherbicides

Weed Technology, 1996
Herbicides 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, P. C. Quimby, A. J. Caesar, J. L. Birdsall, W. J. Connick, D. J. Daigle, M. A. Jackson, G. H. Egley, H. K. Abbas   +8 more
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Herbicides as Synergists for Mycoherbicides, and Vice Versa

Weed Science, 2010
Except 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.
openaire   +1 more source

A Vegetable Oil-Based Invert Emulsion for Mycoherbicide Delivery

Biological Control, 1996
Abstract A vegetable oil was used as the major constituent to develop an invert emulsion for use with mycoherbicidal agents. The oil phase (CPWA) contained soybean oil, a paraffinic spray oil, paraffin wax, and the emulsifying agents Arlacel 780 and Arlacel 989.
Jonathan G. Womack, Gillian M. Eccleston, Michael N. Burge   +2 more
openaire   +1 more source

The Mycoherbicide Approach with Plant Pathogens

1991
It 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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Mycoherbicides and other biocontrol agents for Senecio spp

Pesticide Science, 1993
AbstractClassical biocontrol of Senecio jacobaea (ragwort) has generally utilised herbivorous insects, although the nisi Puccinia expansa has also been considered. Although this rust is specific and damaging in the glasshouse. It has not been used in the field.Research into the ecophysiology of Senecio vulgaris (groundsel) infected by the rust Puccinia
Paul, Nigel D., Ayres, Peter G., Hallett, Steven G.   +2 more
openaire   +1 more source

Inoculum production of Phaeoramularia, a potential mycoherbicide for crofton weed

Australasian Plant Pathology, 1997
Factors likely to influence the production of Phaeoramularia sp. as a mycoherbicide to control crofton weed (Ageratina adenophora) were investigated. The fungus grew best on potato-dextrose agar (PDA) and carnation leaf-piece agar and sporulated best on PDA and a decoction agar made from A. adenophora. The fungus grew and sporulated best at 20 and 25°C
F. Wang, B.A. Summerell, D.R. Marshall, B.A. Auld   +3 more
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Progress in the Production, Formulation, and Application of Mycoherbicides

1991
Chemical 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, P. Charles Quimby, William J. Connick, Donald J. Daigle, Floyd E. Fulgham   +4 more
openaire   +1 more source

APPROACHES TO AND SUCCESSES IN DEVELOPING TRANSGENICALLY ENHANCED MYCOHERBICIDES

2007
Inundative 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, Sagit Meir, Yoav Herschkovitz, Hani Al-Ahmad, Inbar Greenspoon, Olubukola Babalola, Ziva Amsellem   +6 more
openaire   +1 more source