Results 171 to 180 of about 1,247 (216)

BIOHERBICIDES: RESEARCH AND RISKS

Toxin Reviews, 2007
Many microbes have bioherbicidal activity, and several phytopathogenic fungi and bacteria have been patented as weed-control agents. The phytotoxic components of most agents have not been elucidated, but some phytotoxins and other secondary compounds produced by such microbes may be toxic to mammalian systems. Furthermore, few rigorous assessments have
ROBERT E. HOAGLAND, C. DOUGLAS BOYETTE, MARK A. WEAVER, HAMED K. ABBAS   +3 more
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Bioherbicides: an overview

2017
Weed control is one of the greatest concerns in agriculture and land management. Chemical control methods are widespread, but there are many invasive species for which these are not economically feasible. In addition, there are social, economic and political drivers that work towards reducing the overall use of pesticides.
Erin N. Rosskopf, Raghavan Charudattan, William Bruckart   +2 more
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Advances in bioherbicide formulation

Weed Biology and Management, 2003
Formulation of a bioherbicide ideally should result in a product that has low cost, long shelf‐life, ease of application and efficacy. Formulation persists as a constraint to commercial development of many potential bioherbicides often because dew dependence in fungi limits their efficacy under dry‐land conditions.
BRUCE A. AULD, SHANE D. HETHERINGTON, HEATHER E. SMITH   +2 more
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Constraints in the Development of Bioherbicides

Weed Technology, 1995
Bioherbicides are biological control agents applied in similar ways to chemical herbicides to control weeds. The active ingredient in a bioherbicide is a living microorganism and it is applied in inundative doses of propagules. Most commonly the microorganism used is a fungus and its propagules are spores or fragments of mycelium; in this case the ...
Bruce A. Auld, Louise Morin
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Synthesis of the Bioherbicidal Fungus Metabolite Macrocidin A

Organic Letters, 2016
The second total synthesis of macrocidin A afforded the bioherbicidal fungal metabolite in 16 steps starting from doubly protected l-tyrosine. The 3-octanoyl side chain with the α-methyl group and an ω-bromo epoxide already in place was attached to the tetramic acid via a Yoshii-Yoda acylation, and the macrocycle was eventually closed in 55% yield by a
Robert G. Haase, Rainer Schobert
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Enhancing the Efficacy of Bioherbicides

2003
Plant pathogenic pseudomonads are inhibited by certain amino acids due to feedback inhibition or repression of key biosynthetic enzymes in amino acid biosynthesis pathways. As it turns out, plants are similarly inhibited by certain amino acids. These inhibitions can play a large role in plant pathology.
D. C. Sands, A. L. Pilgeram, N. K. Zidack, B. J. Jacobsen, K. S. Tiourebaev   +4 more
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Genetic Improvement of Bioherbicides

2002
Plant pathogenic fungi and bacteria potentially provide an ecologically sound means of suppressing weeds in agricultural and natural environments. Traditionally, the challenge of biological control has been to find naturally occurring plant pathogens capable of controlling a weed population (Charudattan 1991; Auld and Morin 1995).
A. L. Pilgeram, L. D. Carsten, D. C. Sands   +2 more
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Use of Essential Oils as Bioherbicides

Journal of Essential Oil Bearing Plants, 2008
A study was conducted to assess the allelopathic effects of essential oils from Eucalypt, Lawson Cypress, Rosemary and White cedar with the objective of exploring the possibility of their utilization for future weed management. The effects of these four essential oils on the germination of three weed species were examined.
Sadrollah Ramezani, Mohammad Jamal Saharkhiz, Fatemeh Ramezani, Mohammad Hussein Fotokian   +3 more
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Status of the biopesticide market and prospects for new bioherbicides

Pest Management Science, 2023
AbstractBiopesticides (commonly called Biocontrol or more recently bioprotection) have been experiencing double digit growth and now comprise about 10% of the global pesticide market driven by increased return on investment, restrictions on chemical pesticides, and pesticide resistance and residue management.
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Bioherbicides: Their Role in Tomorrow’s Agriculture

1992
The current status of bioherbicide development is briefly reviewed and factors constraining development are considered. The problems of strain selection, inoculum production, bioherbicide formulation, pesticide interactions and genetic manipulation and variability are addressed and indications given of the progress towards resolving some of the ...
M. P. Greaves, M. D. MacQueen
openaire   +1 more source