Abstract
There is a popular demand for more natural means of pest management, including weed management, as well as a demand by farmers for herbicides with new chemistries and/or new modes of action to which current weed resistances do not apply. Natural compounds offer a source compounds that can either meet these needs in their natural state or as templates for herbicides with better physicochemical properties for field use. In some cases, simply identifying a good herbicide target site with [...]
Highlights
Agriculture in developed countries has primarily relied on synthetic herbicides for weed management for more than 70 years
There is a great need for new weed management options in crops that can be provided by both natural phytotoxins and microbial bioherbicides
Compared to products for insect and crop pathogen management, these tools have been underutilized for weed management
Summary
Agriculture in developed countries has primarily relied on synthetic herbicides for weed management for more than 70 years. Natural products have been the inspiration for insecticides and fungicides with new molecular targets, but to a much lesser extent with herbicides (Lorsbach et al, 2019; Sparks, Duke, 2021). The growing popularity of and political pressure for organic agriculture and food grown without synthetic pesticides is providing an impetus to discover and develop weed management technologies that can meet these criteria. The demands for such products are not necessarily based on unequivocal information that such organic or more natural farming is more environmentally or toxicologically safe than conventional farming. This review is meant to discuss the literature on these two topics together, showing how they are related
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