Abstract
Horticultural crop pathogens represent a recalcitrant challenge typically addressed with
synthetic pesticides, causing significant environmental harm. As an alternative,
bioactive agents (basic substances, microbial antagonists, and seaweed extracts) over
sustainable solutions while maintaining effective pathogen control. Simultaneously, the
plasticulture that supports the agricultural sector, particularly in mulch films, highly
contributes to the accumulation of microplastics in soils. Addressing both issues,
biodegradable platforms based on functionalized bioplastics emerge as eco-friendly
replacements.
The objective of the EU-funded project BioBIVE (no. 101130442) is to develop
biodegradable delivery systems for the controlled release of bioactive agents, which
target fungal pathogens in three key European horticultural crops (tomatoes,
strawberries, and carrots). These systems combine three types of bio-platforms
(bioplastic mulch, biochar, and sprayable mulch) with diverse bioactive compounds,
such as basic substances, antagonistic microorganisms, and seaweed extracts, to
maximize e_icacy.
Preliminary findings showed a high fungicidal activity of di_erent basic substances
against important fungal phytopathogens (such as Rhizoctonia solani, Botrytis cinerea
or Fusarium oxysporum, among others), also presenting themselves as an effective ecosustainable
alternative to current chemical fungicides. Additionally, laboratory trials with
antagonistic bacteria and seaweed extracts showed potential in inhibiting pathogen
growth, highlighting their complementary role alongside basic substances in sustainable
crop protection strategies.
In conclusion, this study focuses on the potential of biodegradable systems to replace
conventional pesticides, contributing to reduced environmental impact while ensuring
effective crop protection.