Abstract
Fungal infections transmitted through the soil continue to pose a threat to a variety of horticultural and agricultural products, including tomato and chilli. The indiscriminate use of synthetic pesticides has resulted in a slew of unintended consequences for the surrounding ecosystem. To achieve sustainable productivity, experts have turned their attention to natural alternatives. Due to their biodegradability, varied mode of action, and minimal toxicity to non-target organisms, plant-derived protectants (PDPs) are being hailed as a superior replacement for plant pesticides. This review outlines PDPs’ critical functions (including formulations) in regulating soil-borne fungal diseases, keeping tomato and chilli pathogens in the spotlight. An in-depth examination of the impact of PDPs on pathogen activity will be a priority. Additionally, this review emphasises the advantages of the in silico approach over conventional approaches for screening plants’ secondary metabolites with target-specific fungicidal activity. Despite the recent advances in our understanding of the fungicidal capabilities of various PDPs, it is taking much longer for that information to be applied to commercially available pesticides. The restrictions to solving this issue can be lifted by breakthroughs in formulation technology, governmental support, and a willingness to pursue green alternatives among farmers and industries.
Highlights
Introduction published maps and institutional affilSynthetic pesticides have long been used to effectively manage plant diseases
Synthetic pesticides cause nearly two lakhs of deaths from poisoning each year, and 99% of them occur in developing countries [3]
Tomato plants cultivated in a non-circulating hydroponic system were treated with Thymbra capitata essential oil at 1.473 μL/L concentration, resulting in a 30.76% reduction in disease severity caused by F. oxysporum f. sp. radicis-lycopersi [22]
Summary
Smaili et al [25,26], in their study, used derivatives of the α-euphorbol, 31-norlanostenol, and lupeol acetate compounds isolated from the latex of different Euphorbia spp. as a seed treatment and spray for the control of Verticillium dahliae in tomato, and observed a significant reduction in symptom development at a very low concentration of 10 μg/mL. The derivatives of these compounds worked as the elicitors of plant defense. 50 days, the tomato plant showed no signs of Fusarium or Verticillium wilt
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