Use of Natural Chemical Products for Pest Control

Alves, Dejane Santos; Ascari, Jociani

doi:10.1007/978-3-030-24733-1_38

Cited by 1 publication

(1 citation statement)

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“…In the search for new tools for plant disease management, one area of research is the use of natural products and metabolites [26]. Natural products are those that can be extracted from plants or animals [27] and used to control pests [28]. Imported fire ants (Solenopsis invicta Buren, Solenopsis richteri Buren, and their hybrid; Hymenoptera: Formicidae) invaded the United States almost a century ago and are found to be problematic to human health and agricultural production systems.…”

Section: Introductionmentioning

confidence: 99%

Fire Ant Venom Alkaloids: Possible Control Measure for Soilborne and Foliar Plant Pathogens

et al. 2021

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The purpose of this study was to evaluate fire ant venom alkaloids and an alarm pheromone analog against several plant pathogens, including Botrytis cinerea, Fusarium oxysporum, Phytophthora nicotianae, P. cryptogea, Pseudomonas syringae, Phytopythium citrinum, Rhizoctonia solani, Sclerotonia rolfsii, Xanthomonas axonopodis, and X. campestris. All pathogens were tested against red imported fire ant venom alkaloid extract and alarm pheromone compound for growth inhibition in in vitro assay. The venom alkaloid extract inhibited fungal and oomycete pathogens. Neither of the treatments were effective against bacterial pathogens. Three soilborne pathogens, P. nicotianae, R. solani, F. oxysporum, and one foliar pathogen, B. cinerea were selected for further in-vivo assays on impatiens (Impatiens walleriana ‘Super Elfin XP violet’). Total plant and root weight were higher in venom alkaloid treated plants compared to an inoculated control. The venom alkaloid treatment reduced damping-off, root rot severity, and pathogen recovery in soilborne pathogen inoculated plants. Similarly, venom alkaloid reduced Botrytis blight. However, higher venom rates caused foliar phytotoxicity on plants. Therefore, additional work is needed to evaluate rates of venom alkaloids or formulations to eliminate negative impacts on plants. Overall, these results suggest that red imported fire ant venom alkaloids may provide a basis for new products to control soilborne and foliar plant pathogens.

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Section: Introductionmentioning

confidence: 99%