Insecticide‐induced hormesis and arthropod pest management

Abstract

Ecological backlashes such as insecticide resistance, resurgence and secondary pest outbreaks are frequent problems associated with insecticide use against arthropod pest species. The last two have been particularly important in sparking interest in the phenomenon of insecticide-induced hormesis within entomology and acarology. Hormesis describes a biphasic dose-response relationship that is characterized by a reversal of response between low and high doses of a stressor (e.g. insecticides). Although the concept of insecticide-induced hormesis often does not receive sufficient attention, or has been subject to semantic confusion, it has been reported in many arthropod pest species and natural enemies, and has been linked to pest outbreaks and potential problems with insecticide resistance. The study of hormesis remains largely neglected in entomology and acarology. Here, we examined the concept of insecticide-induced hormesis in arthropods, its functional basis and potential fitness consequences, and its importance in arthropod pest management and other areas.

Low doses of a neonicotinoid insecticide modify pheromone response thresholds of central but not peripheral olfactory neurons in a pest insect

“…They can also have negative effects on non-target insects such as honeybees, for which several studies showed that neonicotinoids decrease survival, and impair foraging behaviour and learning and memory functions [5][6][7]. On the other hand, stimulatory effects on various life traits associated with low doses of insecticides have been reported, and this is currently becoming recognized as a general toxicological phenomenon called hormesis, characterized by inhibition at high doses and stimulation at low doses by the same toxic compound [8][9][10].…”

Impact of Tetranychus ogmophallos (Acari: Tetranychidae) on different phenological stages of peanuts

“…Late-season infestations are common in peanut fields and there are doubts as to whether mite control is feasible at this stage. When control is deemed necessary, the main method adopted is spraying with acaricides, which is costly and may give rise to unintended side effects such as secondary pest outbreaks, pest resurgence, reduction on populations of natural enemies, environmental contamination, besides risks to human health (Cutler 2013;Guedes and Cutler 2014;Zhan et al 2014;Guedes et al 2016). Therefore, it is essential to understand the impact of this mite in order to the design a successful pest management program (Meck et al 2013;Nyoike and Liburd 2013).…”

Toxicidade de extratos de Anadenanthera macrocarpa (Fabaceae: Mimosoideae) e Bougainvillea buttiana (Nyctaginaceae) para lepidópteros-praga

“…A mortalidade obtida com extrato de B. buttiana sobre H. armigera e S. cosmioides foi superior à constatada por Lodha et al (2011) (CORDEIRO et al, 2013;CUTLER, 2014). Sendo que o intervalo de dose deve ser respeitado para se chegar a uma maior eiciência no manejo, com uma redução da quantidade de produto aplicado.…”