Efectos de insecticidas botánicos comerciales en Tamarixia radiata, un ectoparasitoide de Diaphorina citri

Abstract

ABSTRACT. The e ect of three commercial botanical insecticides on the mortality by residues and ingestion of Tamarixia radiata was evaluated. Biodie and NeemPHC had 12.7 and 12.3 % residue mortality e ect and 33.3 and 28.7 % mortality by ingestion, respectively. Mortality also increased signi cantly as time went by, although only with regard to ingestion, and up to 48 and 72 h, for both Biodie and NeemPHC. CinnAcar did not have a major toxic e ect when ingested and none of the botanical insecticides had signi cant e ects on the appearance of adults. The three products under evaluation do not interfere with biological control.

Selectivity of essential oils to the egg parasitoid Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)

“…The main differences between the three essential oils are largely due to the mechanisms of action of the major compounds, which induced low toxicity at lower concentrations, altering host selection and the emergence of T. pretiosum, after spraying the eggs of S. frugiperda (CAMPOS et al, 2019;EL-WAKEIL, 2013). can reduce the period of insecticidal activity of the essential oils in the field; however, the high capacity for causing mortality of some compounds can result in significant mortality a few hours after application, and allow temporal integration by releasing T. pretiosum before or after spraying (ISMAN; MIRESMAILLI; MACHIAL, 2011;MIRESMAILLI;ISMAN, 2014;MONSREAL-CEBALLOS et al, 2017). The selectivity of the essential oils can be attributed to such factors as the development of detoxifying metabolic pathways and the excretion of toxic compounds by the parasitoids (KOUL; DHALIWAL, 2004), in addition to the low residual power of the essential oils, a result of the rapid degradation of compounds with insecticidal potential (SAXENA et al, 2018).…”

Botanicals Against Tetranychus urticae Koch Under Laboratory Conditions: A Survey of Alternatives for Controlling Pest Mites

“…This has allowed the development of commercial products with formulations based on substances of natural origin, such as CinnAcar ® , Biodie ® and PHC Neem ® , which are produced from compounds and mixtures isolated from plant extracts. As an example for this case, they have demonstrated compatibility with the natural predator Tamarixia radiata Waterston (Hymenoptera: Eulophidae)—parasitoid of the Diaphorina citri Kuwayama (Hemiptera: Psyllidae)—thus these formulations may constitute excellent alternatives to be included into integrated management programs (IPM) of the so-called “Asian citrus psyllid” [33]. Therefore, the fact that these botanical pesticides are compatible with natural predators becomes an advantage in the control of pests and constitutes an additional tool that can be used in integrated pest management strategies.…”