Lethal and sublethal effects of lufenuron on the predator Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae)

Suárez-López, Yurany Andrea; Hatem, A. E.; Aldebis, H. K.; Osuna, E. Vargas

doi:10.1016/j.cropro.2020.105217

Cited by 13 publications

(10 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous studies have demonstrated that lufenuron can not only influence the development of pest larvae but also oogenesis, embryonic development, and egg hatching. − However, lufenuron is more active via ingestion than contact, and its bioactivities are usually analyzed using the oral feeding method. − Our unpublished data also support this conclusion that the contact toxicity of lufenuron is remarkably lower than its stomach toxicity against lepidopteran insect larvae (Table S1). The bad penetrability of lufenuron across the insect cuticle leads to lower contact toxicity, which decreases its effective utilization and constrains its large-scale field application.…”

Section: Introductionsupporting

confidence: 70%

Nanodelivery System Alters an Insect Growth Regulator’s Action Mode: From Oral Feeding to Topical Application

Zhang

Yan

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Insect growth regulators (IGRs) guide animal development through injection, oral feeding, or topical application. Among them, lufenuron is a widely used insect cuticle inhibitor but only shows a gastric toxic effect. Lacking contact toxicity limits the effective utilization when spraying the lufenuron pesticide. To overcome this shortcoming, a nanocarrier (star polycation, SPc)-based transdermal delivery system was applied to improve the penetrability and contact toxicity of lufenuron. The fluoride groups in lufenuron could interact with the tertiary amines in the branch-chain of the SPc through electrostatic interaction to form a lufenuron/SPc complex. The above interaction reduced the particle size of lufenuron from 933 to 70 nm. Interestingly, the contact toxicity of SPc-loaded lufenuron was remarkably improved with effects of higher larval mortality and lower egg hatching rate of the devastating pest fall armyworm. The physiological and molecular toxic mechanism was revealed by RNA-Seq analysis. The SPc-loaded lufenuron apparently down-regulated cuticle-related genes and thus inhibited insect cuticle formation. Such contact toxicity was achieved by the transdermal nanodelivery of lufenuron, which up-regulated endocytosis-related genes for drug uptake. This study is the first successful application of a nanoparticle-mediated transdermal delivery system to explore the contact toxicity of an IGR, which alters the IRG’s action mode from oral feeding to topical application.

show abstract

Section: Introductionsupporting

confidence: 70%

Nanodelivery System Alters an Insect Growth Regulator’s Action Mode: From Oral Feeding to Topical Application

Zhang

Yan

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…In another study, it was reported that the use of lufenuron reduces the duration of developmental time in males and females of green lacewing, which is consistent with the findings of the present study (Suárez-López et al, 2020). Less susceptibility of C. carnea larvae was recorded when consuming neem treated aphids compared to Coccinella septempunctata.…”

Section: Discussionsupporting

confidence: 92%

“…The sub-lethal effects can be very sensitive and affect populations at concentrations below the concentration-loss curve (Stark & Banks, 2003). Several previous studies have examined the sub-lethal effects of different insecticides on the biological parameters of C. carnea (Garzón et al, 2015;Maia et al, 2016;Mohammadi et al, 2009;Suárez-López et al, 2020). The standard errors were calculated using the bootstrap procedure with 100,000 samples.…”

Section: Discussionmentioning

confidence: 99%

A Study on the Toxicity and Sublethal Concentrations of Three Insecticides on the Population Dynamics of Green Lacewing Chrysoperla carnea Stephens

Alsendi¹,

Kareem²,

Havasi³

et al. 2023

AJPP

View full text Add to dashboard Cite

Alsendi, A., A.A. Kareem, M. Havasi and Gh. Golmohammadi. 2023. A Study on the Toxicity and Sublethal Concentrations of Three Insecticides on the Population Dynamics of Green Lacewing Chrysoperla carnea Stephens. Arab Journal of Plant Protection, 41(1): 28-36. https://doi.org/10.22268/AJPP-41.1.028036 The study was carried out to evaluate toxicity and sublethal effects of lufenuron, novaluron, and lambda-cyhalothrin on natural enemies such as Chrysoperla carnea. All sub-lethal concentrations caused a significant decrease in oviposition period, total fecundity, longevity, and total life span of C. carnea compared to the control. Maximum and minimum mean lifespan of C. carnea individuals were observed in the untreated group and LC30 concentration of novaluron. Total fecundity varied from 153.47 offspring/individual in treatment with LC30 novaluron to 300.12 offspring/individual in the control treatment. The highest value for intrinsic and finite rate of increase (r, λ) was obtained by the concentration of lambda-cyhalothrin. The net reproduction rate (R0) reached its lowest level in novaluron treatment. As a result, the effects of sublethal concentrations of lufenuron, novaluron, and lambda-cyhalothrin on C. carnea were assessed and discussed to design improved integrated management programs. Keywords: Integrated pest management, side effects, aphidophagous predators, natural enemies.

show abstract

“…IPM recommends the use of selective insecticides in line with the presence of natural enemies, and the use of biological control should always be prioritized over the exclusive application of insecticides (SHAN et al, 2020). Among the natural enemies present in fruit crops, the generalist predator Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) is of great importance due to its wide geographic distribution, high predatory capacity in the larval stage, wide range of prey, tolerance to some insecticides and high reproductive potential (PASINI et al, 2020;SUÁREZ-LÓPEZ et al, 2020). In addition, generalist predators such as C. externa have an advantage over specialists due to polyphagia and can exploit diverse food resources and survive in the agroecosystem without target pests, thus preventing their resurgence (DE ARMAS et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…IPM programs seek to increase the compatibility between control methods, including chemical and biological methods, so as to increase their effectiveness (SUÁREZ-LÓPEZ et al, 2020). One of the first steps in designing a biological control strategy is to study the toxicological profile of insecticides used to control pest arthropods against their natural enemies.…”

Section: Introductionmentioning

confidence: 99%

Residual toxicity of four insecticides on larvae and adults of the predator Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae)

Armas¹,

Rakes

Pasini³

et al. 2023

Rev. Bras. Frutic.

View full text Add to dashboard Cite

The objective was to evaluate the residual action of the insecticides acetamiprid + etofenprox, spinetoram, indoxacarb and methoxyfenozide on the predator Chrysoperla externa Hagen, 1861 (Neuroptera: Chrysopidae). The bioassays followed the methodologies proposed by the International Organization for Biological and Integrated Control (IOBC). The insecticides were sprayed on grapevine plants cv. Burgundy, using the maximum recommended field dosage for fruit trees. Larvae and adults of the predator were exposed to leaves containing the insecticide residues, at 3, 10, 17, 24 and 31 days after spraying, to determine the residual effect on the following biological parameters: mortality, fecundity and fertility. Based on the toxicity observed during the bioassays, the insecticides were classified according to the IOBC persistence scale. Spinetoram was classified as moderately persistent to larvae and slightly persistent to adults, indoxacarb also he was consideredpersistent for larvae and as a short-lived for the adult stage of the lacewing, thus showing the difference in susceptibility between the stages of development of C. externa. The insecticides acetamiprid + etofenprox and methoxyfenozide are the most suitable for ecologically safe application, in areas where the predator occurs because they are classified as short-lived insecticides for the larval and adult stages of C. externa.

show abstract

Lethal and sublethal effects of lufenuron on the predator Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae)

Cited by 13 publications

References 35 publications

Nanodelivery System Alters an Insect Growth Regulator’s Action Mode: From Oral Feeding to Topical Application

Nanodelivery System Alters an Insect Growth Regulator’s Action Mode: From Oral Feeding to Topical Application

A Study on the Toxicity and Sublethal Concentrations of Three Insecticides on the Population Dynamics of Green Lacewing Chrysoperla carnea Stephens

Residual toxicity of four insecticides on larvae and adults of the predator Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae)

Contact Info

Product

Resources

About