Branding/Logomark minus Citation Combined Shape Icon/Bookmark-empty Icon/Copy Icon/Collection Icon/Close Copy 7 no author result Created with Sketch. Icon/Back Created with Sketch. Match!

Acute Toxicity and Sublethal Effects of Terpenoids and Essential Oils on the Predator Chrysoperla externa (Neuroptera: Chrysopidae)

Published on Apr 1, 2018in Neotropical Entomology 1.09
· DOI :10.1007/s13744-017-0547-6
R V Castilhos1
Estimated H-index: 1
,
A D Grützmacher1
Estimated H-index: 1
,
J R Coats1
Estimated H-index: 1
(Iowa State University)
Cite
Abstract
The search for new safer insecticides has increased in recent agriculture. Botanical compounds such as terpenoids and plant essential oils with insecticidal activity could represent important tools in pest management, and their risk assessment against non-target organisms is necessary since they may serve as a precursor for the synthesis of new insecticide active ingredients. For this study, the acute toxicity and sublethal effects of seven terpenoids and three essential oils with recognized insecticidal activity were evaluated on the predator Chrysoperla externa (Hagen) (Neuroptera: Chrysopidae) in laboratory bioassays. Results indicate that these compounds feature relative selectivity to the predator C. externa; however, sublethal effects on reproduction were recorded for some compounds. The phenolic monoterpenoids carvacrol and thymol were more acutely toxic than other terpenoids screened, with LD50 <20,000 μg/g; however, they were less toxic than natural pyrethrins (toxicity standard) in these bioassays. Sublethal effects on fecundity and fertility were observed for R-(+)-limonene, while oregano oil only affected fecundity. The compounds evaluated here have potential to be used as insecticides and can serve as backbone for future synthesis of selective active ingredients; however, a complete risk assessment to C. externa and other non-target organisms is necessary for their incorporation in future crop protection paradigms.
  • References (39)
  • Citations (4)
Cite
References39
Newest
Published on Dec 1, 2013in Insect Science 2.71
Moisés João Zotti9
Estimated H-index: 9
(UGent: Ghent University),
Anderson Dionel Grutzmacher1
Estimated H-index: 1
+ 1 AuthorsGuy Smagghe51
Estimated H-index: 51
(UGent: Ghent University)
The comprehensive knowledge that the delayed systemic and reproduction side effects can be even more deleterious than acute toxicity, has caused a shift in focus toward sublethal effects assessment on physiology and behavior of beneficial insects. In this study, we assessed the risks posed by some insecticides with different mode of action through lethal and delayed systemic sublethal effects on the pupation, adult emergence, and reproduction of the chrysopid Chrysoperla externa (Hagen, 1861; Ne...
Published on Aug 30, 2013in Journal of the Science of Food and Agriculture 2.42
Bárbara Teixeira17
Estimated H-index: 17
,
António Marques35
Estimated H-index: 35
+ 6 AuthorsMaria Leonor Nunes30
Estimated H-index: 30
BACKGROUND: There is a growing interest in industry to replace synthetic chemicals by natural products with bioactive properties. Aromatic plants are excellent sources of bioactive compounds that can be extracted using several processes. As far as oregano is concerned, studies are lacking addressing the effect of extraction processes in bioactivity of extracts. This study aimed to characterise the in vitro antioxidant and antibacterial properties of oregano (Origanum vulgare) essential oil and e...
Published on Nov 1, 2012in Pest Management Science 3.25
Adi Kliot8
Estimated H-index: 8
,
Murad Ghanim37
Estimated H-index: 37
Insects are exposed to a variety of stress factors in their environment, and, in many cases for insect pests to agriculture, those factors include toxic chemical insecticides. Coping with the toxicity of insecticides can be costly and requires energy and resource allocation for adaptation and survival. Several behavioural, physiological and genetic mechanisms are used by insects to handle toxic insecticides, sometimes leading to resistance by constitutive overexpression of detoxification enzymes...
Published on Apr 27, 2012in Journal of Natural Products 4.26
Marcin Szczot7
Estimated H-index: 7
,
M M Czyzewska5
Estimated H-index: 5
+ 1 AuthorsJerzy W. Mozrzymas23
Estimated H-index: 23
α-Thujone (1a), a constituent of wormwood, has been suspected to cause adverse psychoactive reactions in addicted drinkers of absinthe. While the content of 1a in absinthe is too low for such effects, at higher doses it can indeed induce seizures and inhibit GABAA receptors (GABAARs). The effect of 1a on GABAergic synaptic currents and the mechanisms by which it modulates GABAARs remain unknown. To address these issues, cultured hippocampal neurons were used to investigate the action of 1a on GA...
Published on Feb 1, 2012in Pesticide Biochemistry and Physiology 2.87
Jennifer A. Anderson4
Estimated H-index: 4
(Iowa State University),
Joel R. Coats48
Estimated H-index: 48
(Iowa State University)
Abstract The essential oils from many botanicals have been screened for insecticidal activity. Two constituents of the Alaskan yellow cedar tree, the monoterpenoid carvacrol and the sesquiterpenoid nootkatone, both are toxic against several arthropods. The mode of action through which nootkatone and carvacrol exert their insecticidal activity remains uncertain. It has been hypothesized that they may inhibit acetylcholinesterase enzyme activity. The degree of acetylcholinesterase inhibition of ca...
Published on Jan 7, 2012in Annual Review of Entomology 11.80
C. Regnault-Roger12
Estimated H-index: 12
,
Charles Vincent27
Estimated H-index: 27
,
John T. Arnason46
Estimated H-index: 46
(U of O: University of Ottawa)
In recent years, the use of essential oils (EOs) derived from aromatic plants as low-risk insecticides has increased considerably owing to their popularity with organic growers and environmentally conscious consumers. EOs are easily produced by steam distillation of plant material and contain many volatile, low-molecular-weight terpenes and phenolics. The major plant families from which EOs are extracted include Myrtaceae, Lauraceae, Lamiaceae, and Asteraceae. EOs have repellent, insecticidal, a...
Published on Nov 1, 2010in Pesticide Biochemistry and Physiology 2.87
Fan Tong9
Estimated H-index: 9
(Iowa State University),
Joel R. Coats48
Estimated H-index: 48
(Iowa State University)
Abstract Monoterpenoids and their derivatives from plant essential oils showed good insecticidal activities in previous studies, but the mechanisms of their action as natural insecticides are not known yet. In the present work, we evaluated the pharmacological action of five monoterpenoids (α-terpineol, carvacrol, linalool, pulegone, and thymol) on native insect GABA receptors from house flies and American cockroaches using radiotracer methods. In the [ 3 H]-TBOB binding assay, carvacrol, pulego...
Published on Sep 1, 2010in Crop Protection 2.17
Rameshwar Singh Rattan1
Estimated H-index: 1
(CSIR: Council of Scientific and Industrial Research)
Abstract Insect pest management is facing the economic and ecological challenge worldwide due to the human and environmental hazards caused by majority of the synthetic pesticide chemicals. Identification of novel effective insecticidal compounds is essential to combat increasing resistance rates. Botanicals containing active insecticidal phytochemicals appear to be promising to address some of these problems. Therefore, there is a continuous need to explore new active molecules with different m...
Published on Mar 1, 2010in Pest Management Science 3.25
Ranil Waliwitiya3
Estimated H-index: 3
(SFU: Simon Fraser University),
Peter Belton11
Estimated H-index: 11
(SFU: Simon Fraser University)
+ 1 AuthorsCarl Lowenberger26
Estimated H-index: 26
(SFU: Simon Fraser University)
BACKGROUND: The effects were evaluated of the plant terpenoid thymol and eight other neuroactive compounds on flight muscle impulses (FMIs) and wing beat frequency (WBF) of tethered blowflies (PhaeniciasericataMeig.). RESULTS:TheelectricalactivityofthedorsolongitudinalflightmuscleswascloselylinkedtotheWBFofcontrolinsects.Topically applied thymol inhibited WBF within 15‐30 min and reduced FMI frequency. Octopamine and chlordimeform caused a similar, early-onset bursting pattern that decreased in ...
Cited By4
Newest
Published on Jun 7, 2019in Scientific Reports 4.01
Bruno Pandelo Brügger2
Estimated H-index: 2
(UFV: Universidade Federal de Viçosa),
Luis Carlos Martínez7
Estimated H-index: 7
(UFV: Universidade Federal de Viçosa)
+ 6 AuthorsJosé Cola Zanuncio29
Estimated H-index: 29
(UFV: Universidade Federal de Viçosa)
Podisus nigrispinus Dallas (Heteroptera: Pentatomidae), released in biological control programs, is a predator of Lepidopteran and Coleopteran species. Lemongrass essential oil and its constituents can be toxic to this natural enemy. The major constituents of lemongrass essential oil are neral (31.5%), citral (26.1%), and geranyl acetate (2.27%). Six concentrations of lemongrass essential oil and of its citral and geranyl acetate constituents were applied to the thorax of P. nigrispinus nymphs a...
Published on Jun 1, 2019in Journal of Pest Science 5.13
Chaieb Ikbal , Roman Pavela30
Estimated H-index: 30
Aphids are significant pests of almost all current cultivated plants. Protection against aphids is based predominantly on the application of synthetic insecticides; however, these insecticides have a negative impact on nontarget organisms, including humans. Therefore, new plant protection alternatives have been sought. Essential oils (EOs) isolated from plants are among the substances generally considered safe for the environment and health and can thus be used as active substances in new botani...
Published on Mar 1, 2019in Journal of Pest Science 5.13
Giovanni Benelli43
Estimated H-index: 43
(UniPi: University of Pisa),
Roman Pavela30
Estimated H-index: 30
(CULS: Czech University of Life Sciences Prague)
+ 3 AuthorsFilippo Maggi24
Estimated H-index: 24
(University of Camerino)
Solidago gigantea and Solidago canadensis (Asteraceae) are two invasive weeds native to North America and introduced in Europe and Asia, where they are spreading quickly threatening the stability of local secondary ecosystems. These two plant invaders may represent an ideal bioresource to be exploited for production of green pesticides. Therefore, herein we evaluated the efficacy of the essential oils (EOs) obtained from their different parts, i.e. leaves, inflorescences and roots, against Culex...
Published on Mar 1, 2019in Industrial Crops and Products 4.19
Roman Pavela30
Estimated H-index: 30
(CULS: Czech University of Life Sciences Prague),
Giovanni Benelli43
Estimated H-index: 43
(UniPi: University of Pisa)
+ 9 AuthorsDonato Romano12
Estimated H-index: 12
(Sant'Anna School of Advanced Studies)
Abstract The development of effective and eco-friendly pesticides to manage mosquito vector larvae is a timely and crucial challenge nowadays. Insecticide resistance is on the rise, therefore plant-borne insecticides with multiple mode of action may represent promising candidates to control insect vectors. In the present work, we encapsulated selected essential oils (EOs) from Pimpinella anisum , Trachyspermum ammi and Crithmum maritimum into highly stable microemulsions (MEs) with the aim to de...
Published on Nov 5, 2018
Tina Maver8
Estimated H-index: 8
,
Manja Kurečič5
Estimated H-index: 5
+ 2 AuthorsUroš Maver16
Estimated H-index: 16