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Special Issue Editor

Prof. Dr. Jun-Hyung Tak

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Guest Editor

Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Republic of Korea
Interests: botanical insecticides; insecticide formulation; synergy; toxicity

Special Issue Information

Dear Colleagues,

Over the last couple of decades, we have been dedicating a large amount of attention and efforts to screening new and safer alternatives of synthetic insecticides to deal with the rapid increase of insecticide resistance by the insect pests in agricultural and public environments. Nonetheless, there is a lack of systemic and comprehensive studies on the efficacy of current management tools, especially conventional and commercial insecticide products.

Commercial insecticidal products consist of many other inert substances, and sometimes, those ‘inert’ materials can either show some effects on target insects or interact with the active ingredients. For example, hydrocarbon-based solvents in household aerosol insecticides can have a physical effect on mosquitoes by disrupting their flight and respiration, which also can be applied to resistant strains. On top of this, solvents may lower the surface tension of the pyrethroid insecticides to assist their cuticular penetration.

In this Special Issue, we’d like to invite leading research entomologists and formulation scientists to extend our knowledge on efficacy of insecticidal products in lab- and field-scale trials. Moreover, reviews on efficacy test guidelines are also welcome.

Prof. Jun-Hyung Tak
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Insects is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

insecticide
formulation
efficacy
resistant strain
test guideline
field trial
bioassay

Published Papers (2 papers)

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Research

Jump to: Review

10 pages, 3464 KiB

Open AccessArticle

Effect of Ingestion Exposure of Selected Insecticides on Coccinella septempunctata and Harmonia axyridis (Coleoptera: Coccinellidae)

by Jacek Piotr Twardowski, Michał Hurej and Kamila Twardowska

Insects 2021, 12(5), 434; https://0-doi-org.brum.beds.ac.uk/10.3390/insects12050434 - 11 May 2021

Cited by 3 | Viewed by 1760

Abstract

The sensitivity to thiacloprid and lambda-cyhalothrin ingested from prey organisms was studied in Coccinella septempunctata and Harmonia axyridis, since the effect of ingestion exposure to these insecticides is unknown in these species. All developmental stages of the ladybirds were fed on Acyrthosiphon pisum treated with half or full field rate of the insecticides. Almost all instars were killed within 3 h of the start of ingestion of lambda-cyhalotrin-treated prey. The action of thiacloprid was more extended in time in both coccinellids and more variable between their instars. Reducing the field rate of lambda-cyhalothrin seems to have no practical value for the survival of either of the coccinellid species. Contrastingly, using half instead of the full field rate of thiacloprid may enhance the chances of survival in L1, L2, and L4 larvae of both species. Of all developmental stages tested, the survival dynamics of the adults of either species are closest to one another, whereas the apparent difference in the species response to the dose rate of thiacloprid was found in the L4 stage. Full article

(This article belongs to the Special Issue Efficacy of Household and Agricultural Insecticides)

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Review

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24 pages, 2836 KiB

Open AccessReview

Toxicity of Insecticides and Miticides to Natural Enemies in Australian Grains: A Review

by Kathy Overton, Ary A. Hoffmann, Olivia L. Reynolds and Paul A. Umina

Insects 2021, 12(2), 187; https://0-doi-org.brum.beds.ac.uk/10.3390/insects12020187 - 22 Feb 2021

Cited by 13 | Viewed by 2960

Abstract

Continued prophylactic chemical control to reduce pest populations in Australian grain farming systems has limited the effectiveness of biological control via natural enemies in crops within an integrated pest management (IPM) framework. While a variety of data is available to infer potential non-target effects of chemicals on arthropod natural enemies, much of it may be irrelevant or difficult to access. Here, we synthesise the literature relevant to Australian grain crops and highlight current knowledge gaps for potential future investment. A range of testing methodologies have been utilised, often deviating from standardised International Organization for Biological Control (IOBC) protocols. Consistent with findings from over 30 years ago, research has continued to occur predominantly at laboratory scales and on natural enemy families that are easily reared or commercially available. There is a paucity of data for many generalist predators, in particular for spiders, hoverflies, and rove and carabid beetles. Furthermore, very few studies have tested the effects of seed treatments on natural enemies, presenting a significant gap given the widespread global use of neonicotinoid seed treatments. There is a need to validate results obtained under laboratory conditions at industry-relevant scales and also prioritise testing on several key natural enemy species we have identified, which should assist with the adoption of IPM practices and decrease the reliance on broad-spectrum chemicals. Full article

(This article belongs to the Special Issue Efficacy of Household and Agricultural Insecticides)

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