Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/6042
Title: Development of a synthetic plant volatile-based attractant for female noctuid moths: III. Insecticides for adult 'Helicoverpa armigera' (Hübner) (Lepidoptera: Noctuidae)
Contributor(s): del Socorro, Alice  (author); Gregg, Peter  (author)orcid ; Hawes, Anthony J (author)
Publication Date: 2010
DOI: 10.1111/j.1440-6055.2009.00735.x
Handle Link: https://hdl.handle.net/1959.11/6042
Abstract: We investigated the efficacy of insecticides combined with a plant volatile-based attractant for 'Helicoverpa armigera' moths, under laboratory and field conditions. In the laboratory, 16 insecticides were assessed by the level of mortality and time to incapacitate and kill moths. The proboscis extension reflex technique was used for dosing moths. The pyrethroids, bifenthrin (only when synergised by the addition of piperonyl butoxide (PBO) but not without it) and cyfluthrin (with or without PBO), endosulfan, the carbamates methomyl and thiodicarb, and spinosad killed all moths tested at rates equivalent to, or less than, those which would be applied in cover sprays targeting larvae. The shortest time to moth incapacitation and death was observed with methomyl and thiodicarb. Spinosad produced very high mortality but moths took much longer to die. The two pyrethroids gave relatively slow kills, as did endosulfan. In a field trial, four insecticides were combined with the attractant and dead moths were collected daily from 1 to 4 days after application of the attracticide on 50 m rows of cotton. Significantly more dead moths ('H. armigera', 'H. punctigera' and other noctuids) were found near the rows treated with attracticide containing methomyl compared with spinosad, fipronil and deltamethrin. For determining the impact of attracticides by recovering dead moths, quick acting insecticides are required to prevent moths flying away from the treated area to locations where they cannot be found. Methomyl and thiodicarb are suitable for this, but other insecticides especially spinosad could be used where quick action is not needed. Large numbers of moths were killed in the field trial, suggesting that attracticides for female 'Helicoverpa' spp. moths could have significant impacts on local populations of these pests.
Publication Type: Journal Article
Source of Publication: Australian Journal of Entomology, 49(1), p. 31-39
Publisher: Wiley-Blackwell Publishing Asia
Place of Publication: Australia
ISSN: 1326-6756
1440-6055
Field of Research (FOR): 079902 Fertilisers and Agrochemicals (incl Application)
070308 Crop and Pasture Protection (Pests, Diseases and Weeds)
060201 Behavioural Ecology
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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