Effect of Delayed Toxicity of Chemical Barriers to Control Argentine Ants (Hymenoptera: Formicidae)

Soeprono, Andrew M.; Rust, Michael Κ.

doi:10.1093/jee/97.6.2021

Cited by 13 publications

(10 citation statements)

References 20 publications

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“…Fipronil is widely used as a spray because its delayed toxicity enables horizontal transfer from foraging ants [32,33]. Fipronil also shows promise as a potential bait toxicant for reducing populations of Argentine ants.…”

Section: Discussionmentioning

confidence: 99%

Insecticide transfer efficiency and lethal load in Argentine ants

Hooper‐Bùi

Kwok

Buchholz

et al. 2015

Nuclear Instruments and Methods in Physics Research Section B:

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Trophallaxis between individual worker ants and the toxicant load in dead and live Argentine ants (Linepithema humile) in colonies exposed to fipronil and hydramethylnon experimental baits were examined using accelerator mass spectrometry (AMS). About 50% of the content of the crop containing trace levels of 14C-sucrose, 14C-hydramethylnon, and 14C-fipronil was shared between single donor and recipient ants. Dead workers and queens contained significantly more hydramethylnon (122.7 and 22.4 amol/μg ant, respectively) than did live workers and queens (96.3 and 10.4 amol/μg ant, respectively). Dead workers had significantly more fipronil (420.3 amol/μg ant) than did live workers (208.5 amol/μg ant), but dead and live queens had equal fipronil levels (59.5 and 54.3 amol/μg ant, respectively). The distribution of fipronil differed within the bodies of dead and live queens; the highest amounts of fipronil were recovered in the thorax of dead queens whereas live queens had the highest levels in the head. Resurgence of polygynous ant colonies treated with hydramethylnon baits may be explained by queen survival resulting from sublethal doses due to a slowing of trophallaxis throughout the colony. Bait strategies and dose levels for controlling insect pests need to be based on the specific toxicant properties and trophic strategies for targeting the entire colony.

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Section: Discussionmentioning

confidence: 99%

Insecticide transfer efficiency and lethal load in Argentine ants

Hooper‐Bùi

Kwok

Buchholz

et al. 2015

Nuclear Instruments and Methods in Physics Research Section B:

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“…Given that fipronil is a broad spectrum insecticide that affects the insect nervous system, the low susceptibility of dark rover ants to it was unexpected. In previous studies, ants are usually highly susceptible to barrier treatments using this insecticide [ 8 , 9 , 10 ]. Variation in the susceptibility of ants to fipronil was reported by Hannum and Miller [ 11 ] who tested this insecticide against the black carpenter ant ( Camponotus pennsylvanicus ).…”

Section: Discussionmentioning

confidence: 99%

“…Choe and Rust [ 17 ] found no significant transfer of indoxacarb among Argentine ants exposed to treated sand. On the other hand, there is evidence of the capacity of fipronil, to be transferred among ants after contact exposure [ 8 , 17 ]. On our experiment, the progression of mortality of ants exposed to fipronil closely resembled that of the ants in the control treatment.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Liquid and Bait Insecticides against the Dark Rover Ant (Brachymyrmex patagonicus)

Miguelena¹,

Baker²

2014

Insects

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Dark rover ants (Brachymyrmex patagonicus, Mayr) are an exotic ant species native to South America that has recently spread through the southern US. We evaluated the residual activity of three liquid insecticides (indoxacarb, fipronil and lambda-cyhalothrin) as potential barrier treatments against these ants. The factors we considered include the use of a porous or non-porous surface, a short or long exposure time and the changes in insecticide activity after treatment during a 90 day period. We also tested the effect of baits containing three different active ingredients (imidacloprid, sodium tetraborate and indoxacarb) on colony fragments of this species for a 15 day period. Both lambda-cyhalothrin® and indoxacarb® resulted in high levels of ant mortality up to 90 days after application. The results of exposure to fipronil® resembled those from the control treatment. Application of insecticides on a porous surface and the shorter exposure time generally resulted in greater ant survival. Of the baits tested, only the imidacloprid based one decreased ant survival significantly during the evaluation period. Within three days, the imidacloprid bait produced over 50% mortality which increased to over 95% by the end of the experiment. Results from the other two bait treatments were not significantly different from the control.

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“…For each treatment, replicate disks together with controls (no pesticide treatment) were retrieved before each simulated precipitation event and tested for residual ant toxicity using a method similar to that in Soeprono et al . In general, 10–15 L. humile worker ants were individually aspirated from a laboratory colony into a plastic container (8 cm diameter) using an air compressor (Emerson Motor Division, St. Louis, MO, USA).…”

Section: Methodsmentioning

confidence: 99%