Efficacy of Maxforce Bait for Control of the Argentine Ant (Hymenoptera: Formicidae) in Haleakala National Park, Maui, Hawaii

Krushelnycky, Paul D.; Reimer, Neil J.

doi:10.1093/ee/27.6.1473

Cited by 29 publications

(18 citation statements)

References 9 publications

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“…Thus, light sensitivity may be offset if bait is rapidly harvested and stored after application. As reported for other pest ants (Krushelnycky and Reimer 1998, Klotz et al 2000, Silverman and Roulston 2003, we saw no difference in bait performance whether granules were scattered or distributed in clumps. Accordingly, it appears that P. chinensis adjust foraging behavior to resource availability regardless of bait placement.…”

Section: Discussionsupporting

confidence: 83%

“…P. chinensis workers are solitary foragers but exploit large immobile food resources using a unique behavior, tandem carrying, in which individual workers carry nestmates to food resources (Guenard and Silverman 2011). While the relative effectiveness of clumped versus scattered granular bait against mass-recruiting species has been investigated (Krushelnycky and Reimer 1998, Klotz et al 2000, Silverman and Roulston 2003, bait distribution procedures have not been explored against solitary foraging or tandem-carrying pest ants. Solitary foraging ant species may be less likely to retrieve discrete compared with scattered food (bait) sources.…”

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confidence: 99%

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Effect of Scattered and Discrete Hydramethylnon Bait Placement on the Asian Needle Ant

Rice¹,

Shik²,

Silverman³

2012

jnl. econ. entom.

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The Asian needle ant (Pachycondyla chinensis Emery) is invading natural and disturbed habitats across the eastern United States. While recent studies document the impact of P. chinensis on native ecosystems and human health, effective control measures remain unknown. Thus, we evaluated the field performance of a hydramethylnon granular bait, Maxforce Complete Granular Insect Bait, dispersed in clumps or scattered against P. chinensis. We also measured the effect of this bait on P. chinensis outside of the treatment zone. Surprisingly, unlike reports for other ant species, we achieved nearly complete P. chinensis population reductions 1 d after treatments were applied. Significant ant reductions were achieved until the end of our study at 28 d. No difference was recorded between clumped and scattered application methods. We found no overall difference in ant reductions from the edge out to 5 m beyond the treatment zone. Other local ant species appeared to be unaffected by the bait and foraging activity increased slightly after P. chinensis removal from treated areas. We suggest that Maxforce Complete Granular Insect Bait can be effective in an Asian needle ant treatment program.

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Section: Discussionsupporting

confidence: 83%

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confidence: 99%

Effect of Scattered and Discrete Hydramethylnon Bait Placement on the Asian Needle Ant

Rice¹,

Shik²,

Silverman³

2012

jnl. econ. entom.

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“…New entrances to ant colonies appear within 10 m of the original baited colony between a few days to several months after baiting, and other colonies may reappear within several months at the same site, showing that not all queens were killed [30]. Similar results with hydramethynon baits were reported for L. humile in Hawaii [9] and the lack of eradication was attributed to moldy bait, UV exposure and degradation of hydramthylnon, and the rapid speed of toxicity [9]. The difference in toxicant load between dead and live queens may also explain the resurgence of ants treated with hydramethylnon baits in the field.…”

Section: Discussionsupporting

confidence: 57%

“…It replaces native ant species in these environments, presenting a hazard to pollination of native plants, and represents a major threat to native animals through ecosystem degradation [7-9]. As an invading species, a colony can expand the local infested zone by 16 to 30 m per year in linear directions [2].…”

Section: Introductionmentioning

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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“…From an insect control perspective, this predicts that toxic baits should be more effective at controlling ant colonies when the baits are clumped. Two studies, Krushelnycky and Reimer (1998) and Klotz et al (2000), however, reported no differences in Argentine ant population reductions when hydramethylnon granules were scattered within the antsÕ foraging domain versus placed in piles or bait dispensers. Consequently, we investigated retrieval rates of clumped versus dispersed insecticide granules by Argentine ants in the laboratory to determine whether shifts in foraging strategy might be resource-dependent.…”

mentioning

confidence: 97%

Retrieval of Granular Bait by the Argentine Ant (Hymenoptera: Formicidae): Effect of Clumped Versus Scattered Dispersion Patterns

Silverman

Roulston

2003

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Argentine ants, Linepithema humile (Mayr), use mass recruitment foraging, with clumped prey items being retrieved more efficiently than dispersed prey. However, in prior field experiments, granular baits, whether dispensed in containers or broadly scattered, had a similar impact on Argentine ant populations. In laboratory experiments, granular insecticide bait was encountered faster by Argentine ant workers and more granules were initially returned to the colony when the granules were scattered versus clumped. After 2 h, granules from both dispersion patterns were retrieved equally. Our results suggest that Argentine ant colonies adjust their foraging patterns to resources of different quality (prey versus bait). Also, foraging activity patterns for bait in the laboratory are consistent with prior field results demonstrating no efficacy advantages to discrete granular bait placements.

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Efficacy of Maxforce Bait for Control of the Argentine Ant (Hymenoptera: Formicidae) in Haleakala National Park, Maui, Hawaii

Cited by 29 publications

References 9 publications

Effect of Scattered and Discrete Hydramethylnon Bait Placement on the Asian Needle Ant

Effect of Scattered and Discrete Hydramethylnon Bait Placement on the Asian Needle Ant

Insecticide transfer efficiency and lethal load in Argentine ants

Retrieval of Granular Bait by the Argentine Ant (Hymenoptera: Formicidae): Effect of Clumped Versus Scattered Dispersion Patterns

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