Impact of the Red Imported Fire Ant, Solenopsis invicta (Hymenoptera: Formicidae), on the Growth and Yield of Soybeans1

Adams, C. T.; Banks, William A.; Lofgren, C. S.; Smittle, B. J.; Harlan, D. P.

doi:10.1093/jee/76.5.1129

Cited by 27 publications

(20 citation statements)

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“…It has been suggested that decreased yield is attributable to mound interference with harvesting and to Þre ant damage to germinating seeds, resulting in fewer plants per row . Direct feeding on leaves, stems, or ßowers of mature soybean plants has not been observed; however, results of 32 P radioisotope studies indicate that the Þre ant might feed on some part of the mature soybean plant Adams et al 1983). Our data indicate that Þre ants signiÞcantly reduce soybean root growth and inhibit nitrogen Þxing nodule formation.…”

Section: Discussionmentioning

confidence: 55%

Characterizing the Interaction Between Fire Ants (Hymenoptera: Formicidae) and Developing Soybean Plants

Shatters

Meer

2000

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This research characterizes the interaction between the fire ants Solenopsis invicta Buren and developing soybean plants. Phagostimulant studies showed that fire ant foraging on soybean seeds increased once the seeds imbibed water. During seedling development over a 5-d germination period, fire ant foraging shifted from the stem/cotyledons to the roots, despite continual increases in fresh weights for each region, and the fact that stem/cotyledon tissue contained the majority of food reserves. Carbohydrate analysis showed that although 2-d-old seedlings had higher concentrations of phagostimulant carbohydrates, especially sucrose, than tissues of mature plants, all tissues analyzed had enough of these sugars to induce a phagostimulant response. Fire ant association with seeds/seedlings germinated in soil resulted in reduced seedling vigor, as determined by a doubling of seedling emergence time, a threefold increase in malformed seedlings, and visible damage to cotyledons. Seeds germinated and grown to mature plants in association with fire ants, allocated 43% more assimilate into pods, but produced 28% less root dry matter, 11% less total dry matter, and there was an 81% reduction in the number of root nodules compared with control plants. We propose that reduced root development and inhibitions of nodule formation would be major yield limiting factors under field conditions. This work demonstrates that fire ant damage to soybeans is not limited to seedling establishment and that more research should be directed at the subterranean activities of the fire ant.

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Section: Discussionmentioning

confidence: 55%

Characterizing the Interaction Between Fire Ants (Hymenoptera: Formicidae) and Developing Soybean Plants

Shatters

Meer

2000

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“…Previous studies with fenoxycarb baits have shown signiÞcant reductions of Þre ant population indices as early as 4 wk posttreatment, with up to 95% mound mortality by 12 to 13 wk posttreatment (Adams et al 1983(Adams et al , 1988Callcott and Collins 1992). However, faster effects of Logic bait may have been attributed in part to its formulation at 1% fenoxycarb, compared with 0.5% methoprene in Extinguish (Hung 1974, Cokendolpher andPhillips 1989).…”

Section: Table 3 Results Of the Means-separation Tests For One-way Amentioning

confidence: 99%

Efficacy of Broadcast and Perimeter Applications of S-Methoprene Bait on the Red Imported Fire Ant in Grazed Pastures

Aubuchon

Mullen

Eubanks

2006

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The red imported fire ant, Solenopsis invicta (Buren), is a major pest in the United States because of its painful sting. Toxic bait has been an important management tool against fire ants, but site registrations prohibit applications of most baits on grazed pastures. Extinguish, containing the insect growth regulator methoprene, was selected for this study because it has a broad site registration that includes grazed pastures. The primary objective of this research was to evaluate the efficacy for control of red imported fire ants by using broadcast applications of methoprene bait at a label rate of 1,121 g/ha versus applications around the perimeter of a target area at the reduced rate of 280 g/ha. Grazed pastures in Lee County, Alabama, and Chambers County, Alabama, were selected for this study, with broadcast treatments, perimeter treatments, and controls replicated three times at each site. All mounds were counted and rated using the USDA population index before applications and then at 8 and 16 wk posttreatment. Perimeter applications did not significantly reduce S. invicta mound abundance, but bait treatments significantly reduced mound abundance at 16 wk posttreatment at site 1 where applications were conducted in early evening. However, broadcast applications were not effective at site 2 where treatments were conducted in early morning with warmer temperatures. Emergence of winged alates was observed at 12 wk posttreatment, followed by a high density of incipient mounds that may have masked the full treatment effect of methoprene applications at site 2. Methoprene bait was effective in reducing abundance of S. invicta only when full label rates were applied.

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“…In experimental plots of soya beans in Gainesville, Florida and Gulfport, Mississippi, Adams et al . () recorded yield losses of 33% at Gainesville and 20% at Gulfport. Potatoes. In a commercial potato field in the Hastings area of north‐eastern Florida, assessments by Adams et al .…”

Section: Plant Industriesmentioning

confidence: 99%

“…Red Imported Fire Ant damages soya bean crops primarily by destroying germinating seeds and seedlings. In experimental plots of soya beans in Gainesville, Florida and Gulfport, Mississippi, Adams et al (1983) recorded yield losses of 33% at Gainesville and 20% at Gulfport.…”

Section: Plant Industriesmentioning

confidence: 99%

Red Imported Fire Ant in Australia: What if we lose the war?

Wylie¹,

Janssen-May²

2016

Eco Management Restoration

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Summary In Australia, a national eradication programme for the Red Imported Fire Ant (Solenopsis invicta Buren), one of the world's most invasive species, has been in operation since 2001 when the pest was first detected in Brisbane, Queensland. Since that time, four separate incursions of this ant have been successfully eradicated from this country, but the main Brisbane population remains. Cost‐benefit analyses already conducted put the likely impact of Red Imported Fire Ant in Australia, if not eradicated, at between A$8.5 and A$45 billion. Despite this, ongoing funding for the eradication programme is not assured. A recent external review has concluded that it remains technically feasible, cost beneficial and in the national interest to eradicate. In support of previous analyses, our study highlights some of the potential impacts of Red Imported Fire Ant in Australia in more detail and provides case examples. Results show that adverse impacts are likely in most sectors of the economy, and will be felt not only by agricultural industries, but also the building and construction, tourism, electrical and communications industries. In addition to industry effects, there will also be negative impacts on public health and lifestyle, the environment and infrastructure such as main roads, airports and schools. Our estimates of potential cost impacts in the case examples where extrapolation was possible exceed A$1.65 billion/year and support previous predictions. We conclude that increased spending is justified to avert ‘invasion debt’ – the future cost of battling pests that escape today. This is a war that Australia cannot afford to lose.

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Impact of the Red Imported Fire Ant, Solenopsis invicta (Hymenoptera: Formicidae), on the Growth and Yield of Soybeans1

Cited by 27 publications

References 0 publications

Characterizing the Interaction Between Fire Ants (Hymenoptera: Formicidae) and Developing Soybean Plants

Characterizing the Interaction Between Fire Ants (Hymenoptera: Formicidae) and Developing Soybean Plants

Efficacy of Broadcast and Perimeter Applications of S-Methoprene Bait on the Red Imported Fire Ant in Grazed Pastures

Red Imported Fire Ant in Australia: What if we lose the war?

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