Toxicity and Sublethal Effect of Triflumezopyrim Against Red Imported Fire Ant (Hymenoptera: Formicidae)

2020 ◽  
Vol 113 (4) ◽  
pp. 1753-1760 ◽  
Author(s):  
Lei Wang ◽  
Fei Zhao ◽  
Qiuhong Tao ◽  
Jiayi Li ◽  
Yijuan Xu ◽  
...  
Keyword(s):  
Food Consumption ◽  
Sublethal Effects ◽  
Fire Ants ◽  
Fire Ant ◽  
Red Imported Fire Ant ◽  
Invasive Ants ◽  
Sugar Water ◽  
Imported Fire Ants ◽  
Red Imported Fire Ants ◽  
Imported Fire Ant

Abstract The use of insecticide remains the frontline method in controlling red imported fire ant (Solenopsis invicta Buren) (Hymenoptera: Formicidae), one of the worst invasive ants in the world. Neonicotinoids are effective ingredients in toxic baits for suppressing S. invicta population. To search for new and effective insecticides, the toxicity and sublethal effects of triflumezopyrim, a novel neonicotinoid analog, were evaluated against S. invicta. No high mortality of ants was observed after they fed on sugar water containing 120 μg/ml triflumezopyrim for 72 h; however, 100% mortality was achieved after ants fed on sugar water containing 10 μg/ml triflumezopyrim for 2 wk. Furthermore, at 10 μg/ml, triflumezopyrim did not inhibit ant food consumption within the 7-d treatment period. These results indicate that triflumezopyrim is a slow acting toxin and may be qualified as bait toxin for managing red imported fire ants. At 1 μg/ml, triflumezopyrim did not cause any significant effect on colony growth within 56 d and did not inhibit the food consumption during the whole trial period. At 10 μg/ml, triflumezopyrim displayed a significant reduction of aggressiveness during confrontation with native ants, resulting in higher mortality than the ants in the control. However, at 1 μg/ml, triflumezopyrim did not show any significant impact on both aggressiveness and mortality of the red imported fire ants.

scholarly journals Red Imported Fire Ants and Their Impacts on Wildlife

EDIS ◽  
2006 ◽  
Vol 2006 (8) ◽  
Author(s):  
Emma Willcox ◽  
William M. Giuliano
Keyword(s):  
Solenopsis Invicta ◽  
Fire Ants ◽  
Fire Ant ◽  
Red Imported Fire Ant ◽  
Solenopsis Geminata ◽  
Wildlife Ecology ◽  
Imported Fire Ants ◽  
Red Imported Fire Ants ◽  
Imported Fire Ant

Two species of fire ant are found in Florida, the notorious red imported fire ant (RIFA; Solenopsis invicta; Figure 1) and the less common native fire ant (Solenopsis geminata). This document is WEC 207 and one of a series of the Department of Wildlife Ecology and Conservation, UF/IFAS Extension. First published: April 2006.

Effects of Repeated Use of Fenoxycarb and Hydramethylnon Baits on Nontarget Ants

1998 ◽  
Vol 33 (2) ◽  
pp. 212-220 ◽  
Author(s):  
A. A. Zakharov ◽  
L. C. Thompson
Keyword(s):  
Solenopsis Invicta ◽  
Integrated Management ◽  
Fire Ants ◽  
Fire Ant ◽  
Red Imported Fire Ant ◽  
Solenopsis Invicta Buren ◽  
Repeated Use ◽  
Imported Fire Ants ◽  
Ant Diversity ◽  
Imported Fire Ant

Sites receiving repeated broadcast applications of fenoxycarb and hydramethylnon baits for red imported fire ant, Solenopsis invicta Buren, control were examined for impact of bait treatments on ant diversity in southeastern Arkansas. Ants collected from sugar baits belonged to three subfamilies and 25 species. As compared with checks, native ant species increased on fenoxycarb-treated plots and decreased on hydramethylnon-treated plots. Except for S. invicta, ants within the subfamily Myrmicinae practically disappeared from hydramethylnon-treated plots. Sensitivity of ants in the subfamilies Formicinae and Dolichoderinae to hydramethylnon and fenoxycarb was comparatively low. As a consequence, fenoxycarb shows promise for the integrated management of imported fire ants when broadcast applications are desirable.

Impacts of Red Imported Fire Ants (Hymenoptera: Formicidae) on Striped Pine Scale (Homoptera: Coccidae) Populations

1996 ◽  
Vol 31 (3) ◽  
pp. 229-239 ◽  
Author(s):  
Stephen R. Clarke ◽  
Gary L. DeBarr
Keyword(s):  
Pinus Taeda ◽  
Scale Insect ◽  
Fire Ants ◽  
Red Imported Fire Ant ◽  
Loblolly Pines ◽  
Solenopsis Invicta Buren ◽  
Pinus Taeda L ◽  
Imported Fire Ants ◽  
Red Imported Fire Ants ◽  
Imported Fire Ant

Loblolly pines, Pinus taeda L., were banded in three seed orchards in Georgia to prevent the red imported fire ant, Solenopsis invicta (Buren), from tending infestations of striped pine scales, Toumeyella pini (King). Ant activity had no effect on female scale insect survival as numbers per shoot were never significantly different between check and banded trees in any of the orchards. Parasitism of females rarely differed between treatments, with higher rates twice in one orchard on unbanded trees and once in another orchard on banded trees. There also appeared to be no treatment effects on predator numbers. Coincident populations of the mealybug Oracella acuta (Lobdell) and the woolly pine scale, Pseudophilippia quaintancii Cockerell, on the shoots also were unaffected by the presence of fire ants.

scholarly journals Toxicity and Sublethal Effects of Autumn Crocus (Colchicum autumnale) Bulb Powder on Red Imported Fire Ants (Solenopsis invicta)

Toxins ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 731
Author(s):  
Sukun Lin ◽  
Deqiang Qin ◽  
Yue Zhang ◽  
Qun Zheng ◽  
Liupeng Yang ◽  
...  
Keyword(s):  
Solenopsis Invicta ◽  
Walking Speed ◽  
Sublethal Effects ◽  
Fire Ants ◽  
Sugar Water ◽  
Colchicum Autumnale ◽  
Imported Fire Ants ◽  
Red Imported Fire Ants ◽  
Sublethal Concentrations ◽  
Autumn Crocus

Autumn crocus (Colchicum autumnale L.) is a medicinal plant as it contains high concentrations of colchicine. In this study, we reported that the ground powder of autumn crocus bulb is highly toxic to invasive Solenopsis invicta Buren, commonly referred to as red imported fire ants (RIFAs). Ants fed with sugar water containing 5000 mg/L of bulb powder showed 54.67% mortality in three days compared to 45.33% mortality when fed with sugar water containing 50 mg/L of colchicine. Additionally, the effects of short-term feeding with sugar water containing 1 mg/L of colchicine and 100 mg/L of autumn crocus bulb powder were evaluated for RIFAs’ colony weight, food consumption, and aggressiveness, i.e., aggregation, grasping ability, and walking speed. After 15 days of feeding, the cumulative colony weight loss reached 44.63% and 58.73% due to the sublethal concentrations of colchicine and autumn crocus bulb powder, respectively. The consumption of sugar water and mealworm (Tenebrio molitor L.) was substantially reduced. The aggregation rates decreased 48.67% and 34.67%, grasping rates were reduced to 38.67% and 16.67%, and walking speed decreased 1.13 cm/s and 0.67 cm/s as a result of the feeding of the two sublethal concentrations of colchicine and autumn crocus bulb powder, respectively. Our results for the first time show that powder derived from autumn crocus bulbs could potentially be a botanical pesticide for controlling RIFAs, and application of such a product could be ecologically benign due to its rapid biodegradation in the environment.

Rate of Removal of Fenoxycarb (Logic®) Fire Ant Bait by Red Imported Fire Ants (Hymenoptera: Formicidae) from Treated Pastures

1996 ◽  
Vol 31 (1) ◽  
pp. 20-32 ◽  
Author(s):  
J. Scott Ferguson ◽  
Alan J. Hosmer ◽  
Michael E. Green
Keyword(s):  
Field Studies ◽  
Fire Ants ◽  
Fire Ant ◽  
Paspalum Notatum ◽  
Minimal Risk ◽  
Red Imported Fire Ant ◽  
Effective Population ◽  
Solenopsis Invicta Buren ◽  
Imported Fire Ants ◽  
Red Imported Fire Ants

Field studies were conducted in Vero Beach, FL, in November 1993 and 1994 to determine the rate of removal of Logic® fire ant bait by red imported fire ants, Solenopsis invicta Buren, from treated improved pastures of bahiagrass, Paspalum notatum Fluegge. Logic® fire ant bait was applied at the maximum label rate of 1.68 kg/ha (16.8 g ai/ha). In 1993, fire ants had removed approximately 35% of the granules by 4 h after application and about 67% by 12 h. By 24 h, 82% had been removed. By the last count (48 h after application) about 95% had been removed. In 1994, the granules were removed slightly faster, with about 60% removed by 4 h and 92% by 24 h after application. Nearly 97% of the granules had been removed by the last count (30 h after application). In 1993, several mounds of the ant, Dorymyrmex bureni Trager, were found in the test area while in 1994 only red imported fire ant mounds were present. The results indicate that Logic® fire ant bait is found and harvested very rapidly by fire ant workers under favorable foraging conditions and that a dose which will provide effective population reduction can be obtained in 12 to 24 h after application at 1.68 kg/ha. Additionally, with its low use rate, specificity to certain insects and rapid removal by fire ants, Logic® fire ant bait when used according to label poses minimal risk to non-target organisms.

Wildfire Impacts on Red Imported Fire Ant Captures Around Forest Ponds in the Lost Pines Ecoregion of Texas

2013 ◽  
Vol 4 (1) ◽  
pp. 129-133 ◽  
Author(s):  
Donald J. Brown ◽  
Devin B. Preston ◽  
Emrah Ozel ◽  
Michael R.J. Forstner
Keyword(s):  
High Intensity ◽  
Tree Mortality ◽  
Canopy Cover ◽  
Fire Ant ◽  
Red Imported Fire Ant ◽  
Bufo Houstonensis ◽  
Imported Fire Ants ◽  
Red Imported Fire Ants ◽  
Imported Fire Ant ◽  
Overstory Tree

Abstract The impacts of high-intensity wildfires on red imported fire ant Solenopsis invicta abundances in forest systems are currently unknown. The purpose of this study was to evaluate the effects of a high-intensity wildfire around pond edges on red imported fire ant captures in the Lost Pines ecoregion of Texas, which provides habitat for most of the remaining endangered Houston toads Bufo houstonensis. The red imported fire ant is a known predator of Houston toads, and thus there is interest in understanding the potential and realized impacts of this species on Houston toad survivorship. Our results suggest the wildfire did not directly impact captures-per-unit-effort, but it had indirect positive impacts through reductions in canopy cover due to overstory tree mortality. The results of this study indicate that both area occupied by red imported fire ants and site-specific red imported fire ant densities could increase dramatically in the Lost Pines as a result of the wildfire and subsequent human-based recovery efforts.

Hymenopteran Pests: Family Formicidae

2020 ◽  
pp. 317-331
Author(s):  
Patricia J. Vittum
Keyword(s):  
United States ◽  
Sandy Soils ◽  
The United States ◽  
Fire Ants ◽  
Fire Ant ◽  
Red Imported Fire Ant ◽  
The Many ◽  
Surrounding Areas ◽  
Water Holding ◽  
Imported Fire Ant

This chapter explores the many species of ants, order Hymenoptera, family Formicidae, which invade turfgrass areas throughout the United States. The subfamily Formicinae includes many ants found on turf. The fire ants are by far the most important and common pest ants of turfgrass in the southeastern states. Ants are primarily troublesome in turfgrass areas because they build mounds as they form subterranean homes for their colonies. They seek out drier, well-drained sandy soils that have low water-holding capacity. The galleries they form, which damage roots, add to the desiccation of the soil, and the turf in the surrounding areas becomes thin and unsightly. Mounds of various sizes and shapes, formed according to the habits of the ant species, are often detrimental to mower blades. The chapter then looks at the red imported fire ant, the turfgrass ant, and the harvester ant.

scholarly journals Naturally Occurring Compounds/Materials as Alternatives to Synthetic Chemical Insecticides for Use in Fire Ant Management

Insects ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 758
Author(s):  
Jian Chen ◽  
David H. Oi
Keyword(s):  
Solenopsis Invicta ◽  
Fire Ants ◽  
Fire Ant ◽  
Red Imported Fire Ant ◽  
Natural Toxins ◽  
Naturally Occurring ◽  
Solenopsis Invicta Buren ◽  
In Fire ◽  
Imported Fire Ant ◽  
Made In

The invasive red imported fire ant, Solenopsis invicta Buren (hereafter, fire ants), is a significant threat to public health and a danger to livestock, pets and wildlife due to their venomous stings. The fire ant has invaded many countries and regions and has become a globally significant pest. The current major tool to manage fire ants are synthetic insecticides that are used largely as stomach poisons in bait products or contact insecticides in spray, broadcast, drench, and dust products for area and nest treatments. In addition to these insecticide products, repellants and fumigants can also be useful in some unique scenarios. The ever-increasing public concern about the potential adverse effects of synthetic insecticides on health and the environment has been a driving force for searching for safer alternatives to control fire ants. Tremendous effort has been made in developing biologically-based control for managing fire ants; however, natural products continue to be one of the most attractive sources of safe alternatives to synthetic insecticides. Here, we summarized the synthetic insecticides that are currently used in managing fire ants, available alternative products in the current market, and academic efforts in searching for fire ant natural toxins, repellants and fumigants.

scholarly journals Insecticidal Activity of the Soil in the Rhizosphere of Viburnum odoratissimum against Solenopsis invicta (Hymenoptera: Formicidae)

Sociobiology ◽  
2017 ◽  
Vol 64 (1) ◽  
pp. 1 ◽  
Author(s):  
Yue Zhang ◽  
Jiantao Fu ◽  
Conglin Huang ◽  
Dongmei Cheng ◽  
Rilin Huang ◽  
...  
Keyword(s):  
Insecticidal Activity ◽  
Solenopsis Invicta ◽  
Sublethal Effects ◽  
Fire Ant ◽  
Red Imported Fire Ant ◽  
Insecticidal Effect ◽  
Ability Tests ◽  
Viburnum Odoratissimum ◽  
Imported Fire Ant ◽  
Insecticidal Plants

Methyl salicylate produced by Viburnum odoratissimum is known to exert lethal or sublethal effects on insects. Replacing conventional pesticides with insecticidal plants is necessary for environmental protection. We evaluated the behavioral and toxicological responses of the red imported fire ant (RIFA Solenopsis invicta)( Hymenopter: Buren Formicidae) at different soil depths in the rhizosphere of V. odoratissimum. Results of insecticidal activity bioassays indicated that the mortality for minor and major ants in soil at depths of 0-10 cm at days 11 and 12 both ranged from 68.75% to 100.00%, with repellent rates of 83.54%–100.00% and 85.31%–100.00%, respectively. In behavioral ability tests, 85.45%–100.00% of minor ants and 86.74%–94.85% of major ants lost their ability to grasp after nine days, with crawl rates at only 0.00%–29.25% and 0.00%–55.77%, respectively. Therefore, we conclude from the result that the soil under V. odoratissimum at depths of 0-10 cm exhibited excellent insecticidal effect in controlling RIFA.Methyl salicylate produced by Viburnum odoratissimum is known to exert lethal or sublethal effects on insects. Replacing conventional pesticides with insecticidal plants is necessary for environmental protection. We evaluated the behavioral and toxicological responses of the red imported fire ant (RIFA Solenopsis invicta, Buren) (Hymenoptera: Formicidae) at different soil depths in the rhizosphere of V. odoratissimum. Results of insecticidal activity bioassays indicated that the mortality for minor and major ants in soil at depths of 0-10 cm at days 11 and 12 both ranged from 68.75% to 100.00%, with repellency rates of 83.54%-100.00% and 85.31%-100.00%, respectively. In behavioral ability tests, 85.45%-100.00% of minor ants and 86.74%-94.85% of major ants lost their ability to grasp after nine days, with crawling rates at only 0.00%-29.25% and 0.00%-55.77%, respectively. Therefore, we conclude from the result that the soil under V. odoratissimum at depths of 0-10 cm exhibited excellent insecticidal effect in controlling RIFA.

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