Fumigant toxicity and biochemical properties of (α + β) thujone and 1, 8-cineole derived from Seriphidium brevifolium volatile oil against the red imported fire ant Solenopsis invicta (Hymenoptera: Formicidae)

Sampling efficacy for the red imported fire ant Solenopsis invicta (Hymenoptera: Formicidae).

Cost-effective detection of invasive ant colonies before establishment in new ranges is imperative for the protection of national borders and reducing their global impact. We examined the sampling efficiency of food-baits and pitfall traps (baited and nonbaited) in detecting isolated red imported fire ant (Solenopsis invicta Buren) nests in multiple environments in Gainesville, FL. Fire ants d...

Solenopsis Invicta Virus (sinv-1) Infection and Insecticide Interactions in the Red Imported Fire Ant (hymenoptera: Formicidae)

Raft Formation by the Red Imported Fire Ant, Solenopsis invicta

The raft behavior of the invasive red imported fire ant, Solenopsis invicta Buren (Hymenoptera: Formicidae), has been documented for over a century. However, no rigorous tests have been performed elucidating the structure, limits, and important characteristics of this behavior. Rafting makes S. invicta competitive in both native and foreign environments. Further understanding of this behavior w...

PHYSIOLOGICAL ECOLOGY Excretion of Phosphoric Acid by Red Imported Fire Ants, Solenopsis invicta Buren (Hymenoptera: Formicidae)

Food sources,mineral redistribution, and excreta are someof theways ants enrich their mound environment. Phosphorus excretion has not been reported in red imported Þre ants, Solenopsis invicta Buren. QuantiÞcation of phosphoric acid in worker fecal droplets and larval anal liquid of S. invicta was performed. Phosphoric acid was trimethylsilylated using N,O-bis(trimethylsilyl)trißuoroacetamide, ...

Infection characteristics of Solenopsis invicta virus 2 in the red imported fire ant, Solenopsis invicta.

Solenopsis invicta virus 2 (SINV-2) is the second virus identified from the fire ant, S. invicta Buren. SINV-2 is unique among positive-strand RNA viruses from insects by possessing four cistrons in a monopartite genome. Fire ant colonies testing positive for SINV-2 by RT-PCR did not exhibit any discernable symptoms. RT-PCR-based surveys for SINV-2 among 688 fire ant mounds in Alachua County, F...