Response of the Formosan Subterranean Termites (Isoptera: Rhinotermitidae) to Baits or Nonrepellent Termiticides in Extended Foraging Arenas

  title={Response of the Formosan Subterranean Termites (Isoptera: Rhinotermitidae) to Baits or Nonrepellent Termiticides in Extended Foraging Arenas},
  author={Nan-Yao Su},
  • N. Su
  • Published 1 December 2005
  • Biology
Abstract Distance effects of three treatments, noviflumuron, fipronil, and thiamethoxam, against laboratory populations of the Formosan subterranean termite, Coptotermes formosanus Shiraki, were tested in extended foraging arenas with foraging distances of 50 m. The results showed that during the 10-wk test period, all termites were killed by noviflumuron baits, whereas the nonrepellent termiticides fipronil and thiamethoxam divided the laboratory populations into two groups after causing 25–35… 

Molting drives mortality in foraging populations of Formosan subterranean termites (Isoptera: Rhinotermitidae) baited with a chitin synthesis inhibitor, noviflumuron.

This study shows that, with the exception of successful molting events during the first 10 days after baiting, mortality among workers is inevitable in the next molt with lethal doses of noviflumuron.

Effects of a Fipronil Spot Treatment on Field Colonies of Coptotermes formosanus (Isoptera: Rhinotermitidae)

The Formosan subterranean termite may not be a good candidate for the exterior perimeter and localized interior treatment label option because of the large range and size of the colony.

Temporal Assessment of Molting in Workers of Formosan Subterranean Termites (Isoptera: Rhinotermitidae)

Information from this study suggests that time to molt is an important component of total time for eliminating colonies treated with CSI baits and reduction in time lapse between two consecutive molts may reduce the time required for colony elimination.

Molting site fidelity accounts for colony elimination of the Formosan subterranean termites (Isoptera: Rhinotermitidae) by chitin synthesis inhibitor baits

A previously undiscovered behavior of molting termites and the mechanics behind a successful arsenal; noviflumuron baits used against subterranean termites are revealed.

Molting Site Fidelity in Workers of Formosan Subterranean Termites (Isoptera: Rhinotermitidae)

The molting site fidelity by workers in a colony ensures that speeding up the time for mortality induced by chitin synthesis inhibitor (CSI) baits will not result in an inhibitory cascade of dead termites around the bait stations.

Response of the Formosan Subterranean Termite to Neighboring Con-Specific Populations After Baiting With Noviflumuron

Experiments in planar arenas in which one population of C. formosanus was baited resulted in elimination of baited termites and subsequent reinvasion of territory by neighboringTermites, and Territories held by unbaited neighboring termites increased significantly, nearly doubling after reinvasions.

Tunneling responses of the asian subterranean termite, Coptotermes gestroi in termiticide-treated sand (Isoptera: Rhinotermitidae)

It is suggested that termiticide properties (repellent or non-repellant) may be dependent on the concentrations of the termiticides used.

Planar Arenas for use in Laboratory Bioassay Studies of Subterranean Termites (Rhinotermitidae)

The result of this study showed that groups of termites kept in planar arenas had better vigor and survivorship after 60 d than groups kept in Petri dishes.

Feeding Preference of Coptotermes formosanus (Isoptera: Rhinotermitidae) for Gamma-Irradiated Wood Impregnated with Benzoylphenylurea Compounds Under Laboratory Conditions

Results suggest that gamma-irradiated C. japonica wood, which is locally abundant in Japan, may have potential as a bait substrate for benzoylphenylurea compounds.

Effects of non-repellent termiticides on the tunneling and walking ability of the eastern subterranean termite (Isoptera: Rhinotermitidae).

Exposure of R. flavipes to several concentrations of commercial formulations of fipronil and indoxacarb significantly reduced termite walking and tunneling and the number of tunnel branches.



Time Trends in Mortality for Thiamethoxam and Fipronil Against Formosan Subterranean Termites and Eastern Subterranean Termites (Isoptera: Rhinotermitidae)

Time trends in mortality for the Formosan subterranean termite, Coptotermes formosanus Shiraki, and eastern subterraneantermite, Reticulitermes flavipes (Kollar), were determined, indicating that thiamethoxam is faster acting than fipronil.

Effects of exposure duration on transfer of nonrepellent termiticides among workers of Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae).

Recipient mortality indicated that exposure of donors to 1 ppm insecticide for 3, 6, 12, or 24 h, indicated that these exposures did not consistently lead to lethal transfer of the insecticides.

Toxicity, repellency, and horizontal transmission of fipronil in the formosan subterranean termite (Isoptera: Rhinotermitidae).

In topical application assays, fipronil was highly effective against both workers and soldiers at very low doses, and there was no significant horizontal transmission of fipronsil from treated workers to untreated soldiers.

Effect of Imidacloprid Soil Treatments on Occurrence of Formosan Subterranean Termites (Isoptera: Rhinotermitidae) in Independent Monitors

Periodic sampling of 30 independent monitors found that soil treated with imidacloprid did not measurably reduce C. formosanus populations adjacent to the treatments, and the model used to describe its effects did not seem to fit the liquid-bait model.

Effects of Sublethal Exposure to Imidacloprid on Subsequent Behavior of Subterranean Termite Reticulitermes virginicus (Isoptera: Rhinotermitidae)

If these laboratory results hold in the field and termites traveling through a zone of soil treated with imidacloprid are impaired but subsequently recover, they will be just as likely as their naive nestmates to reenter the treated area if their travels take them through the nonrepellent application a second time.

Comparison of eleven soil termiticides against the Formosan subterranean termite and eastern subterranean termite (Isoptera: Rhinotermitidae.

Soil treated with chlordane was most vulnerable to termite tunneling activity, and all nine pyrethroids tested were repellent at sublethal doses.

Exterior-targeted liquid termiticides: An alternative approach to managing subterranean termites (Isoptera: Rhinotermitidae) in buildings

It is shown that subterranean termite infestations can be eliminated by applying non-repellent liquid termiticides solely around the exterior perimeter of buildings, and effects extend inward and well beyond the exterior site of application.

Valuation of efficacy and nonrepellency of indoxacarb and fipronil-treated soil at various concentrations and thicknesses against two subterranean termites (Isoptera: Rhinotermitidae).

  • X. Hu
  • Biology
    Journal of economic entomology
  • 2005
Both insecticides demonstrated a delayed mode of activity and nonrepellency against the two termite species and were significantly more susceptible to indoxacarb than Formosan subterranean termites, but there was no intercolony differences in susceptibility to either insecticide.

Subterranean termite (Isoptera: Rhinotermidae) penetration into sand treated at various thicknesses with termiticides

Neither termite species penetrated sand containing ≥100 ppm termiticide, even when the treated barrier was only 0.15 cm thick, which caused higher mortality than other pyrethroid termiticides.

Foraging populations and territories of the Eastern subterranean termite (Isoptera : Rhinotermitidae) in Southeastern Florida

Foraging populations of colonies of the eastern subterranean termite, Reticulitermes flavipes (Kollar), were surveyed in residential and undeveloped environments of southeastern Florida and Habitat type was not correlated with foraging population size.