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

Su, Nan‐Yao

doi:10.1603/0022-0493-98.6.2143

Cited by 56 publications

(34 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…An extended foraging area composed of six planar arenas (24 × 24 cm and 1.4 cm thick), as described by Su, was used for this study. The planar arena was made of two clear sheets of Plexiglas® (24 × 24 cm) with a laminate spacer on four sides to maintain an inner space of 0.2 cm between the two sheets to allow movement of termites.…”

Section: Methodsmentioning

confidence: 99%

“…The planar arena was made of two clear sheets of Plexiglas® (24 × 24 cm) with a laminate spacer on four sides to maintain an inner space of 0.2 cm between the two sheets to allow movement of termites. The upper sheet of the planar arena had an access hole (0.5 cm diameter) on top, upon which a Plexiglas cup (4.5 cm diameter, 3 cm high) was fitted to form an introduction chamber for termites . The two sheets of Plexiglas and the laminate spacer were bolted together and the planar arena was filled with ∼ 80 g of oven‐dried moistened sand (65 g sand + 15 ml of sterile deionized water).…”

Section: Methodsmentioning

confidence: 99%

“…Five thousand workers (undifferentiated larvae of at least the third instar) + 750 soldiers from one colony were divided into six groups of ∼ 958 termites and each group was introduced to one of the six planar arenas as described by Su . Upon release, termites in each planar arena were provisioned with pieces of moist wood ( Picea sp.)…”

Section: Methodsmentioning

confidence: 99%

“…a–c), which are also formed during normal molting, however, when affected by noviflumuron, workers that attempt to molt die within the exuviae as they are not able to successfully complete molting . While workers remain in this posture, there is excessive grooming by their nestmates; as a result, the appendages (antennae and legs) of dead workers are consumed by nestmates, distinguishing them from normal molting workers . The data presented are for the weekly counts of molting workers and the inhibitory effect on molting.…”

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

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

Kakkar

2017

Pest Management Science

Self Cite

View full text Add to dashboard Cite

BACKGROUND: The lethal time of a chitin synthesis inhibitor (CSI)-baited colony of Coptotermes formosanus Shiraki largely depends on the time taken for workers to molt after consuming a lethal dose. Given that termite molting biology can regulate the time to elimination of a baited termite colony, the objective of this study was to determine how the fasting period (an important element of the worker molting cycle) and acquisition of the lethal dose can impact the total elimination period for a colony.RESULTS: Noviflumuron eliminated the foraging population over a 30 m-long foraging arena within 9 weeks. However, mortality in treatment groups did not begin until day 11. The 10-day lag post treatment corresponds to the fasting period during which workers to prepare for ecdysis on the 11th day, at which time mortality occurs due to the effect of CSI.CONCLUSION: 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. The 10-day fasting period can comprise at least 22% of a molt cycle (45 days for a fourth worker instar or lower), and can provide a window during which a worker escapes the effect of CSI bait, thereby extending the total time needed for elimination of a colony.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

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

Kakkar

2017

Pest Management Science

Self Cite

View full text Add to dashboard Cite

show abstract

“…In a laboratory study, the maximum mortality occurred within 1.5 m of the treated zone and the maximum effects 2.5 m from the treated zone (Saran and Rust, 2007). Su (2005) reported lethal transfer effects 5 m.…”

Section: Soil Treatments For Subterranean Termitesmentioning

confidence: 97%