Journal of Economic Entomology (2006) 99, 134-140

Neil A. Spomer and Shripat T. Kamble (2006)
Temperature effect on kinetics of uptake, transfer, and clearance of [¹⁴C]Noviflumuron in eastern subterranean termites (Isoptera: Rhinotermitidae)
Journal of Economic Entomology 99 (1), 134-140
Abstract: [¹⁴C]Noviflumuron uptake, clearance, rate of excretion, and transfer from treated to untreated termite workers were evaluated at 15, 19, 23, and 27°C. Feeding units were constructed from plastic containers provisioned with washed sand, distilled water, [¹⁴C]noviflumuron-treated feeding discs (0.05 or 0.5% [AI]), and Reticulitermes flavipes (Kollar) workers. Feeding units were held in environmental growth chambers preset at 15, 19, 23, and 27°C. The amount of [¹⁴C]noviflumuron present within R. flavipes was measured by scintillation counting and subsequently quantified. Uptake of noviflumuron by R. flavipes workers at 15°C was ~ 2.8 times less than at 19 or 23°C and ~ 4.4 times less than at 27°C. The highest uptake of [¹⁴C]noviflumuron occurred at 27°C and 144 h. Most transfer of [¹⁴C]noviflumuron from treated to untreated termite workers occurred between 19 and 27°C. [¹⁴C]Noviflumuron had a half-life in R. flavipes workers of ~ 31-45 d, dependent on temperature. A higher amount of [¹⁴C]noviflumuron was lost through excretion at > 19°C (~15-22%) compared with 15°C (0.27%). Results indicated that increased uptake, transfer, and clearance of noviflumuron by R. flavipes occurred at warmer temperatures (19-27°C), and all of these processes were significantly lower at 15°C.
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Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Reticulitermes flavipes