Abstract
The beet webworm, Loxostege sticticalis L. is a very dangerous polyphagous insect pest. The beet webworm overwinters at the pronymphal stage. In some individuals, the diapause can last from the first generation to the next spring. The influence of 30-days-long exposure at temperatures of +5, +10, +15, +20, and +25°C on survival and subsequent reactivation of diapausing pronymphs of L. sticticalis has been investigated in laboratory conditions. The beet webworm was shown to be very thermotolerant: although the temperature of +5°C, as expected, was optimal for reactivation, the other thermal regimes did not cause a significant decrease in survival and in the proportion of individuals reactivated before the end of the experiment (in 120 days). These data suggest that the southern boundary of the geographical range of L. sticticalis is determined not by high winter temperatures, but rather by some other factors (possibly, by high summer temperatures).
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References
Afonin, A.N., Akhanaev, Yu.B., and Frolov, A.N., “The Range of the Beet Webworm Loxostege sticticalis L. (Lepidoptera, Pyraloidea: Crambidae) in the Former USSR Territory and Its Subdivision by the Number of Generations per Season,” Entomol. Rev. 94(2), 200–204 (2014).
Akhanaev, Yu.B., Berim, M.N., Jiang, X.F., Kutcherov, D.A., Luo, L.Z., Malysh, Yu.M., Reznik, S.Ya., Saulich, A.Kh., Sobolev, V.A., Tokarev, Yu.S., Frolov, A.N., and Zhang L., “Photoperiodic Reaction in the Beet Webworm Loxostege sticticalis L. (Lepidoptera, Pyraloidea: Crambidae) from Eastern and Western Parts of its Eurasian Range,” Entomol. Rev. 93(7), 814–818 (2013).
Alyokhin, V.T., “The Beet Webworm,” Zashch. Karant. Rast. 6, 71 (2002).
Danilevskii, A.S., Photoperiodism and Seasonal Development of Insects (Oliver and Boyd, Edinburgh, 1965).
Frolov, A.N., “The Beet Webworm Threatens Russian Agriculture,” Kartofel i Ovoschi 4, 28–29 (2012).
Frolov, A.N., Saulich, M.I., Malysh, Yu.M., and Tokarev, Yu.S., “The Beet Webworm: Cyclicality in Multi-Year Dynamics of Its Population Size,” Zashch. Karant. Rast. 2, 49–53 (2010).
Goryshin, N.I., Saulich, A.Kh., Volkovich, T.A., and Abdel-Khamid, M.A., “The Role of Temperature and Photoperiod in the Regulation of Development and Diapause of the Beet Webworm (Loxostege sticticalis),” Zool. Zh. 59(4), 533–545 (1980).
Goryshin, N.I., Saulich, A.Kh., Volkovich, T.A., and Shakhova, N.M., “An Experimental Analysis of the Seasonal Development of the Colorado Potato Beetle (Leptinotarsa decemlineata) in the Forest-Steppe Zone. 2. Field Experiments and Phenological Observations,” Zool. Zh. 65(4), 528–539 (1986).
Huang, S.H., Jiang, X.F., and Luo, L.Z., “Effects of Photoperiod and Temperature on Diapause Induction in the Beet Webworm Loxostege sticticalis Linnaeus (Lepidoptera: Pyralidae),” Acta Entomol. Sin. 52, 274–280 (2009).
Jiang, X.F., Huang, S.H., Luo, L.Z., Liu, Y., and Zhang, L., “Diapause Termination, Post-diapause Development and Reproduction in the Beet Webworm, Loxostege sticticalis (Lepidoptera: Pyralidae),” J. Insect Physiol. 56(9), 1325–1331 (2010).
Knorr, I.B., The Beet Webworm (Loxostege sticticalis) in Siberia (Novosibirsk, 2011) [in Russian].
Kozhanchikov, I.V., “Distribution and Annual Changes in the Abundance of the Turnip Moth and the Beet Webworm as Related to Heat and Humidity,” Zool. Zh. 20(1), 30–45 (1941).
Luo, L.Z. and Li, G.B., “The Threshold Temperature, Thermal Constant, and Division of Generation Regions of Meadowmoth (Loxostege sticticalis L.) in China,” Acta Entomol. Sin. 36(3), 332–339 (1993).
Pyatnitskii, G.K., Beet Webworm Ecology and the Theory of its Outbreaks Revisited (TsUEGMS, Leningrad, 1936) [in Russian].
Saulich, A Kh., Seasonal Development of Insects and Possibilities of Their Dispersal (SPbGU, St. Petersburg, 1999) [in Russian].
Saulich, A.Kh. and Volkovich, T.A., Ecology of the Photoperiodism in Insects (SPbGU, St. Petersburg, 2004) [in Russian].
Saulich, A.Kh., Volkovich, T.A., and Goryshin, N.I., “Photoperiodic Control of Development of Loxostege sticticalis in Nature,” Zool. Zh. 62(11), 1663–1675 (1983).
Ushatinskaya, R.S., “Daily and Seasonal Rhythms of Activity of the Beetle,” in The Colorado Potato Beetle, Leptinotarsa decemlineata Say (Nauka, Moscow, 1981), pp. 115–149 [in Russian].
Vinogradova, E.B., “Peculiarities of Reproduction and Forms of Imaginal Diapause in the Ragweed Leaf Beetle Zygogramma suturalis F. (Coleoptera, Chrysomelidae),” Entomol. Obozr. 67(3), 468–479 (1988).
Znamenskii, A.V., “Weather and the Beet Webworm,” Sborn. VIZR. 2, 30–33 (1932).
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Original Russian Text © Yu.B. Akhanaev, M.N. Berim, S.Ya. Reznik, A.Kh. Saulich, A.N. Frolov, 2014, published in Entomologicheskoe Obozrenie, 2014, Vol. 93, No. 2, pp. 249–255.
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Akhanaev, Y.B., Berim, M.N., Reznik, S.Y. et al. On the temperature tolerance of diapausing prepupae of the beet webworm Loxostege sticticalis L. (Lepidoptera, Pyraloidea: Crambidae). Entmol. Rev. 94, 925–929 (2014). https://doi.org/10.1134/S001387381407001X
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DOI: https://doi.org/10.1134/S001387381407001X