Potato Tuberworm, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae)

Frank, J. Howard; Thomas, Michael C.; Yousten, Allan A.; Howard, F. William; Heppner, John B.; Zuparko, Robert L.; Sánchez, Norma E.; Luna, María G.; James, Rosalind R.; Weintraub, Phyllis G.; Horton, David; McCravy, Kenneth W.; Riley, David G.; Marshall, David C.; Hoy, Marjorie A.; Legg, David; Auslane, Heather J. Mc; Wang, Qiao; Lebiush-mordechi, Sarah; Roltsch, William J.; Meyerdirk, Dale E.; Rothschild, Marjorie; Tzanakakis, Minos E.; Lawrence, Pauline O.; Wheeler, Alfred G.; Henry, Thomas J.; Mizell, Russell F.; Mizell, Partricia A.; brien, Lois B. O’; Rossi, Anthony; Hunter, Wayne B.; Vincent, Charles; Leskey, Tracy; Matthews, Deborah L.; Kevan, Peter G.; Pinzauti, Mauro; Pellmyr, Olle; Trumble, John T.; Vickerman, Danel B.; McSorley, Robert; Verma, K. K.; Uspensky, Igor; Hall, Donald W.; Hurd, Lawrence E.; Rybczynski, Robert; Tipping, Christopher; Tsai, James H.; Weinstein, Philip; Slaney, David; Pickett, John A.; Sourakov, Andrei; Giblin-davis, Robin M.; Goula, Marta; Alekseev, Andrey N.; Capinera, John L.; Gill, Harsimran K.; Abivardi, Cyrus; hammad, Efat M. Abou-fakhr; Froeba, Jason G.; Bybee, Seth; Berlinger, Menachem J.; Denmark, Harold A.; Cranshaw, Whitney; Chahil, Gurminder Singh; Asaro, Christopher; Christiansen, Erik; Coons, Lewis B.; Chouinard, Gérald; Goyal, Gaurav; Felicioli, Antonio; Adler, Peter H.; Álvarez, Juan M.; Gerberg, Eugene J.; Gill, Arshdeep Kaur; Clercq, Patrick De; Gilbert, Lawrence I.; Goodman, Katie; Kaufman, J.

doi:10.1007/978-1-4020-6359-6_3095

Encyclopedia of Entomology 2008

DOI: 10.1007/978-1-4020-6359-6_3095

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Potato Tuberworm, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae)

J. Howard Frank¹,

Michael C. Thomas²,

Allan A. Yousten³

et al.

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2015

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Winter is coming: cold hardiness attributes of a field population of the potato tuberworm Phthorimaea operculella

Andreadis

Noukari

Poulia

et al. 2015

Preprint

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The potato tuberworm, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae), is a worldwide pest of solanaceous crops especially devastating to potatoes. In the present study we investigated the cold hardiness profile of short-term acclimated and non-acclimated immature and adult stages of a field population of P. operculella. Late instars displayed the lowest mean supercooling point, for both short-term acclimated and non-acclimated individuals, however, no significant differences were observed among developmental stages. Unlike supercooling capacity, acclimation at 5 oC for 5 days enhanced the ability to survive at subzero temperatures after a 2 h exposure. Mean lethal temperature (LTemp50) of all developmental stages (egg, late instar, pupa and adult) decreased after short-term acclimation, however only adults displayed a significant difference among acclimated and non-acclimated individuals concerning their LTemp50 (-11.1 and -8.3 oC, respectively). Generally, pupae were the most cold tolerant developmental stage followed in decreasing order by the eggs and adults, while interestingly late instars were the least ones. Non-freezing injury above the supercooling point was well documented for all developmental stages indicating a pre-freeze mortality and suggesting that P. operculella is considered to be chill tolerant rather than freeze intolerant. Nevertheless, given its high degree of cold hardiness, winter mortality of P. operculella due to low temperatures is not likely to occur and potential pest outbreak can take place following a mild winter.

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Winter is coming: cold hardiness attributes of a field population of the potato tuberworm Phthorimaea operculella

Andreadis

Noukari

Poulia

et al. 2015

Preprint

View full text Add to dashboard Cite

show abstract

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Potato Tuberworm, Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae)

Cited by 1 publication

References 11 publications

Winter is coming: cold hardiness attributes of a field population of the potato tuberworm Phthorimaea operculella

Winter is coming: cold hardiness attributes of a field population of the potato tuberworm Phthorimaea operculella

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