Bulletin of Entomological Research

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Widespread pyrethroid resistance in Australian diamondback moth,Plutella xylostella(L.), is related to multiple mutations in theparasodium channel gene
Bulletin of Entomological Research - Tập 101 Số 4 - Trang 393-405 - 2011
N. M. Endersby, K. Viduka, Simon W. Baxter, Jarel T.S. Saw, David G. Heckel, Stephen W. McKechnie
AbstractPopulations ofPlutella xylostella, extending over 3800 km in southern Australia, show no genetic structure as assessed by microsatellite markers; yet outbreaks of pyrethroid resistance occur sporadically in cropping areas. Since mutations in theparavoltage-gated sodium channel gene have been implicated in pyrethroid resistance, we looked for DNA sequence variation at this target among Aust... hiện toàn bộ
Carbohydrate and Fat Metabolism in Adult Lepidoptera
Bulletin of Entomological Research - Tập 29 Số 1 - Trang 103-114 - 1938
I. W. Kozhantshikov
The results of the present investigation can be summarised as follows :—1. Carbohydrate metabolism in females of all the species studied (except Operophthera brumata) shows a definite dependence on the period of maturation. The greatest quantity of sugar is consumed during the first 4–5 days after emergence. During the period of gonad maturation both the body weight and the oxygen consumption are ... hiện toàn bộ
The effect of natural enemies on the spread of barley yellow dwarf virus (BYDV) by Rhopalosiphum padi (Hemiptera: Aphididae)
Bulletin of Entomological Research - Tập 91 Số 4 - Trang 301-306 - 2001
Ilias Smyrnioudis, R. Harrington, S. J. Clark, N. I. Katis
AbstractThe effects of two natural aphid enemies, adult Coccinella septempunctataLinneaus, a predator, and Aphidius rhopalosiphi de Stefani Perez, a parasitoid, on spread of barley yellow dwarf virus (BYDV) transmitted by the bird cherry–oat aphid, Rhopalosiphum padi (Linnaeus) were studied under laboratory conditions. Predators or parasitoids were introduced to trays of durum wheat seedlings and ... hiện toàn bộ
Second Report of the Tsetse-fly Investigation in the Northern Provinces of Nigeria
Bulletin of Entomological Research - Tập 15 Số 1 - Trang 1-27 - 1924
Llewellyn Lloyd, W. B. Johnson, W. A. Young, Henry Morgan Morrison
This report contains a record of the trypanosome infections, food and breeding of G. morsitans and G. tachinoides obtained by examining the flies at various foci over a period of fourteen months.It confirms the fact that the breeding of both species is practically confined to the dry season and follows a period of increased food supply. G. tachinoides is well fed through the rains, except in one m... hiện toàn bộ
Migrating moths collected in tower-mounted light traps in northern New South Wales, Australia: influence of local and synoptic weather
Bulletin of Entomological Research - Tập 84 Số 1 - Trang 17-30 - 1994
Peter Gregg, G. P. Fitt, Marc Coombs, G. S. Henderson
AbstractCatches of moths in tower-mounted light traps in northern New South Wales were analysed in relation to local and synoptic weather. Catches were correlated with windspeed, relative humidity and possibly rainfall. No correlations were obtained with temperature or moon phase. Catches were more likely to occur when winds were from the east, and were associated with wind shifts. There was a sig... hiện toàn bộ
Dispersal and survival of Anopheles funestus and A. gambiae s.l. (Diptera: Culicidae) during the rainy season in southeast Tanzania
Bulletin of Entomological Research - Tập 88 Số 5 - Trang 561-566 - 1998
Willem Takken, Jacques Derek Charlwood, Brian D. Foy, Gerrit Gort
AbstractIn a rural area of southeastern Tanzania, studies were undertaken on the dispersal and survival of Anopheles funestus Giles and A. gambiae Giles s.l. during the rainy season. Blood fed, resting mosquitoes were collected indoors, marked with fluorescent powder and released on the same day from two different sites in the study area. For two weeks indoor resting mosquitoes were collected from... hiện toàn bộ
Molecular markers indicate that the wheat curl mite, Aceria tosichella Keifer, may represent a species complex in Australia
Bulletin of Entomological Research - Tập 99 Số 5 - Trang 479-486 - 2009
Melissa E. Carew, Michele Schiffer, Paul A. Umina, Andrew R. Weeks, Ary A. Hoffmann
AbstractThe wheat curl mite (WCM), Aceria tosichella Keifer, is an eriophyoid pest of cereals, and the vector responsible for transmitting wheat streak mosaic virus. Several authors have suggested cryptic species of this mite identified through morphological variation, but this has never been conclusively demonstrated. Here, we use the mitochondrial 16S rRNA gene and two nuclear markers (internal ... hiện toàn bộ
Life-history parameters of different biotypes ofBemisia tabaci(Hemiptera: Aleyrodidae) in relation to temperature and host plant: a selective review
Bulletin of Entomological Research - Tập 88 Số 3 - Trang 219-230 - 1998
Y.C. Drost, J.C. van Lenteren, H.J.W. van Roermund
AbstractLife-history parameters of different biotypes of the whiteflyBemisia tabaci(Gennadius) species complex were reviewed. This included the B-biotype ofB. tabaci, identified asB. argentifolii(Bellows & Perring). Comparisons were made among different biotypes on cotton, among host plants for biotype B and among the whitefly speciesB. tabaciandTrialeurodes vaporariorum(Westwood), the greenhouse ... hiện toàn bộ
F2 screen for resistance to a Bacillus thuringiensis-maize hybrid in the sugarcane borer (Lepidoptera: Crambidae)
Bulletin of Entomological Research - Tập 97 Số 5 - Trang 437-444 - 2007
Fangneng Huang, B. R. Leonard, David A. Andow
AbstractA novel F2 screening technique was developed for detecting resistance in sugarcane borer, Diatraea saccharalis (F.), to transgenic Bacillus thuringiensis (Bt)-maize expressing the Cry1Ab insecticidal protein. The F2 screening method involved (i) collecting larvae from maize fields; (ii) establishing two-parent families; (iii) screening F2 neonates for survival on Bt-maize leaf tissues; and... hiện toàn bộ
Characterization of the M918T sodium channel gene mutation associated with strong resistance to pyrethroid insecticides in the peach-potato aphid, Myzus persicae (Sulzer)
Bulletin of Entomological Research - Tập 98 Số 2 - Trang 183-191 - 2008
Ioannis Eleftherianos, S. P. Foster, Martin S. Williamson, I. Denholm
AbstractRecent advances in the characterisation of insect sodium channel gene sequences have identified a small number of point mutations within the channel protein that are implicated in conferring target-site resistance to pyrethroid insecticides (so-called knockdown resistance or kdr). The L1014F (leucine-to-phenylalanine) mutation located in the centre of segment 6 of the domain II region (IIS... hiện toàn bộ
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