Chemical nature and persistence of the oviposition deterring pheromone in the tracks of the larvae of the two spot ladybird, Adalia bipunctata (Coleoptera: Coccinellidae)

Hemptinne, Jean‐Louis; Lognay, Georges; Doumbia, Mamadou Lamine; Dixon, A. F. G.

doi:10.1007/pl00001831

Cited by 88 publications

(74 citation statements)

References 12 publications

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“…In order to maximize their fitness, it has been demonstrated that they have to lay few eggs rather early in the development of the aphid colonies (Kindlmann and Dixon, 1993). In addition, as soon as one female lays eggs in a colony, this colony is not suitable for other conspecifics (Kan, 1988a, b;Doumbia et al, 1998;Hemptinne et al, 2001). The observations made in the Asturian orchards are well explained in light of the oviposition behaviour of these two specialist predators and they tend to confirm the inability of natural populations of aphidophagous specialist predators in regulating aphid abundance (Kindlmann and Dixon, 1999;Dixon, 2000).…”

Section: Discussionmentioning

confidence: 99%

Colonization of apple orchards by predators of Dysaphis plantaginea: sequential arrival, response to prey abundance and consequences for biological control

2005

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Abstract. Episyrphus balteatus (DeGeer) (Diptera: Syrphidae), Adalia bipunctata (L.) (Coleoptera: Coccinellidae) and Aphidoletes aphidimyza (Rondani) (Diptera: Cecidomyiidae) are the three most abundant natural enemies of Dysaphis plantaginea Passerini (Homoptera: Aphididae) in Asturian (NW Spain) apple orchards. They attack this aphid in sequence: E. balteatus arrived first, followed by A. bipunctata and then by A. aphidimyza. The cecidomyiids arrived too late to have a regulating effect. The syrphids laid an average of 2.3 ± 1.7 eggs per aphid colony and the coccinellids 18.4 ± 9.9 regardless of the degree of the infestation rates of the apple shoots. This value corresponds to the size of an egg batch laid by one female. Therefore, these aphid predators did not respond numerically to the abundance of the pest. The results of this study indicate that natural populations of syrphids and ladybird beetles are unable to control D. plantaginea, and therefore a more complex strategy than waiting for natural enemies is required.

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Section: Discussionmentioning

confidence: 99%

Colonization of apple orchards by predators of Dysaphis plantaginea: sequential arrival, response to prey abundance and consequences for biological control

2005

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“…In a recent study, (z)-Pentacos-12-ene, was found to be solely an ODP of Cheilomenes sexmaculata (Fabricius) (Klewer et al, 2007). The predominantly alkane constituents of ODP have been attributed as the reason for the long lasting signal (Hemptinne et al, 2001). Studies on A. bipunctata (Doumbia et al, 1998) and P. dissecta (Mishra & Omkar, 2006), indicate the effects of ODP to be densitydependent and not age or sex-specific.…”

Section: Introductionmentioning

confidence: 99%

“…It is also now known that the secretion of ODP takes place from the anal disk on the 10 th abdominal segment of larvae (Laubertie et al, 2006). Hemptinne et al (2001) attributed ODP effect to a mixture of discovered alkanes with the major component n-pentacosane. In a recent study, (z)-Pentacos-12-ene, was found to be solely an ODP of Cheilomenes sexmaculata (Fabricius) (Klewer et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Effect of presence and semiochemicals of conspecific stages on oviposition by ladybirds (Coleoptera: Coccinellidae)

Mishra¹,

Singh²,

Shahid³

et al. 2012

Eur. J. Entomol.

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Abstract.Reduced oviposition by ladybirds in the presence of tracks of fourth instar larvae owing to the presence of oviposition deterring pheromones is well established across many genera. However, deterrence, if any, by other life stages has not been well investigated, in particular the effect of conspecific presence. The present study investigates the effects of conspecific presence and semiochemicals of conspecific life stages (eggs, fourth instar larvae, pupae, adult males and females) on oviposition by five ladybird (Coleoptera: Coccinellidae) species, viz. Coccinella septempunctata, Coccinella transversalis, Cheilomenes sexmaculata, Propylea dissecta and Anegleis cardoni. Results reveal that the presence of life stages inhibits oviposition and the inhibition is densitydependent, although the degree of inhibition is species-specific. Surface semiochemicals of eggs and larval and adult tracks also show density-dependent inhibitory effects. Moreover, the semiochemicals in tracks (oviposition deterring pheromones) and egg surface semiochemicals are not similar, indicating semiochemical parsimony. Of all species tested, C. transversalis and C. septempunctata were the most and the least responsive to both conspecific presence and semiochemicals, respectively.

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“…Coccinellids and syrphids have evolved mechanisms to oviposit preferentially in colonies that are in the early stage of development and avoid those that are already attacked. They tend to oviposit only during this short "egg window" in aphid colonies (Ito and Iwao, 1977;Kan and Sasakawa, 1986;Chambers, 1991;Hemptinne et al 1992;Hemptinne et al 1993;Hemptinne et al 2001). Therefore, these aphidophagous predators should be present in the field to improve the biological control of A.…”

Section: Chapter III 115mentioning

confidence: 99%

Integrated Pest Management of Aphis spiraecola (Hemiptera: Aphididae) in clementines: enhancing its biological control

Marco¹

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A ma mare "la entrada del neolítico es la del abuso y la del sojuzgamiento, y en ella seguimos, inadaptados" Félix Rodríguez de la FuenteAgraïments Agraixc als meus directors Alberto Urbaneja i Alejandro Tena tota la feina que han fet i que m'han empentat a fer per aconseguir este primer escaló.Gracies Alberto per la teua confiança i dedicació des de abans del primer dia de doctorat, després de cinc anys i una tesi, ara ja podem ser amics.Gracies Alejandro per estar pendent cada dia, amb eixa dedicació e il•lusió.He disfrutat molt dels nostres debats científics. Ara ja soc mig enginyer?També he de agrair a Josep Jaques la seua col•laboració en gran part de la tesi. Gracies Josep per aportar de la teua clarividència. Es molt fàcil aprendre amb tres mostres com estos.Vull agrair infinitament a Pablo Bru tot el temps dedicat i tota la faena que hem compartit al camp. Sense la seua ajuda gran part de la tesis no haguera sigut possible. I per suposat a tots aquells que també han compartit hores de sol i calor, fang, pluja i fred o inclús rossejades de aplicacions quimiques. Vull agrair de una manera especial a dos persones que foren molt importants en dos moments claus de la meua carrera com Entomòleg. Sense la seua espenta en eixe instant, no estaria ací. Gracies Manel Porcar i Paco Beitia.I també a totes aquelles persones que durant mes de deu anys en convertiren de Biòleg a Entomòleg. Gracies a Lara Navarro, Teresa Oltra, Olaf Strauss, Axel Gruppe, Rosa Vercher i Ferran Garcia Marí, Tatiana Pina, Alfonso Hermoso de Mendoza, Maria Jesus Verdú, Jose Manuel Michelena, Paul Rugman-Jones i un llarg etc.Agrair a tots els meus amics i a totes aquelles persones especials que han compartit en mi el temps mentre esta tesi prenia forma. Sense ells, haguera sigut un viatge mes pesat.Especialment a Marta, en tu tot es molt més fàcil, ara et toca a tu.Nomes hem falta agrair a ma mare i mon pare tot el que han fet per a que el meu somni continués endavant, i sobre tot per els valors que m'ensenyaren de humilitat i perseverança. ResumAphis spiraecola Patch. (Hemiptera: Aphididae) és una de les plagues clau en el cultiu de clementins de la conca Mediterrània. En primavera, este àfid colonitza les brotacions tendres dels clementins i provoca importants pèrdues econòmiques tots els anys. Actualment la gestió integrada d"A. spiraecola en clementins està basada en el control químic ja que es desconeix prou sobre el control biològic d"A. spiraecola en cítrics i els esforços realitzats fins ara s"han centrat en el us i conservació de parasitoids encara que es desconeix les causes de la seua baixa eficàcia. Per altra banda, es coneix molt bé el conjunt de depredadors d"A. spiraecola però el seu impacte sobre les poblacions de l"àfid no s"han documentat. Tenint en compte estos antecedents, els objectius d"esta tesis foren: i) desentrampar les raons per les quals els parasitoids no són efectius; ii) determinar quan i com els depredadors poden controlar les poblacions d"A. spiraecola; i finalment iii) determinar si una coberta de poàcies po...

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Chemical nature and persistence of the oviposition deterring pheromone in the tracks of the larvae of the two spot ladybird, Adalia bipunctata (Coleoptera: Coccinellidae)

Cited by 88 publications

References 12 publications

Colonization of apple orchards by predators of Dysaphis plantaginea: sequential arrival, response to prey abundance and consequences for biological control

Colonization of apple orchards by predators of Dysaphis plantaginea: sequential arrival, response to prey abundance and consequences for biological control

Effect of presence and semiochemicals of conspecific stages on oviposition by ladybirds (Coleoptera: Coccinellidae)

Integrated Pest Management of Aphis spiraecola (Hemiptera: Aphididae) in clementines: enhancing its biological control

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