Ability of the Aphid Parasitoid Species Binodoxys indicus to Switch over to Alternative Host-complexes

2000 ◽  
Vol 25 (1) ◽  
pp. 53-66
Author(s):  
Rajendra Singh ◽  
Anjana Singh ◽  
Sharmila Pandey
Keyword(s):  
Alternative Host ◽  
Parasitoid Species ◽  
Aphid Parasitoid

scholarly journals Parasitism Capacity of Trichogramma pretiosum and Trichogramma acacioi (Hym.: Trichogrammatidae) on eggs of Sitotroga cerealella (Lep.: Gelechiidae)

2008 ◽  
Vol 51 (6) ◽  
pp. 1249-1254 ◽  
Author(s):  
Dirceu Pratissoli ◽  
José Cola Zanuncio ◽  
Ulysses Rodrigues Vianna ◽  
Josimar Souza Andrade ◽  
Fernando Domingo Zinger ◽  
...  
Keyword(s):  
Biological Control ◽  
Sitotroga Cerealella ◽  
Alternative Host ◽  
Trichogramma Pretiosum ◽  
Parasitoid Species ◽  
Control Programs ◽  
Total Parasitism

The objective of this work was to evaluate the parasitism capacity of Trichogramma pretiosum Riley and T. acacioi Brun, Moraes and Soares (Hymenoptera: Trichogrammatidae) in eggs of the alternative host Sitotroga cerealella (Olivier) (Lepidoptera: Gelechiidae) aiming to use both species in biological control programs of Nipteria panacea Tierry-Mieg (Lepidoptera: Geometridae). The parasitism rhythm and total parasitism of these parasitoid species were affected by the temperature with higher values during the first 24 h of their life. Parasitism period was longer for T. pretiosum and T. acacioi at the lowest temperature.

scholarly journals Trioxys liui Chou & Chou, 1993 (Hymenoptera, Braconidae, Aphidiinae): an invasive aphid parasitoid attacking invasive Takecallis species (Hemiptera, Aphididae) in the Iberian Peninsula

ZooKeys ◽  
2020 ◽  
Vol 944 ◽  
pp. 99-114 ◽  
Author(s):  
Ehsan Rakhshani ◽  
Jose Michelena Saval ◽  
Nicolas Pérez Hidalgo ◽  
Xavier Pons ◽  
Nickolas G. Kavallieratos ◽  
...  
Keyword(s):  
Plant Material ◽  
Local Environment ◽  
Undescribed Species ◽  
Parasitoid Species ◽  
Long Distance ◽  
New Host ◽  
Aphid Parasitoid ◽  
New Association ◽  
Bamboo Plant ◽  
Accidental Introduction

Biological invasion of aphids and other insects has been increased due to long distance commercial transportation of plant material. The bamboo-aphid-parasitoid association is strictly specific and even though it does not develop interactions with the local environment it should be listed as part of the fauna of southwestern Europe. On-going research regarding aphids and their aphidiine parasitoids in Spain has yielded a new association of Trioxys liui Chou & Chou, 1993 with an undescribed species of Takecallis aphids on bamboo, Phyllostachys spp. Here we present the first association of T. liui with aphids of the genus Takecallis that attack bamboos. Trioxys liui is known as a parasitoid of Cranaphis formosana (Takahashi, 1924) and Phyllaphoides bambusicola Takahashi, 1921 on bamboos in China and Russia. The accidental introduction of this parasitoid species to southwestern Europe has been probably realized through transportation of contaminated bamboo plant material. In the current study, a new host association is recorded for T. liui. Its potential to invade other bamboo-associated aphids and the significance of the tritrophic bamboo-aphid-parasitoid interactions in the new environments are also discussed.

CONSPECIFIC SUPERPARASITISM IN TWO PARASITOID WASPS, APHIDIUS ERVI HALIDAY AND APHELINUS ASYCHIS WALKER: REPRODUCTIVE STRATEGIES INFLUENCE HOST DISCRIMINATION

1991 ◽  
Vol 123 (6) ◽  
pp. 1229-1237 ◽  
Author(s):  
B. Bai
Keyword(s):  
Reproductive Strategies ◽  
Acyrthosiphon Pisum ◽  
Aphidius Ervi ◽  
Parasitoid Wasps ◽  
Host Discrimination ◽  
Larval Competition ◽  
Parasitoid Species ◽  
Aphid Parasitoid ◽  
Aphelinus Asychis ◽  
Physiological Suppression

AbstractConspecific host discrimination and larval competition in two aphid parasitoid species were studied in the laboratory using the pea aphid, Acyrthosiphon pisum (Harris) (Homoptera: Aphididae), as a host. Aphidius ervi Haliday (Hymenoptera: Aphidiidae) used internal host cues to discriminate between unparasitized and conspecific parasitized hosts. When only parasitized hosts were available, females oviposited into recently parasitized ones where their progeny had a good chance to survive, but rejected those parasitized ≥24 h earlier where their offspring normally died. Competitions occurred only after both eggs had hatched. Larvae eliminated supernumeraries by means of physical combat and physiological suppression. In Aphelinus asychis Walker (Hymenoptera: Aphelinidae), factors, or changes in host internal condition, associated with hatching of the first egg resulted in suppression of conspecific competitors which could be in either larval or egg stage. The older larvae always won competitions through physiological means. A wasp’s oviposition decision is shown to be influenced by the probability of its progeny’s survival. Species that have different reproductive strategies may respond differently to identical host conditions.

Aphidiinae (Hymenoptera, Braconidae, Aphidiinae) from Slovenia, with descrip-tion of a new Aphidius species

Zootaxa ◽  
2012 ◽  
Vol 3456 (1) ◽  
pp. 36 ◽  
Author(s):  
KATARINA KOS ◽  
STANISLAV TRDAN ◽  
ANDJELJKO PETROVIĆ ◽  
PETR STARÝ ◽  
NICKOLAS G. KAVALLIERATOS ◽  
...  
Keyword(s):  
Host Plants ◽  
Deciduous Forest ◽  
Mediterranean Species ◽  
Parasitoid Species ◽  
Eastern Deciduous Forest ◽  
Aphid Parasitoid ◽  
Faunal Complexes ◽  
Far Eastern ◽  
First Time ◽  
Tamarix Gallica

Over the period 2006–2010, 40 species of primary parasitoids belonging to eleven genera were found and reared from 50 species of host aphids, from a total of 106 host plants collected from 62 localities all around Slovenia. Over 230 tritrophic associations have been reviewed, including four associations which are reported for the first time; Ephedrus plagiator/ Staticobium limonii/ Limonium angustifolium, Praon necans/ Staticobium limonii/ Limonium angustifolium, Aphidius sussi/Delphinobium sp./Aconitum maximum and Ephedrus persicae/Brachyunguis tamaricis/ Tamarix gallica. The parasitoid species from Slovenia have been grouped in seven faunal complexes according to their origin, e.g. 11 species from European deciduous forest, 3 species from Far Eastern deciduous forest, 20 species from Eurasian Steppes, 1 Mediterranean species, 2 species from Holarctic Forest Tundra, 2 species from Boreal Europe, and 1 Nearctic species. Also, a new aphid parasitoid species Aphidius staticobii sp.n. Tomanović and Petrović has been described from the association Staticobium limonii/ Limonium angustifolium.

scholarly journals The Host-Plant Origin Affects the Morphological Traits and the Reproductive Behavior of the Aphid Parasitoid Aphelinus mali

Agronomy ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 101
Author(s):  
Ainara Peñalver-Cruz ◽  
Bruno Jaloux ◽  
Blas Lavandero
Keyword(s):  
Host Plant ◽  
Host Plants ◽  
Habitat Management ◽  
Alternative Host ◽  
Eriosoma Lanigerum ◽  
Natural Habitats ◽  
Aphid Parasitoid ◽  
Aphelinus Mali ◽  
Biological Performance ◽  
Potential Use

Diversifying agroecosystems through habitat management inside or outside production fields can provide alternative hosts and/or prey for natural enemies. In semi-natural habitats, parasitoids may find alternative host-plant complexes (HPC) that could allow their development when pest hosts are scarce in the field. However, morphological and physiological differences between alternative and targeted HPCs could affect the preference and fitness of the parasitoids, possibly altering their efficacy in regulating pests. In the present study, we examined two Aphelinus mali parasitoid populations developing on Eriosoma lanigerum from two host plants (Malus domestica-apple trees and Pyracantha coccinea). We hypothesized that A. mali from both HPCs will show different life history traits and behaviors because primary and alternative host-plants are known to induce variations in parasitoid biological performance. Our findings indicate that A. mali originating from E. lanigerum on P. coccinea parasitized more aphids and are smaller than those originating from E. lanigerum on apple. Furthermore, these parasitoids did not significantly vary their ability to attack and oviposit apple E. lanigerum, suggesting that P. coccinea could function as a suitable banker plant for A. mali. We discuss the potential use of P. coccinea in conservation biological control of E. lanigerum in apple orchards.

Electrophoretic study of five aphid parasitoid species of the genus Aphidius (Hymenoptera: Braconidae), including evidence for reproductively isolated sympatric populations and a cryptic species

1998 ◽  
Vol 88 (1) ◽  
pp. 3-13 ◽  
Author(s):  
P. Atanassova ◽  
C.P. Brookes ◽  
H.D. Loxdale ◽  
W. Powell
Keyword(s):  
Cryptic Species ◽  
Acyrthosiphon Pisum ◽  
Genetic Relationships ◽  
Pea Aphid ◽  
Parasitoid Species ◽  
Sympatric Populations ◽  
Electrophoretic Study ◽  
Aphid Parasitoid ◽  
Parasitoid Population ◽  
The Uk

AbstractFour polymorphic enzymes (PEP, PGI, PGM and IDH) were separated from adult individuals of five aphid parasitoid species of the genus Aphidius Nees (A. ervi Haliday, A. microlophii Pennacchio & Tremblay, A. eadyi Starý, Gonzalez & Hall, A. picipes Nees and A. urticae Haliday) using horizontal cellulose acetate plate electrophoresis. These markers were used to investigate the genetic relationships, including reproductive isolation and host adaptation/specificity, in laboratory and field populations. Samples were collected from the pea aphid, Acyrthosiphon pisum (Harris) and/or the nettle aphid, Microlophium carnosum (Buckton) in the UK and Bulgaria between 1991 and 1994. Whilst all loci discriminated between some species, PGM discriminated all five species, one species (A. eadyi) bearing two unique alleles (PGMa and PGMc). Aphidius microlophii (from nettle aphid) and A. ervi (from pea aphid), which are difficult to separate morphologically, possessed unique PGM alleles – PGMb and PGMe, respectively. Both parasitoids occur sympatrically, and whilst hybrids heterozygous for PGM were produced in the laboratory (PGMb,e), such genotypes were not observed in the field populations sampled. Hence, the species appear to be reproductively isolated. Most parasitoid populations studied showed mean heterozygote deficiencies per locus (homozygote excess) compared with Hardy-Weinberg expectations. In particular, A. eadyi bearing PGMa alleles were always homozygous whilst additionally, many were homozygous for another allele, PGIb. This is evidence for the existence of one or more morphologically-indistinguishable ‘cryptic’ species occurring sympatrically within European field populations. A dendrogram of relatedness was produced following calculation of Nei's genetic identity coefficient, I from the parasitoid population allele frequency data. All species showed very high similarity between populations at the intraspecific level (>0.9), but fewer interspecific similarities (0.23–0.63). These values compare well with previously published values for Aphidius populations and for other insects.

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