Study of longevity, fecundity and oviposition of Trichogrammatoidea bactrae nagaraja (Hymenoptera: Trichogrammatidae) to facilitate mass rearing

Perera, M.C.D.; Hemachandra, K. S.

doi:10.4038/tar.v25i4.8065

Cited by 3 publications

(4 citation statements)

References 12 publications

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“…Different sugars (solutions of glucose, fructose and sucrose), undiluted bee honey and distilled water have been assessed for adult Trichogrammatoidea bactrae Nagaraja (Hymenoptera: Trichogrammatidae) longevity. The longevity of females fed honey is significantly increased (Perera & Hemachandra, 2014). Tunca et al (2002) evaluated glucose, fructose, sucrose and honey diets for Chelonus oculator Panzer (Hymenoptera: Braconidae) and determined that honey is a better diet for parasitoids than other sugars.…”

Section: Discussionmentioning

confidence: 99%

A new substitute host and its effects on some biological properties ofOoencyrtus kuvanae

Tunca

Venard²,

Colombel³

et al. 2017

Bull. Entomol. Res.

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Lymantia dispar (L.) (Lepidoptera: Lymantriidae), commonly known as the gypsy moth, is a serious forest pest, and beneficial insects are particularly important for reducing its population numbers. Ooencyrtus kuvanae (Howard) (Hymenoptera: Encyrtidae) is an arrhenotokous, solitary egg parasitoid of L. dispar. In this study, we evaluated a new substitute host, Philosamia ricini (Danovan) (Lepidoptera: Saturniidae) for O. kuvanae. We investigated some of the biological effects of O. kuvanae on P. ricini eggs. In this context, the importance of the age of the female parasitoid (1, 3 or 5 days old), host age (1-2 and 3-4 days old) and host number (40, 60 and 80 host eggs) were examined under laboratory conditions (25 ± 1 °C, 65 ± 5% relative humidity and a 16 : 8 h photoperiod [light : dark]). The highest rate of offspring production (89.90%) occurred with 40 (1-2-day-old) host eggs and 5-day-old females. The mean developmental period ranged from 16.5 ± 0.08 days to 18.7 ± 0.08 days. The mean lifespan of the parasitoid was 51.10 ± 1.1 (n = 60) days with bio-honey and 3.92 ± 0.14 (n = 60) days without food. The mean fecundity was 68.88 ± 3.22 offspring/female. Peak adult emergence occurred between 2 and 9 days. The mean oviposition and mean post-oviposition periods of the female parasitoid were 22.76 ± 1.37 days and 13.64 ± 1.40 days, respectively. O. kuvanae was reared for more than ten generations on the eggs of P. ricini. Based on our findings, P. ricini can be used to rear O. kuvanae for the biological control of L. dispar.

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Section: Discussionmentioning

confidence: 99%

A new substitute host and its effects on some biological properties ofOoencyrtus kuvanae

Tunca

Venard²,

Colombel³

et al. 2017

Bull. Entomol. Res.

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“…Mummies of the Braconid wasp A. colemani, supplied by Fargro (West Sussex, UK), were transferred to plastic ventilated boxes supplied with a food source of 50% (v/v) honey, which is deemed suitable for rearing Hymenopteran parasitoids (Perera & Hemachandra, 2014), soaked into a cotton wool ball. A cohort of emerging wasps (5-7 d old) was transferred to M. persicae-infested oilseed rape plants (growth stage 2.3-2.5, determined using the Harper and Berkenkamp key) enclosed in a fine mesh cage.…”

Section: Insect Rearingmentioning

confidence: 99%

The price of protection: a defensive endosymbiont impairs nymph growth in the bird cherry‐oat aphid, Rhopalosiphum padi

et al. 2018

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Bacterial endosymbionts have enabled aphids to adapt to a range of stressors, but their effects in many aphid species remain to be established. The bird cherry-oat aphid, Rhopalosiphum padi (Linnaeus), is an important pest of cereals worldwide and has been reported to form symbiotic associations with Serratia symbiotica and Sitobion miscanthi L-type symbiont endobacteria, although the resulting aphid phenotype has not been described. This study presents the first report of R. padi infection with the facultative bacterial endosymbiont Hamiltonella defensa. Individuals of R. padi were sampled from populations in Eastern Scotland, UK, and shown to represent seven R. padi genotypes based on the size of polymorphic microsatellite markers; two of these genotypes harbored H. defensa. In parasitism assays, survival of H. defensa-infected nymphs following attack by the parasitoid wasp Aphidius colemani (Viereck) was 5 fold higher than for uninfected nymphs. Aphid genotype was a major determinant of aphid performance on two Hordeum species, a modern cultivar of barley H. vulgare and a wild relative H. spontaneum, although aphids infected with H. defensa showed 16% lower nymph mass gain on the partially resistant wild relative compared with uninfected individuals. These findings suggest that deploying resistance traits in barley will favor the fittest R. padi genotypes, but symbiont-infected individuals will be favored when parasitoids are abundant, although these aphids will not achieve optimal performance on a poor quality host plant.

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“…In this process, natural enemies are reared in an insectary and released at target sites in large numbers for suppression and reducti on of damaging pest populations (Orr, 2009;Perera & Hemachandra, 2014). Among the parasitoids, egg parasitoids have great advantages over larval or pupal parasitoids, because egg parasitoids destroy the pest before they attack the crop.…”

Section: Discussionmentioning

confidence: 99%

“…Parasitoid fi tness is also very important for biological control programs. The fi tness of females is mainly dependent on their ability to fi nd hosts, and evaluating their life-history entails examining traits such as the percentage of eggs parasitized and percentage parasitoid emergence, development time, sex ratio and longevity (Bigler et al, 1991;Fournet et al, 2001;Perera & Hemachandra, 2014). The solitary synovigenic egg parasitoid Ooencyrtus pityocampae can be utilized in the biological control of the pine processionary moth due to its biological characteristics, which are as follows: it is successful in parasitizing this host both in the laboratory and the fi eld, has a short development time, long adult longevity, is able to successfully overwinter as a diapausing female and can locate its host by responding to its sex pheromone (Biliotti, 1958;Battisti et al, 1990;Tiberi, 1990;Tsankov et al, 1996Tsankov et al, , 1999Schmidt et al, 1997Schmidt et al, , 1999Mirchev et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

Tendency and consequences of superparasitism for the parasitoid Ooencyrtus pityocampae (Hymenoptera: Encyrtidae) in parasitizing a new laboratory host, Philosamia ricini (Lepidoptera: Saturniidae)

Tunca¹,

Buradino²,

Colombel³

et al. 2016

Eur. J. Entomol.

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Study of longevity, fecundity and oviposition of Trichogrammatoidea bactrae nagaraja (Hymenoptera: Trichogrammatidae) to facilitate mass rearing

Abstract: Trichogrammatoidea bactrae (Nagaraja)

Cited by 3 publications

References 12 publications

A new substitute host and its effects on some biological properties ofOoencyrtus kuvanae

A new substitute host and its effects on some biological properties ofOoencyrtus kuvanae

The price of protection: a defensive endosymbiont impairs nymph growth in the bird cherry‐oat aphid, Rhopalosiphum padi

Tendency and consequences of superparasitism for the parasitoid Ooencyrtus pityocampae (Hymenoptera: Encyrtidae) in parasitizing a new laboratory host, Philosamia ricini (Lepidoptera: Saturniidae)

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