Effect of host egg viability on reproduction and development of<i>Trichogramma cacoeciae</i>and<i>T. principium</i>(Hymenoptera: Trichogrammatidae)

Makee, H.

doi:10.1080/09583150500335491

Cited by 5 publications

(5 citation statements)

References 26 publications

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“…He added that hosts with no embryo, females may show no preference for accepting a host within different parts of the host egg. The present results are disagree with those of Makee (2006) who found that the tendency of T. cacoeciae females to attack infertile eggs was similar to that of fertile eggs, whereas T. principium showed a greater preference for infertile eggs than fertile eggs, and fertility status of the host did not affect the number of eggs that were parasitized.…”

Section: Influence Of Infertile Eggs On Some Biological Aspects Of Trichogramma Effect On Percentage Of Parasitized Host Eggscontrasting

confidence: 99%

“…Olson 1998 stated that, some of the fresh host eggs presented to females may have not been fertilized which may have also affected parasitoid survival. The present results are in agreement with that of Makee (2006) who mentioned that fewer F 1 progeny emerged from infertile eggs when parasitized than from fertile eggs. The present results are close to those of AN Dahlan Gordon Gordh (1997 who stated that 20% of parasitized infertile eggs (< 12 h old) produced adult wasps but their number was significantly lower (P < 0.05) than those from fertile eggs.…”

Section: Effect On Percentage Of Emerged Progenysupporting

confidence: 94%

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Effect of Egg Age and Fertility on Some Biological Aspects of Three Trichogramma Species

Sharkawy

Manal²

2011

Egyptian Journal of Agricultural Research

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Two laboratory experiments were carried out to determine the effect of egg age and its fertility on fecundity, progeny survival and sex-ratio of three trichogrammatids i.e., Trichogramma evanescens, Trichogrammatoidea bactrae and Trichogramma brassicae. In the first experiment, three different ages (one, two and three days old) of fertile eggs from three lepidopterous hosts (Pectinophora gossypiella Saund., Agrotis ipsilon Hufn. and Sitotroga cerealella Olivier) were introduced to Trichogramma females. In the second experiment, infertile eggs of P. gossypiella and A. ipsilon were introduced to Trichogramma females to test the acceptability of these eggs to be parasitized by those females. The number of parasitized eggs/ female was higher on 0-l day old eggs and decreased significantly as the host eggs became older. Higher percentages of progeny were emerged from all the tested ages of P. gossypiella and S. cerealella eggs. On the other hand, the emerged progeny of the three Trichogramma species was decreased significantly by the progress of embryo development in A. ipsilon eggs. Furthermore, infertile P. gossypiella and A. ipsilon eggs were not accepted by the three Trichogramma species.

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Section: Influence Of Infertile Eggs On Some Biological Aspects Of Trichogramma Effect On Percentage Of Parasitized Host Eggscontrasting

confidence: 99%

Section: Effect On Percentage Of Emerged Progenysupporting

confidence: 94%

Effect of Egg Age and Fertility on Some Biological Aspects of Three Trichogramma Species

Sharkawy

Manal²

2011

Egyptian Journal of Agricultural Research

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“…(2005) report that the number of adult parasitoids T. cryptophlebiae that emerged from parasitized sterile false codling moth eggs was affected by host cross when female codling moths were irradiated. Also, Makee (2006) observed for T. cacoeciae and T. principium that fewer F 1 progeny emerged from infertile eggs when parasitized than from fertile eggs.…”

Section: Discussionmentioning

confidence: 91%

“…Zhagn and Cossentine (1995) reported similar findings in a host preference study involving Trichogramma platneri Nagarkatti on viable and non‐viable codling moth and other Tortricidae moths. Makee (2006) working with T. cacoeciae and Trichogramma principium Sug. & Sor on codling moth found that T. cacoeciae had a similar tendency to parasitize both fertile and sterile eggs, whereas T. principium showed a greater preference for sterile eggs than fertile eggs.…”

Section: Discussionmentioning

confidence: 99%

Potential for controlling codling moth Cydia pomonella (Linnaeus) (Lepidoptera: Tortricidae) in Argentina using the sterile insect technique and egg parasitoids

Botto¹,

Glaz²

2010

J Applied Entomology

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Codling moth is the main pest affecting apples and pears worldwide. Most pest control strategies used against this insect have relied on the use of broad‐spectrum insecticides which have led to non‐desirable effects like pesticide resistance, residues in the environment, human health concerns and the reduction of access to international markets. Therefore, alternative pest control strategies that would result in sustainable fruit production systems while taking care of the environment are strongly promoted. The use of the sterile insect technique has proven to be a valuable pest control tactic within area‐wide integrated pest management strategies, and its synergistic effect for Lepidoptera pests when combined with other biological control tactics such as parasitoids has been documented. The purposes of this research were to evaluate the response of an Argentinean codling moth strain to a sub‐sterilizing radiation dose of 100 Gy and to assess the acceptability and suitability of sterile codling moth eggs by the egg parasitoids, Trichogramma cacoeciae (Marchal) and Trichogramma nerudai (Pintureau and Gerding). Irradiated female moths survived better than irradiated male moths and non‐irradiated male and female moths. Also, the fecundity of irradiated female moths was reduced by more than 30% as compared to non‐irradiated ones whereas their fertility was close to zero. The F1 generation was male biased with a lower fertility (inherited sterility) than the parental generation. Trichogramma cacoeciae and T. nerudai parasitized both fertile and sterile eggs. However, there was a significant reduction in acceptability for sterile eggs. Trichogramma nerudai parasitized more eggs than T. cacoeciae, but egg acceptability for this species was proportionally lower than for T. cacoeciae especially on eggs oviposited by irradiated females. Development to adult of both parasitoids species was not substantially affected by the origin of the eggs and the wasps had acceptable levels of adult emergence, survival and fecundity. These results provided useful information on the potential for controlling the codling moth using egg parasitoids and the sterile insect technique in Argentina.

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“…The parasitization of the host egg depends on its acceptance, which in turn depends on its species and age, as well as on the existence of previous parasitization (Benoit and Voegele 1979, Houseweart et al 1982, Pak and Oatman 1982. In turn, host-egg fertilization seems to have no influence on parasitoid development and emergence (Makeea 2006).…”

Section: Introductionmentioning

confidence: 99%

Possible effects of inter-specific competition on the coexistence of two parasitoid species:Trichogramma brassicaeBezdenko andChelonus oculator(F.) (Hymenoptera: Trichogrammatidae, Braconidae)

Cabello¹,

Gámez²,

Torres³

et al. 2011

Community Ecology

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Insect parasitoids have been widely studied, particularly due to their ecological implications through the study of the special relationships observed among this kind of species, as well as to their expression in mathematical models. However, there are still scarce studies on parasitoid relationships and their expression in more realistic mathematical models. The present work is aimed at deepening into competition relationships among parasitoids. Bearing this purpose in mind, the system shaped by two parasitoids was chosen: Trichogramma brassicae (idiobiont egg parasitoid) and Chelonus oculator (koinobiont egg-larval parasitoid). Both species compete against each other for the same host species (Lepidoptera). The results obtained in the laboratory point out that T. brassicae may be considered a better competitor than Ch. oculator. This is the result of the extrinsic competition due to the substances injected by the female during parasitization. However, our results show this classification into better and worse competitors inaccurate. Thus, these interspecific competition influences are detrimental to both parasitoid species. This is the first time that the effect of this competition is mentioned regarding parasitoid functional response. Our results and their ecological implications are reported and discussed.

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Effect of host egg viability on reproduction and development ofTrichogramma cacoeciaeandT. principium(Hymenoptera: Trichogrammatidae)

Cited by 5 publications

References 26 publications

Effect of Egg Age and Fertility on Some Biological Aspects of Three Trichogramma Species

Effect of Egg Age and Fertility on Some Biological Aspects of Three Trichogramma Species

Potential for controlling codling moth Cydia pomonella (Linnaeus) (Lepidoptera: Tortricidae) in Argentina using the sterile insect technique and egg parasitoids

Possible effects of inter-specific competition on the coexistence of two parasitoid species:Trichogramma brassicaeBezdenko andChelonus oculator(F.) (Hymenoptera: Trichogrammatidae, Braconidae)

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