Skip to main content
SpringerLink
Log in

Biology and life table of the predacious mite,Agistemus exsertus Gonz. (Acari: Stigmaeidae)

  • Published:
Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz Aims and scope Submit manuscript

Abstract

The predacious mite,Agistemus exsertus Gonz. was reared on 4 types of animal egg diets (eggs ofTetranychus urticae Koch,Eutetranychus orientalis Klein,Brevipalpus pulcher [C. & F.] andBemisia tabaci [Genn.]). Life table parameters of each diet (net reproduction rate [Ro], mean generation time [T], intrinsic rate of increase [rm] and finite rate of increase [erm]) were determined. Eggs ofT. urticae were found to be preferred above other egg diets as food byA. exsertus and promoted a higher rate of oviposition. The intrinsic rate of increase was 0.15 individuals/♀/day; the population multiplied 57.91 times in a generation time of 26.21 days. Rearing on eggs ofB. tabaci exhibited more attractive compared withB. pulcher. The average number of eggs consumed daily by female was 17, 12, 9 and 7 eggs ofT. urticae, E. orientalis, B. tabaci andB. pulcher respectively. In the sex ratio of the progeny, predator females fed inT. urticae andB. tabaci gave rise to more females.

Zusammenfassung

Die RaubmilbeAgistemus exsertus Gonz. wurde im Labor unter Fütterung mit veschiedenen Milben- und Insekteneiern (Tetranychus urticae, Eutetranychus orientalis, Brevipalpus pulcher, Bemisia tabaci) aufgezogen. Die life table-Parameter bei jeder Nahrung (Netto-Reproduktionsrate Ro, mittlere Generationsdauer T, Innere Zuwachsrate rm sowie Gesamt-Zuwachsrate erm) wurden bestimmt. Die Eier vonT. urticae wurden allen anderen Eiern vorgezogen und bewirkten die höchste Eiablege-Rate der Raubmilbe. Die innere Zuwachsrate betrug 0,15 Indiv./♀/Tag. Die Population nahm während der Generationszeit von 26,2 Tagen um das 57,9fache zu. Die Eier vonB. tabaci wurden jenen vonB. pulcher vorgezogen. Die durchschnittliche Zahl der täglich von einem Raubmilben-Weibchen verzehrten Eier betrug 17, 12, 9 und 7 Eier vonT. urticae, E. orientalis, B. tabaci undB. pulcher. Bezüglich des Weibchen-Anteils der Nachkommen brachten Raubmilben-Weibchen bei Fütterung mitT. urticae- undB. tabaci-Eiern die meisten Weibchen hervor.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Birch, L. C., 1948: The intrinsic rate of natural increase on an insect population. J. Anim. Ecol.17, 15–26.

    Google Scholar 

  • El-Badry, E. A., 1967. Three new species of phytoseiid mites preying on the cotton whitefly,Bemisia tabaci in the Sudan (Acarina: Phytoseiidae). Entomologist228, 106–111.

    Google Scholar 

  • El-Badry, E. A.;El-Banhawy, E. M., 1968: Studies on the mating behaviour of the predacious miteAmblyseius gossipi (Acarina: Phytoseiidae). Entomophaga13, 159–162.

    Google Scholar 

  • El-Badry, E. A.;Abo-Elghar, M. R.;Hassan, S. M.;Kilany, S. M., 1969.Agistemus exsertus as a predator of two tetranychid mites. Ann. Ent. Soc. Amer.62, 660–661.

    Google Scholar 

  • El-Bagoury, M. E.;Reda, A. S., 1985:Agistemus exsertus Gonzalez (Acarina: Stigmaeidae) as a predator of the ploughman's spikenard gall mite,Eriophyes dioscoridis (Eriophyidae). Bull. Fac. Agric., Univ. of Cairo36, 571–576.

    Google Scholar 

  • El-Bagoury, M. E.;Hafez, S. M.;Hekal, A. M.;Fahmy, S. A., 1989: Biology ofAgistemus exsertus as affected by feeding on two tetranychid mite species. Annals. Agric. Sci., Fac. Agric., Ain Shams Univ., Cairo, Egypt35, 449–458.

    Google Scholar 

  • El-Banhawy, E. M.;El-Bagoury, M. E., 1991: Biological studies of the predacious miteTyphlodromus pelargonicus, a predator of the two spotted spider miteTetranychus urticae on cucumber plants (Acari: Phytoseiidae; Tetranychidae). Entomophaga36, 587–591.

    Google Scholar 

  • Hafez, S. M.;Rasmy, A. H.;Elsawi, S. A., 1983: Influence of prey species and stages on predatory efficiency and development of the stigmaeid miteAgistemus exsertus. Acarologia24, 281–283.

    Google Scholar 

  • Hanna, M. A.;Shereef, G. M.;Megali, M. K., 1980: Effect of food type on longevity and fecundity of the predator miteAgistemus exsertus Gonzalez (Acarina: Prostigmata),w ith first description of its prelarva. Bull. Soc. Ent. Egypte63, 57–62.

    Google Scholar 

  • Hazan, A.;Gerson, U.;Tahori, A. S., 1973: Life history and life tables of the carmine spider mite. Acarologia15, 414–440.

    Google Scholar 

  • Howe, R. W., 1953: The rapid determination of the intrinsic rate of increase of an insect population. Ann. Appl. Biol.40, 134–151.

    Google Scholar 

  • Kapadia, M. N.;Puri, S. N., 1991: Biology and comparative predation efficacy of three heteropteran species recorded as predators ofBemisia tabaci in Maharashtra. Entomophaga36, 555–559.

    Google Scholar 

  • Soliman, Z. R.;Shehata, K. K.;Gomaa, E. A., 1976: On the food range and economic importance of the predatory mite,Agistemus exsertus Gonzalez (Acari, Prostigmata). Anz. für Schädl., Pflanz., Umwelt.49, 87–90.

    Google Scholar 

  • Swirski, E.;Dorzia, N., 1968: Studies on the feeding developmental and oviposition of the predacious miteAmblyseius limonicus G. & M. (Acarina: Phytoseiidae) on various kinds of food substances. Israel J. agric. Res.18, 71–75.

    Google Scholar 

  • Swirski, E.;Dorzia, N., 1969: Laboratory studies on the feeding development and fecundity of the predacious miteTyphlodromus occidentalis N. (Acarina: Phytoseiidae) on various kinds of food substances. Israel J. agric. Res.19, 143–145.

    Google Scholar 

  • Swirski, E.;Amitai, S.;Dorzia, N., 1967: Laboratory studies on the feeding, development and reproduction of the predacious mitesAmblyseius rubini S. & A. andAmblyseius swirskii A. (Acarina, Phytoseiidae) on various kinds of food substances. Israel J. agric. Res.17, 101–119.

    Google Scholar 

  • Swirski, E.;Amitai, S.;Dorzia, N., 1970: Laboratory studies on the feeding habits, post-embryonic survival and oviposition of the predacious mitesAmblyseius chilenensis Dosse andAmblyseius hibisci Chang (Acarina: Phytoseiidae) on various kinds of food substances. Entomophaga15, 93–106.

    Google Scholar 

  • Teich, Y. 1966: Mites of the family Phytoseiidae as predators of the tobacco whitefly,Bemisia tabaci Gennadius. Israel J. agric. Res.16, 141–142.

    Google Scholar 

  • Wafa, A. K.;Zaher, M. A.;Afifi, A. M.;Gomaa, E. A., 1969: Effect of diet on the development of the predacious mite,Agistemus exsertus Gonzales (Acarina: Stigmaeidae). Z. ang. Ent.63, 382–388.

    Google Scholar 

  • Yousef, A. A.;Zaher, M. A.;Abd El-Hafiez, A. M., 1982: Effect of prey on the biology ofAmblyseius gossipi El-Badry andAgistemus exsertus Gonzalez (Acarina: Phytoseiidae, Stigmaeidae Z. ang. Ent.93, 453–456.

    Google Scholar 

  • Zaher, M. A.;Afifi, A. M.;Gomaa, E. A., 1971: Survey and biology ofAgistemus exsertus Gonzalez in U.A.R., with description of the immature stages (Stigmaeidae: Acarina). Z. ang. Ent.67, 272–279.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Plant Protection Department, National Research Centre, Dokki, Cairo, Egypt

    B. A. Abou-Awad & S. A. Elsawi

Authors
  1. B. A. Abou-Awad
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. S. A. Elsawi
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

With one table

Rights and permissions

Reprints and permissions

About this article

Cite this article

Abou-Awad, B.A., Elsawi, S.A. Biology and life table of the predacious mite,Agistemus exsertus Gonz. (Acari: Stigmaeidae). Anz. Schadlingskde., Pflanzenschutz, Umweltschutz 66, 101–103 (1993). https://doi.org/10.1007/BF01906820

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01906820

Keywords

Search

Navigation