Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-26T05:02:31.637Z Has data issue: false hasContentIssue false
  • English
  • Français

Ovicidal Effects of Certain Pesticides on the Two Spotted Spider Mite, Tetranychus urticae and the Predacious Mite, Amblyseius gossipi (Acari: Tetranychidae: Phytoseiidae)

Published online by Cambridge University Press:  19 September 2011

E. M. El-Banhawy  and
A. S. Reda
E. M. El-Banhawy
Affiliation:
Plant Protection Laboratory, National Research Centre, Dokki, Cairo, Egypt
A. S. Reda
Affiliation:
Plant Protection Laboratory, National Research Centre, Dokki, Cairo, Egypt
Get access

Abstract

Different ages of the two spotted spider mite Tetranychus urticae Koch and the predacious mite Amblyseius gossipi El-Badry eggs were exposed to selected concentrations of cypermethrin (500 ppm), flucythrinate (200 ppm), cyfluthrin (100 ppm), fenvalerate (200 ppm), Pyridaphenthion (25 ppm), dicofol (250 ppm), avermectin (10 ppm), and dimilin (50 ppm). Generally, the synthetic pyrethroids were effective on eggs especially those of A. gossipi. Dicofol was rather toxic to T. urticae eggs, while avermectin was only effective on older eggs of both species. Eggs treated with different pesticides at late stages took longer to hatch, particularly in the case of A. gossipi.

Résumé

Des oeufs de different âges de deux mites rouges tachêtées Tetranychus urticae Koch et de la mite repace Amblyseius gossipi El Badry fûrent exposées àdes concentrations variées de cypermethrin (500 ppm), flucythrinate (200 ppm), cyfluthrin (100 ppm), fenvalerate (200 ppm), Pyridaphenthion (25 ppm), dicofol (250 ppm), avermectin (10 ppm) et dimilin (50 ppm). En géneral les pyréthres synthètiques etaient plus efficace sur les oeufs du A. gossipi. Dicofol était toxique sur les oeufs du T. urticae pendant que l'avermectin fût efficace sur les oeufs agés de deux espèces. Dans le case de A. gossipi les oeufs traités avec des pesticides differents ont pris plus de temps pour éclore.

Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 9 , Issue 3 , June 1988 , pp. 369 - 372
Copyright
Copyright © ICIPE 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Campbell, W. C. (1981) An introduction to the avermectins. N.Z. Vet. J. 29, 174–178.Google Scholar
El-Banhawy, E. M. (1980) Comparison between the response of the predacious mite Amblyseius brazilli and its prey Tetranychus desertorum to the different IGRs methoprene and dimilin (Acari: Phytoseiidae, Tetranychidae). Acarologia 21, 221–227.Google Scholar
El-Banhawy, E. M. and Abou-Awad, B. A. (1985) Effect of synthetic pyrethroids and other compounds on the susceptibility and development of the egg stage of the predacious mite Amblyseius gossipi (Mesostigmata: Phytoseiidae). Entomophaga 30, 265–270.Google Scholar
El-Banhawy, E. M. and Anderson, T. E. (1985) Effects of avermectin B1 and fenvalerate on the survival, reproduction and egg viability of the two spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae). Int. J. Acarol. 11, 11–16.Google Scholar
Mellin, T. N., Busch, R. D. and Wang, C. C. (1983) Postsynaptic inhibition of invertebrate neuromuscular transmission by avermectin B1. Neuropharmacology 22, 89–96.Google Scholar
Rock, C. G. (1979) Relative toxicity of two pyrethroids to a predator Amblyseius fallacis and its prey Tetranychus urticae. J. econ. Ent. 72, 293–294.Google Scholar
Roush, T. and Hoy, M. A. (1978) Relative toxicity of permethrin to a predator, Metaseiulus occidentalis and its prey, Tetranychus urticae. Environ. Ent. 71, 287–288.Google Scholar