Advertisement

International Journal of Tropical Insect Science

, Volume 35, Issue 3, pp 132–136 | Cite as

Infestation by Bemisia tabaci (Hemiptera: Aleyrodidae) and incidence of whitefly-transmitted viruses after the application of four biorational insecticides in some crops in Egypt

  • Shaaban Abd-Rabou
  • Alvin M. SimmonsEmail author
Short Communication

Abstract

Bemisia tabaci (Gennadius) is a global insect pest that transmits many important plant viruses. A field study was conducted on infestation by B. tabaci and incidence of whitefly-transmitted viruses after the application of selected foliar and seed-treated biorational insecticides in seven vegetable and row crops in Egypt. Three foliar insecticides (Actara, Biofly and Neemix) and a treated check (Actellic) were assayed across three weeks on seedlings and mature plants, and two seed-treated insecticides (Actara and Gaucho) and a treated check (Aldicarb) were assayed on seedlings. All of the foliar insecticides led to 60–100% reductions in whitefly infestations in each crop. Biofly and Neemix were the least efficacious insecticides. Incidences of whitefly-transmitted viruses were reduced in each insecticide-treated plot with seedlings of four crops; however, no effect on virus incidence was observed in the experiment with mature plants. Crops of cucumber, eggplant, squash and tomato displayed symptoms characteristic of Cucumber vein yellowing virus, Squash leaf curl virus or Tomato yellow leaf curl virus; however, no symptoms of whitefly-transmitted viruses were observed in green bean, potato or sugar beet. The results show that several biorational insecticides may suppress whitefly populations in seedlings to delay whitefly-transmitted viruses in some vegetable crops in Egypt.

Key words

biopesticide crop protection insecticide integrated pest management sweetpotato whitefly vegetable virus infection 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Abd-Rabou S. (1999) New records on whiteflies in Egypt. Journal of Agricultural Research 77, 1143–1146.Google Scholar
  2. Abd-Rabou S. and Simmons A. M. (2010) Survey of reproductive host plants of Bemisia tabaci (Hemiptera: Aleyrodidae) in Egypt, including new host records. Entomological News 121, 456–465.CrossRefGoogle Scholar
  3. Al-Musa A., Anfoka G., Misbeh S., Abhary M. and Ahmad F. H. (2008) Detection and molecular characterization of Squash leaf curl virus (SLCV) in Jordan. Journal of Phytopathology 156, 311–316.CrossRefGoogle Scholar
  4. Bacci L., Crespo A. L. B., Galvan T. L., Pereira E. J. G., Picanço M. C., Silva G. A. and Chediak M. (2007) Toxicity of insecticides to the sweetpotato whitefly (Hemiptera: Aleyrodidae) and its natural enemies. Pest Management Science 63, 699–706.CrossRefGoogle Scholar
  5. Desneux N., Decourtye A. and Delpuech J.-M. (2007) The sublethal effects of pesticides on beneficial arthropods. Annual Review of Entomology 52, 81–106.CrossRefGoogle Scholar
  6. Dinsdale A., Cook L., Riginos C., Buckley Y. M. and De Barro P. (2010) Refined global analysis of Bemisia tabaci (Hemiptera: Sternorrhyncha: Aleyrodoidea: Aleyrodidae) mitochondrial cytochrome oxidase 1 to identify species level genetic boundaries. Annals of the Entomological Society of America 103, 196–208.CrossRefGoogle Scholar
  7. EPA [United States Environmental Protection Agency] (2010) Agreement to terminate all uses of Aldicarb, August 2010 [online], http://yosemite.epa.gov/opa/admpress.nsf/0/29F9DDDEDE97CAA88525778200 590C93Google Scholar
  8. Farag A. G., Amer M. A., Amin H. A. and Mayzad H. M. (2005) Detection of bipartite geminiviruses causing Squash leaf curl disease in Egypt using polymerase chain reaction and nucleotide sequence. Egyptian Journal of Virology 2, 239–354.Google Scholar
  9. Henderson C. E and Tilton E. W. (1955) Tests with acaricides against the brown wheat mite. Journal of Economic Entomology 48, 157–161.CrossRefGoogle Scholar
  10. Jones D. (2003) Plant viruses transmitted by whiteflies. European Journal of Plant Pathology 109, 197–221.CrossRefGoogle Scholar
  11. Mansour A. and Al-Musa A. (1993) Cucumber vein yellowing virus: host range and virus vector relationships. Journal of Phytopathology 137, 73–78.CrossRefGoogle Scholar
  12. Mazyad H. M., Omar E., Al-Taher K. and Salha M. (1979) Observations on the epidemiology of tomato yellow leaf curl disease on tomato plants. Plant Disease Reporter 63, 695–698.Google Scholar
  13. SAS Institute (2010) SAS/STAT version 9.3. SAS Institute, Cary, NC.Google Scholar
  14. Simmons A. M. and Abd-Rabou S. (2011) Populations of predators and parasitoids of Bemisia tabaci (Hemiptera: Aleyrodidae) after the application of eight biorational insecticides in vegetable crops. Pest Management Science 67, 1023–1028.CrossRefGoogle Scholar

Copyright information

© ICIPE 2015

Authors and Affiliations

  1. 1.Ministry of Agriculture, Agricultural Research CentrePlant Protection Research InstituteDokki, GizaEgypt
  2. 2.US Vegetable Laboratory, US Department of Agriculture (USDA)Agricultural Research ServiceCharlestonUSA

Personalised recommendations