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Pakistan Journal of Biological Sciences

Year: 2010 | Volume: 13 | Issue: 5 | Page No.: 216-222
DOI: 10.3923/pjbs.2010.216.222

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Authors


Amal I. Afifi

Country: Egypt

Said A. El Arnaouty

Country: Egypt

Angel R. Attia

Country: Egypt

Asmaa EL-Metwally Abd Alla

Country: Egypt

Keywords


  • Cryptolaemus montrouzieri
  • Biological control
  • citrus mealybug
  • Planococcus citri
  • coccinellid predator
Research Article

Biological Control of Citrus Mealybug, Planococcus citri (Risso.) using Coccinellid Predator, Cryptolaemus montrouzieri Muls.

Amal I. Afifi, Said A. El Arnaouty, Angel R. Attia and Asmaa EL-Metwally Abd Alla
The coccinellid predator, Cryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae) was used to control the citrus mealybug, Planococcus citri (Risso.) (Homoptera: Pseudococcidae) on the croton ornamental shrubs, Codiaeum variegatum L. at Giza governorate, Egypt. Cryptolaemus montrouzieri Mulsant, 50 adults/Croton shrub, were released once on October 27, 2008 in the open field. Obtained results indicated that percentages of reduction among the egg masses, nymphs and adults of P. citri, one month after releasing the predator reached to 41.5, 42.3 and 57.5%, respectively. Two months later, the corresponding rates were 80.6, 86.5 and 91.5%. Finally, after three months of releasing the predator, reduction rates reached to 100% for all stages of the pest. The associated natural enemies in the field were consisted of three predaceous insects and one parasitic species. The insect predators secured were the hemerobiid predator, Sympherobius amicus Navas; the coccinellid predator, Scymnus syriacus (Mars.) and the chrysopid predator, Chrysoperla carnea (Stephens). The parasitic species was the encyrtid, Coccidoxenoides peregrinus (Timberlake). The aforementioned natural enemies were found feeding on the citrus mealybug, Planococcus citri infesting croton shrubs. In the second season, 2009 there is no mealybug, P. citri individuals were found on the croton shrubs.
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How to cite this article

Amal I. Afifi, Said A. El Arnaouty, Angel R. Attia and Asmaa EL-Metwally Abd Alla, 2010. Biological Control of Citrus Mealybug, Planococcus citri (Risso.) using Coccinellid Predator, Cryptolaemus montrouzieri Muls. Pakistan Journal of Biological Sciences, 13: 216-222.

DOI: 10.3923/pjbs.2010.216.222

URL: https://scialert.net/abstract/?doi=pjbs.2010.216.222

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