TITLE

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

AUTHOR(S)
Afifi, Amal I.; El Arnaouty, Said A.; Attia, Angel R.; Alla, Asmaa EL-Metwally Abd
PUB. DATE
March 2010
SOURCE
Pakistan Journal of Biological Sciences;2010, Vol. 13 Issue 5, p216
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The coccinellid predator, Cryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae) was used to control the citrus mealybug, Planococcus cirri (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. cirri, 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 cirri infesting croton shrubs. In the second season, 2009 there is no mealybug, P. cirri individuals were found on the croton shrubs.
ACCESSION #
49760792

 

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