Seasonal abundance and generation numbers of the California red scale insect, Aonidiella aurantii (MASK.) infesting mango trees in South Egypt [electronic resource].

Includes reference.

The California red scale insect, Aonidiella aurantii (Mask.) is a serious pest of mango trees. As a basic study for developing future management of this scale species, seasonal abundance of different stages of this insect was investigated through two successive years (2005/2006 and 2006/2007) at Armant district, Qena governorate. The obtained results showed that, A. aurantii had four annual overlapping generations occurred in mid-April, mid -June, end September and mid-December in first year. While, it was in mid May, mid-July, mid-October and beginning-January for the second year. Moreover, the percentages of explained variance (E.V.) indicate that all tested variables (maximum temperature, minimum temperature and relative humidity) were together responsible for (22.2, 21.2, 38.8 and 4.7%) and (75.5, 54.3, 31.4 and 29.8%) 1st, 2nd, 3rd and 4th generations, during the two years of study, respectively.

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