The seven-spotted ladybird, Coccinella septempunctata L. (Coleoptera : Coccinellidae) was released for one time, at early-February on chrysanthemum plants during the two successive seasons 2013 and 2014, at Giza Governorate at rates of 30, 60 and 90 eggs/plant. On chrysanthemum plants: during the first season (2013), the reduction percentages in the population of Macrosiphoniella sanborni (Gillete) increased gradually with elapse of time reaching the maximum. The achieved average reductions in aphid population, were 21.9, 39.3, 46.3, 53.3 and 60.4% on mid-February, first-March, mid-March, first-April and mid-April (2013), respectively in the first level of release (30 eggs/plant). The same trend was achieved in the second season tested (2014). Also, in the second level of release (60 eggs/plant) during the first season (2013), the reduction percentages in the population of M. sanborni increased gradually with elapse of time reaching the maximum. The achieved average reductions in aphid population were 39.2, 50.1, 57.3, 61.9 and 71.4% on mid-February, first-March, mid-March, first-April and mid-April, respectively. The same trend was achieved in the second season (2014). The same trend was observed with the third level of release (90 eggs/plant), the reduction percentages in the population of M. sanborni increased gradually with elapse of time reaching the maximum. The achieved average reductions in aphid population were 40.7, 62.1, 70.4, 78.3 and 86.8% on mid-February, first-March, mid-March, first-April and mid-April, respectively. In addition, the same trend was achieved in the second season (2014). The present work has shown that the seven-spotted ladybird, C. septempunctata L. could used successfully, as a biocontrol agent in an integrated program for controlling M. sanborni on chrysanthemum plants.

Experiments were carried out to study the effect of rose (Rosa gallica) flowers color on the infestation of adults and nymphs of the rose aphid, Macrosiphum rosae (Linnaeus),(Aphididae, Hemeptera). Using five varieties of rose similar in the horticulture characters but different in the flowers color only. Carmen (red), Virginia (white), Freedom (yellow), Queen (blue) and Dream (pink) Experiments were done in two locations El-Orman Garden, Giza Governorate and International Garden, Cairo Governorate throughout 2015season. In both Governorates (Giza and Cairo), the infestation with the rose aphid adults began to appear on the 1 st February and recorded the activity peak during April then decreased until beginning of August. The flowers color of R. gallica may arrange for attracted the rose aphid adults, as follow: yellow, red, blue, pink and white, respectively. Statistical analysis showed that highly significant differences between the five flowers color (varieties) of R. gallica on the attraction of adults of the rose aphid, M. rosae. In the same trend, the infestation with the rose aphid nymphs began to appear on February and increase gradually lasting to the first pike in April, then the population began decreased until beginning of August. It can be arranging the flowers color of R. gallica for attract of the rose aphid (nymphs) as follows: yellow, red, blue, pink and white. Statistical analysis showed that highly significant differences between the five flowers color (varieties) of R. gallica on the attraction of M. rosae nymphs.

This study was carried out to study the biology and life table parameters of Duranta aphid, Aphis durantae Theobald under laboratory conditions throughout three different temperatures degrees (winter, spring and summer) during 2018 year. Data obtained showed that the spring season more suitable for A. durantae living (biology) more than winter and summer seasons, respectively. This showed clearly from life table's parameters which showed that the nymphal stages of A. durantae in spring season were less than in winter and summer, respectively. Also, life cycle, mean generation time, live span and longevity duration in spring season were less than in winter and summer seasons respectively. Lastly, the important parameter in the life table, intrinsic rate of increase (rm) in spring season was more than in winter and summer seasons, respectively.

Experiments were carried out to study the effect of infestation by Macrosiphum rosae (L.) and Frankliniella occidentalis (Pergande) on the morphological characters of eight rose varieties (four local var. and four import var.).Experiments were done in El-Orman garden, Giza Governorate throughout two years (2004 and 2005). Results indicated that the all the morphological characters (colour of the flower, number of the petals per flower, the flower diameter, weight of the flower, the stem length, colour of the leaves, vase life and annual production) were reduced after infestation by the two pests. The effect of M. rosae was higher than the effect of F. occidentalis, the results also indicated that the infestation by the two insects concentrated on the vascular bundles and barynshema in the tissue of the rose petals and occurs damage in these parts.

The journal of Toxicology and pest control is one of the series issued twice by the Egyptian Academic Journal of Biological Sciences, and is devoted to publication of original papers related to the interaction between insects and their environment. The goal of the journal is to advance the scientific understanding of mechanisms of toxicity. Emphasis will be placed on toxic effects observed at relevant exposures, which have direct impact on safety evaluation and risk assessment. The journal therefore welcomes papers on biology ranging from molecular and cell biology, biochemistry and physiology to ecology and environment, also systematics, microbiology, toxicology, hydrobiology, radiobiology and biotechnology. www.eajbs.eg.net