The two investigated plants, sweet marjoram (Origanum majorana L.) and sweet basil (Ocimum basilicmum L.) plants are considered the most important medicinal and aromatic plants. They are infested with many mites specially, the Tetranychus urticae Koch during growing season which cause considerable damage in the crop under Egyptian conditions. The present study was conducted during 2014 & 2015 seasons for sweet marjoram and sweet basil plant species at Giza governorate to survey the mite infesting these two crops at both governorates, the population fluctuations of the most important key mite and their relation to the a biotic factors (Mean temperatures & mean relative humidity as well as their associated predator, Neoseiulus californicus as biotic factor. Survey of mite species T, urticae (larvae, nymphs & adults) and predator species were recorded on sweet marjoram and sweet basil at Giza governorate. These factors gave different correlations with the population activity at Giza governorate and both host plants. We present the results of a two-year study on the population dynamics of T. urticae, as well as the association between weather parameters and the seasonal population trends of T. urticae. The objective of the present study was to find out the cause of mite outbreaks under the different climate condition and its predator effect as biotic agent.
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 Provided for non-commercial research and education use. Not for reproduction, distribution or commercial use.
the individuals fed on F. oxysporum at 35°C than on A. flavus at 15 and 25°C. Also, the number of deposited eggs by females of G. ornatus was obviously increased when females reared on yeast at 25°C than any other diets and temperatures.
El-Nasr and Dekirnes (7 species), El-Sinbilawein (6 species) and El-Manzala (5 species). The dominant species of different tested regions in this study was the acarid mite, T. putrescentiae.
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