الفهرس 
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Abstract
The obtain results may permit us to conclude many outstanding points as follows:
1- The efficacy of the tested essential oils and their mixtures against Varroa mite could be arranged according to their effect on reduction percentage of the parasitie mite on adult bees in the following descending order: the oil mixture of cinnamon and clove> marjoram oil> thymol oil >cinnamon oil. While the efficacy of these tested oils on infection of the brood of the treated colonies was with either clove oil or the oil mixture of cinnamon and eucalyptus showed more positive effect in disinfection of brood from Varroa, followed by cinnamon oil and then the oil mixture of marjoram and eucalyptus
2- With looking to positive and negative effect of the applied essential oil on performance of the treated bee colonies, the oil mixture of marjoram and cinnamon showed a highest positive effect on most activities of the colonies, larvae viability, time to queen supersedure, daily rate of egg laying ,longevity of the workers and honey production . clove oil occupied the next rank , followed by thymol oil .
3- With using the half or quarter dosage concentration of the applied oils, the efficacy of the tested oils were similar although clove oil showed more efficacy than thymol oil followed by cinnamon oil.
4- Evaluation of the applied oils from economically view (the added value by L.E due to excess of bees, brood and honey) indicated that cinnamon oil recorded the highest annual profit/colony, followed by clove oil and then thymol oil.
5- Treatment of Varroa infested colonies with the different features of the plant products indicated that fumigations was more efficient than spraying while treatment with dusting of the powder of these materials recorded the lowest efficacy.
6- Treatment with pomegranate fumigant at the rate of 20 g / colony resulted in the highest efficacy against Varroa mite, followed by garlic at the rate of 15g/colony, Egyptian thorn at the rate of 15 g/colony and then marjoram at the rate of40g/colony.
7- Spraying with extract of garlic at the rate of 15g/colony showed the highest efficacy against Varroa mite followed by pomegranate at the rate of 20g/colony, and then black-cumin at the rate of 20g/colony .
8- Among the tested plant products used for dusting the infested bee colonies, powder of pomegranate at the rate of 20g/colony recorded the highest efficacy against Varroa mite, followed by harmal at the rate of 15g/colony and then black –cumin at the rate of 20g/colony .
9- Using of essential oil or plant products in controlling Varroa mite through IPM program seem to be a suitable way for fighting this mite, hence these materials are available, friendly to environment, easy in application, and economically cheap.