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The effect of some essential oils taken from Cinnamomum zeylanicum, Citrus limonum and Rosmarinus Officinalis was investigated in relation to the growth of bacteria Paenibacillus larvae which causes American Foulbrood disease that affects world hon ey bees Apis mellifera L. The study was carried out in the laboratories of the Faculty of Agriculture, Damascus University from 2012 till 2013. This is in order to contribute to preparing an integrated pest management program for American Foulbrood disease. The oils were extracted from the plants using steam distillation. The effects of the concentrations of oils on the growth of P. larvae were tested between (3.90625 - 500 μg/ml) using agar disc diffusion in petri plates. Results showed that the essential oils used stop the growth of P. larvae in some of their concentrations. The minimal inhibitory concentrations which stop the growth of P. larvae of the oils of Cinnamomum zeylanicum, Citrus limonum and Rosmarinus officinalis were recorded at 31.25 μg/ml, 62.5 μg/ml, 125 μg/ml respectively.
Husbandry of the medicinal and aromatic plants in general and “Rosemary” in particular is considered of the alternative economical husbandry that flourished recently in Syria due to the availability of the natural and environmental conditions there to; in addition to the good economical yield thereof. Interest, encouragement, development, and expansion of such husbandry are considered of the most important targets set for the future strategy of agricultural development in Syria. This Research has targeted to the realization of the following purposes : 1- Analysis of the costs of Rosemary production in Lattakia Governorate. 2- The economical evaluation for Rosemary production in Lattakia Governorate. The research concluded to the following: 1) The achieved annual net profit of one dunum planted with Rosemary in Lattakia Governorate has amounted to SYP /200799.48/. 2) The farming revenue of one dunum planted with Rosemary in Lattakia Governorate has amounted to SYP /206901.84/. 3) The total Economical Feasibility from Rosemary husbandry in Lattakia Governorate has amounted to 3,02
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