الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
Objectives: 1. Evaluate some medicinal plants as beneficial insectary plants. 2. Usage of the flowering plant species to increase the efficiency of the natural enemies. 3. Evaluate the relative attractiveness of some natural enemies. Methods & Results The present study had been done by conducting field experiments to evaluate the attractiveness of some medicinal plants to insect prdator and parasitoids by using sweep net and yellow sticky trap. Also, to estimate the influence of adding floral resource plants on some pests in peen and soybean fields. The effect and the relative attractiveness of some natural enemies to colors and odor of the tested floral plants. The obtained results could be summarized as follows: 1- S. corrollae, Chry. carnea and C. undeciumpunctata exhibited the highest attractiveness to the winter flowering plants (chamomile, coriander and fennel). 2- The main common predators inhabiting the summer flowering plants (sweet basil and geranium) were C. undeciumpunctata, Orius sp. and S. corrollae. 3- These results help in selection of plant to enhance biological control. However, chamomile, were more preferred by S. corrollae, the coccinellid beetles, C. undeciumpunctata preferred both coriander and fennel while, Chry.carnae preferred fennel ,and caraway plants. 4- The winter and summer flowering plants are alternative hosts allow predators and parasitoids to increase their numbers and consequently to apply a higher pressure on pest populations. 5- Flower color appears to be a critical factor in the choice of plant used to enhance biocontrol. 6- Flower nectar approved to an important factor factor for attracting natural enemies. So, the use of plant voletiles technology as an additional tool in intergrated pest management program by developing of baits that attract beneficial organisms. Conclusion These results proved that the winter and summer flowering plants are alternative hosts allow predators and parasitoids to increase their numbers and consequently to apply a higher pressure on pest populations.