Document Type : Scientific-Extensional Article

Author

Department of plant protection Tehran University

Abstract

Biological control, as one of the key components of Integrated Pest Management (IPM), has received special attention from researchers and plant protection specialists in recent decades. With the increasing production and commercialization of biological control agents, the issue of interactions among different biological control agents has gained greater importance, because the success or failure of many field programs depends on the quality and nature of these interactions. These interactions can occur as synergism, antagonism (where one agent weakens the effect of another), or neutrality. The most important groups involved in such interactions include parasitoids, predators, fungi, bacteria, viruses, and entomopathogenic nematodes. This review article aims to investigate the types of positive and negative interactions among biological control agents, the underlying mechanisms of these interactions, the environmental factors affecting them, and their practical implications in pest management. The conclusion of this review indicates that a precise understanding of interaction mechanisms and their consideration in the design of biological control programs can lead to increased efficiency and sustainability of integrated pest management methods.

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