biological control agent معنى"biological control agent" أمثلة على "biological" معنى "biological control" معنى "control" معنى "agent" معنى "biological agent" معنى "biological warfare agent" معنى "biological control agents" معنى "biological control arthropods" معنى "biological control organisms" معنى "biological pest control" معنى "biological pest control agents" معنى "biological pest control insects" معنى "biological pest control wasps" معنى "international organization for biological control" معنى "chemical and biological arms control institute" معنى "project on the biological control of tsetse flies by the sterile-insect technique" معنى "agent" معنى "biological" معنى "control" معنى "adhesive agent" معنى "advertising agent" معنى "agent (economics)" معنى "agent (grammar)" معنى "agent 47" معنى "agent aika" معنى أمثلة This is done by getting rid of open sources of water, or if this is not possible, by adding insecticides or biological control agents to these areas.
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