Whenever possible, please give credit to the authors. January 11, 2001. Jackson County Ag. Strawberry in-service training.
New weapons emerge periodically in the age-old battle against plant diseases.
The arsenal now includes such diverse weapons as novel genes transferred via biotechnology, new fungicidal chemistry such as the strobilurin compounds, and compounds that activate a plant's own defense system. The plant's defensive reaction is the topic of this article. Plants do not have an immune system such as humans and animals posses, but plants definitely have an immediate, complex, induced defense response against pest and pathogen invaders. The plant SAR has several distinguishing characteristics. First, it is an induced or activated plant reaction of host defense mechanisms in response to stimuli such as an invading bacterium.