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Needlecast and needle blight are terms applied to a variety of foliage disorders of many coniferous species. These diseases are usually more severe on young trees or on trees growing outside of their natural range.
Oak decline is a slow-acting disease complex that involves the interaction of biotic and abiotic factors such as climate, site quality and advancing tree age.
Insect and disease infestations pose major threats to several North American forest tree species.
Sunflower is a unique model species for assessing crop responses and adaptation to climate change. We provide an initial assessment of how climate change may influence the abiotic and biotic environment of cultivated sunflower across the world.
This is an example of how a historic landscape and public garden used GIS to map, track, and monitor tree health on their grounds.
Foresters and horticulturists should be aware of the risks of invasive species and should be updated on a regular basis regarding emerging pest threats.