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Cliff Sadof, Purdue University entomologist, discusses everything from the parallels of insect infestations to COVID-19, to the latest information available on forest and wood pests in North America for this EAB University webinar presentation.
Six elements are required in small amounts for the growth and development of plants. These are referred to as micronutrients: iron (Fe), manganese (Mn) copper (Cu), zinc (Zn), molybdenum (Mo), and boron (B).
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.
Sonic tomography, or the use of sound waves to detect decay in trees, is a relatively new technology available to arborists.
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.
This is an example of how a historic landscape and public garden used GIS to map, track, and monitor tree health on their grounds.