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Bartlett: Needle Diseases of Conifers

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. Disease severity and corresponding...

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9/15/21
Exotic Invasive Forest Pests in the Age of COVID-19 and Q&A

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.

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4/20/20
Bartlett: Micronutrient Deficiencies

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). Only two of these, iron and manganese, are...

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3/10/20
Bartlett: Sonic Tomography

Sonic tomography, or the use of sound waves to detect decay in trees, is a relatively new technology available to arborists.  This technology uses the differential speed of sound as it moves through solid wood, decayed wood, or hollow space to create a...

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1/15/20
Oak decline in the United States

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. Oak decline occurs more commonly among red oak species, but white oaks are susceptible as...

Resource
10/14/19
BHS: Preventing Bites and Stings

Fall is a beautiful and often very busy season for Gardens and Arboretums, with many guests visiting to enjoy cooler weather, Fall colors, and other seasonal events. Fall is also a busy season for staff working outside in preparing the landscape for...

Resource
10/8/19
Green-Wood Cemetery GIS Project

This is an example of how a historic landscape and public garden used GIS to map, track, and monitor tree health on their grounds. The presentation highlights how one might be able to use GIS at their public garden and some of the key features GIS...

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10/31/18