Most “sick tree” problems can be traced back to underlying stresses that have reduced the tree's vigor, making it more vulnerable to diseases or insect pests.
The first Tree School Online session debuted with 300 registered participants. Since then, the live classes have rolled out with anywhere from 50 to 100 participants.
Many people think of shade or woodland gardens when they think of growing native plants. In fact, many woodland plants do very well in garden settings. But careful selection and care is essential to making your woodland garden flourish.
Linda R. McMahan |
Jun 2010 |
Article
Photo provided by Rowan Steele. (Cropped from original)
Degree-day models are tools that can help farmers predict development stages for plants, pests and plant pathogens. By measuring the accumulation of heat units, the models can help farmers decide what to plant and when.