Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Plant Sciences
Managing Suckers Around Fruit Trees, Samuel Johnson, Teryl Roper, Xin Dai
Managing Suckers Around Fruit Trees, Samuel Johnson, Teryl Roper, Xin Dai
All Current Publications
Many types of fruit trees produce suckers around the base of the tree. Crown suckers arise in the area immediately surrounding the tree trunk (Photo 1), and root suckers can arise from roots further away from the trunk. Not only are suckers around trees unsightly, but they can also harbor insect pests like wooly apple aphid and provide points of entry for diseases like fire blight. If suckers are profuse, they interfere with in-row weed management and can absorb systemic herbicides such as glyphosate. Some rootstocks used for fruit trees such as M.7 for apples and Mazzard for cherries are …
Quantifying Tree Hydration Using Electromagnetic Sensors, Lance V. Stott, Brent Black, Bruce Bugbee
Quantifying Tree Hydration Using Electromagnetic Sensors, Lance V. Stott, Brent Black, Bruce Bugbee
Plants, Soils, and Climate Faculty Publications
An automated method of determining tree water status would enable tree fruit growers, foresters and arborists to reduce water consumption, reduce orchard maintenance costs and improve fruit quality. Automated measurements could also be used to irrigate based on need rather than on fixed schedules. Numerous automated approaches have been studied; all are difficult to implement. Electromagnetic sensors that measure volumetric water content can be inserted in tree trunks to determine relative changes in tree water status. We performed automated measurements of dielectric permittivity using four commercially available electromagnetic sensors in fruit tree trunks over the 2016 growing season. These sensors …