Sensor systems for communications between heavy equipment machines during tree felling operations. A system includes a first heavy equipment comprising a first winch and a second heavy equipment comprising a second winch. The system includes a first cable attached to the first winch and a fulcrum roller and a second cable attached to the second winch and the fulcrum roller. The system is such that the first heavy equipment communicates with the second heavy equipment by way of long-range radio signals.

Sensor systems for communications between heavy equipment machines during tree felling operations. A system includes a first heavy equipment comprising a first winch and a second heavy equipment comprising a second winch. The system includes a first cable attached to the first winch and a fulcrum roller and a second cable attached to the second winch and the fulcrum roller. The system is such that the first heavy equipment communicates with the second heavy equipment by way of long-range radio signals.

A rope ring with a wear indicator. The typical ring is toroidal in shape. The wear indicator is a pair of opposed annular grooves in the side walls optionally spaced from the hole edge. As the ring wears, the hole diameter increases at points along either hole edge. In one method, maximum wear occurs when the hole wall edges form one or more indentations in either groove. In another method, maximum wear occurs when either groove is severed at one or more points on the groove. Optionally, the grooves are filled with a coloring agent to provide greater visibility to the wear indicator.

Sensor systems for communications between heavy equipment machines during tree felling operations. A system includes a first heavy equipment comprising a first winch and a second heavy equipment comprising a second winch. The system includes a first cable attached to the first winch and a fulcrum roller and a second cable attached to the second winch and the fulcrum roller. The system is such that the first heavy equipment communicates with the second heavy equipment by way of long-range radio signals.

Sensor systems for communications between heavy equipment machines during tree felling operations. A system includes a first heavy equipment comprising a first winch and a second heavy equipment comprising a second winch. The system includes a first cable attached to the first winch and a fulcrum roller and a second cable attached to the second winch and the fulcrum roller. The system is such that the first heavy equipment communicates with the second heavy equipment by way of long-range radio signals.

A forestry management device is provided including processing circuitry configured to receive an indication of a selected tree, receive selected tree location data associated with the selected tree, receive operator location data associated with an operator, and cause information associated with the selected tree to be displayed on a wearable computing device.

A forestry management device is provided including processing circuitry configured to receive an indication of a selected tree, receive selected tree location data associated with the selected tree, receive operator location data associated with an operator, and cause information associated with the selected tree to be displayed on a wearable computing device.

The first embodiment of the tool for girdling the trunk of a tree includes an elongated and horizontally disposed handle having first and second ends. The tool also includes a horizontally disposed cutting blade support having a first elongated arm portion and a curved arm portion. The first elongated arm portion is pivotally connected to the handle intermediate the lengths thereof. A linkage also pivotally connects the second end of the handle to the first end of the first elongated arm portion. A cutting blade carriage is selectively movably secured to the curved arm portion to compensate for various tree trunk diameters. A second embodiment of the tool includes an elongated handle which is adjustably secured to a cutting blade support which has a cutting blade secured thereto which is forced into engagement with the tree trunk by a spring arm.

A spreading device, a powder-like mixture composition and a method tor spreading the composition for control or prevent forest pathogens on tree stumps are disclosed.

A spreading device, a powder-like mixture composition and a method tor spreading the composition for control or prevent forest pathogens on tree stumps are disclosed.