FREE Arborist Questions And Answers
What kind of bacteria are necessary for the creation of humus?
Actinomycetes are necessary for the synthesis of humus. These microorganisms promote decomposition, which is necessary for the production of humus, and boost the soil's ability to act as a buffer. The compost-like component of soil known as humus is composed of partially and fully degraded organic matter.
What percentage of the leaf-bearing crown should be pruned away at the most?
When pruning, no more than 25% of the leaf-bearing crown should be eliminated. Decline might result from the removal of a lot of leaf-bearing branches, especially in elderly trees. No matter how much lower this branch is than the next-lowest branch, the crown, which is the upper section of the tree, starts at the lowest branch. All the leaves and branches are part of the crown.
The primary objective of insect pest control in the Plant Health Care paradigm is
Suppression is the primary objective of insect pest control in the Plant Health Care paradigm. In other words, the goal is to lessen but not completely eliminate pests. Because a suppression method uses less pesticides and spares the tree from damaging shocks, arborists frequently choose it. Really, eradication should only be considered when dealing with the most hazardous and aggressive pests. Practitioners of plant health care make every effort to avert pest infestation and plant harm before additional interventions are required.
Which of the following trees should a lag-threaded rod be used in?
In a tiny tree, a lag-threaded rod would be suitable. Lag-threaded rods shouldn't be utilized in huge, softwood-wooded, or decaying trees. Only machine-threaded rods will work for these trees. The lag-threaded rod is self-anchoring and has fewer threads per inch of rod than the other two types of rod. When using machine-threaded rods, the drilled hole should have a diameter that is one-sixteenth to one-eighth inch greater than the rod.
What kind of knot should be used to fasten the block to the tree when constructing a false crotch?
A cow hitch should be used to fasten the block to the tree when building a false crotch. After tying the knot, the arborist should add two half hitches next to the cow hitch's bight, close to the splice. The working end of the sling is led around the stem, underneath the splice, and then around once again in the other direction to form a cow hitch. Both the tautline hitch and the Blake's hitch are common climbing knots that are used to ascend and descend a climbing line. A girth hitch or English prussic knot is sometimes specifically referred to when the phrase ""prussic hitch"" is used to describe any friction hitch.
How far away from a tree being cut down should an uninvolved worker be?
A worker who is not actively involved should be at least two tree lengths away from a tree that is being cut down. A worker who is participating in the procedure should have a clear path of escape and be at least one tree's length away. Additionally, involved workers should make sure they have a reliable method of getting in touch with the worker at the tree's base. Each person on the scene needs to be aware of their duties and function.
Which of the following measurements offers the best indication of soil fertility?
The most precise measure of soil fertility among the available metrics is cation exchange capacity. Simply put, cation exchange capacity refers to the soil's capacity to collect, store, and exchange cations. Rich in organic matter and clay, fine-textured soil will have a high cation exchange capacity and will generally be more fruitful. It is easier for the soil to deliver minerals and other nutrients to the tree roots when it has a high cation exchange capacity.