Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
Why so people prune?
|
-improve plant health
-increase light and air cirulation in canopy -dead, dying, damaged, diseased, derranged -remove suckers and water sprouts -enhance flowering or fruiting |
|
|
What helps prevent unnecessary pruning before getting a plant?
|
-select plants with desired features at maturity
-consider branch spacing -structural strength and safety -work with natural form of tree/shrub |
|
|
What are the V, U, and R sayings for limb shape in terms os safety?
|
-V= Very bad
-U= Ultimate -R= Right on/choice! |
|
|
What happens to tree in V cuts?
|
-bark becomes embedded or included in tree healing
|
|
|
What happens to tree in U cuts?
|
-forms ridge bark at cut
|
|
|
What are some pruning techniques?
|
-heading back (use drop-crotching or pinching)
-raising the crown -crown reduction -thinning |
|
|
What is drop-crotching?
|
-pruning back to a fork where there is a live branch (better form of heading back)
|
|
|
What is pinching in pruning?
|
-removal of soft new growth of branch tips with fingers
|
|
|
How much of the crown should you retain when "raising the crown"?
|
-67% of crown
|
|
|
How do you perform a proper pruning cut for larger limbs?
|
-Make a cut under limb partway through branch above final cutting area
-make second cut PAST 1st cut to remove large portion of limb -make final but at bark ridge for proper healing |
|
|
What is thinning?
|
-complete removal of branches back to a lateral branch or main trunk
|
|
|
When are trees best pruned?
|
-in dormant season following growth flush
|
|
|
What can happen if trees are pruned at times other than in dormancy?
|
-water sprouts occur
|
|
|
When should plants be pruned that set bud the previous year?
|
-right after they flower
-ex: lilac |
|
|
When should plants that flower in current growth?
|
-while still dormant
|
|
|
What are three forms of specialized pruning?
|
-espalier
-topiary -bonsai/penjing |
|
|
What is espalier and what is it used for?
|
-creation of 2-dimensional plants
-used for fruit production (especially apples and pears) -used to conserve space -used to make use of "microclimate" |
|
|
What are some common espalier shapes?
|
-fan
-trangle -fountain -diamonds -candelabra |
|
|
Where did "Bonsai" begin and what was/is it known as?
|
-in China!
-called Penjing *Began in Han Dynasty 2000 years ago and introduced to Japan in 14th century |
|
|
What is problematic about Bonsai trees purchased in grocery stores?
|
-they are temperate trees that require dormancy period, which customers don't know. They never let it get dormant so tree dies.
|
