Pests
Emerald ______ Borer (EAB) is a pest that is expected to land in Portland imminently. They are insects that kill their host tree by drilling holes in the zylem of the tree and girdling them. They have “D-shaped” exit holes and “S-shaped“galleries.
Emerald Ash Borer
The plant part that anchors and stabilizes the plant, stores food, produces growth substances, and takes up water and minerals
Roots!
This person is going to be a dad in late October!
Brandon!
Organic mulch is the best product to use for controlling weeds, moderating soil temperature (cold and hot temps), adding organic material to your garden, and reducing compaction.
(True or False)
True!
The Azalea ______ Bug is the most significant pest for azaleas and rhododendrons
Azalea Lace Bug
The area on the surface of the leaf where carbon dioxide and oxygen are passively exchanged and water is released
stomates or stomata
This employee is a dad to a little dog named Honey
Ren!
Transplanted plants should have their crowns pruned to compensate for reduced root mass.
(True or False)
False! It’s counterproductive.
They should never be top pruned, only thinning cuts should be used, if necessary, to help with tree structure, but only after it’s been in the ground a year.
Exceptions: Dead, dying, broken, or diseased branches
This common insect is known to be parthenogenetic and wingless most of the time.
aphids
A plant hormone that is a gas and is responsible for ripening bananas, tomatoes, and yellowing leaves when a plant‘s roots are drowning in too much water.
ethylene
This employee just got engaged!
Jaylen
When planting a tree, dig a hole twice as deep and wide as the root ball.
(True or False)
False!
A sticky substance that is left behind by sap sucking insects.
Honeydew!
Scientists used to be perplexed by the question of how water is absorbed by plants. The simple laws of physics and chemistry explain how water is transported to the top of the tallest trees on Earth by osmosis, cohesion, adhesion, and finally _________.
Transpiration
97% of water is lost to transpiration
Why? Dissolved minerals and nutrient transport & evaporative cooling
This employee was in the Peace Corps in Africa
Kelsey!
It’s best to water plants in the morning. Watering with cold water during the heat of the day may shock the plant, or worse, create a magnifying glass effect and burn the leaves.
False!
Although it’s best to water in the morning, plants should be watered anytime they exhibit water stress.
The Bronze Birch Borer is devastating Birch trees around town. Which trees are least susceptible:
a) Himalayan Birch
b) European Birch
c) River Birch
D) Paperbark Birch
c) River Birch (Betula nigra) ’Heritage’
D) Paperbark Birch (Betula papyrifera)
The Buddleia (aka Butterfly Bush) we sell must be “sterile.” How do breeders produce sterile cultivars in the Miss, Flutterby, and the Lo&Behold series?
hybridize (Buddliea davidii x Buddliea sp.) or triploidy (colchicine affects meiosis)
- 40,000 seeds/inflorescence
- attracts adult butterflies for nectar
- larval host to only one of 700 native butterflies
- host to marmolated stink bug
This employee rode across the U.S. when he was 18 years old.
Matt!
Organic/natural herbicides are safer than synthetic herbicides
(True or False)
False!
Some examples are pyrethrins, rotenone, nicotine, and neem