�
Draw a picture
of a birch leaf miner injury.�������� Diagram
symptom of freshly laid eggs in leaf.
Is this a
serpentine, or a blotch leafminer?
How many
generations does it have per year, and when does the first generation occur?
How do you
distinguish leaf mining injury from scorch in the field?
When is the most
effective time to get insecticide on a leaf to control a leaf miner in relation
to the time of the mining and the number of generations it has per year?
What systemic
insecticides can be used to control this pest and how are they applied?
Draw a native
holly leaf miner mine.���� Is this a
serpentine or a blotch mine?
Draw a
cicada.�� Where do they feed as
immatures, and adults.� Illustrate its
injury.
Discuss
differences in the biology and appearance of the annual and periodic cicada,
and their control strategy.
Diagram the
injury a twig girdler and a twig pruner.
How does this
injury affect plant health?
Draw a northern
pine weevil and a Pales weevil.����������� Diagram
how they injure a twig.
What conditions
are required for this beetle to complete its life cycle, and how would this
affect where you would find it in the landscape?
How can you
interrupt its life cycle, with insecticides and or other tactics?
How does the
injury, biology and control of the white pine weevil differ from Pales and
northern pine weevils?
Draw European
pine shoot moth injury.�
How does it spend
the winter?��� Where does the
overwintering generation feed in April?
Where does the
summer generation� feed in June?�
�When is the best time to control this pest
and what kind of insecticide would you use?
What trees are
attacked by Zimmerman pine moth?
What is its life
cycle? When should this pest be controlled?
What symptoms
should you look for on a plant?
How would the
management plan on a Christmas tree farm differ from that on a nursery?
Why?
Zimmerman pine
moth outbreaks usually follow periods of drought stress.� Why?
�
Draw a clearwing
borer moth.�
What is a
pheromone trap and how is it used for timing chemical sprays for control of
clearwing moths?�
How does timing
for chemical controls differ from that for entomophagous nematodes (see text p.
137)
To
date, entomophagous nematodes have been most successful for lepidopterous
borers that attack the lower parts of trees.�
Refer to page 138 in the text and list which borers are the best
candidates for successful use of nematodes.
How does plant
stress promote borer problems, and how can you apply this information in the
landscape?
Describe how
sanitation can be used to reduce pest problems with borers.
How can you use
tree wraps and NOT cause a problem with clear-wing borers?
Self Study
Guide (in addition to identification of samples)
�