1. If possible,
begin the unit by reading a book about insects out loud.
2. Ask students to list insects that live in this area. Write the
names on the board. Ask students if they know what these insects
do - bees spread pollen, caterpillars turn into butterflies, etc.
It's doubtful the students will mention the Glassy-Winged Sharpshooter,
with its long and difficult name.
3. Write Glassy-Winged Sharpshooter on the board and say it out
loud. Talk about the three different words that make up its name,
and what each of them means. Ask the students if they've ever seen
one. If they say they have, ask them how big it is, what color,
etc.
4. Have the students draw what they think the insect would look
liked, based on its name.
5. Compare their drawings and ideas with the real thing. Show a
large photo of the insect, or a slide. If possible, pass out a vial
with a GWSS in it.
B. What does
the Glassy-Winged Sharpshooter do?
1.
Ask the students if they can guess what the Sharpshooter does. Talk
about their ideas and/or write them on the board.
2. Explain what the insect does. Make sure to focus on impacts that
directly affect them and that they can easily understand. Tell them
that there are two ways in which GWSS can potentially harm plants.
a. W hen the
GWSS feeds, it sucks huge amounts of liquid out of plants. Explain
that GWSS drinks 13 milliliters of water every day, or about 200-300
times its body weight - the equivalent of a human being drinking
4,300 gallons of water every day! An infested citrus orchard in
Southern California needed an increase in water irrigation of
25% -- that's a lot of water. If you have access to the video,
this is a great time to talk about Sharpshooter rain, the liquid
the insect excretes while it's feeding, that leaves white stains
on plants, sidewalks, cars or anything else outside.
b. Read a list of plants that are affected by diseases the insect
carries (almonds, alfalfa, citrus, oleander, grapes, etc. - a
full list in available on www.bugspot.org).
Ask students to imagine what they'd miss about these plants (no
more fruit salad, almond Hershey bars, etc.).
c. Show the picture again and point out the stylus the insect
uses to bore into plants.
C. How can
we stop the insect from spreading?
1.
Talk about the inspection program -- how inspectors are carefully
inspecting plant material that comes into the county. If you like,
ask a County inspector to come into your classroom and talk about
his or her job!
2. Tell the students that today they are going to get to be just like
the County inspectors.
II. Projects
1.
Give everyone a "sharpshooter kit" in a plastic baggie (we
provide these) to capture suspicious insects, flagging tape to tie
on plants, a single-panel brochure, a magnifying glass, a sticker,
and a 3-D magnet with a picture of the insect.
2. Take the students out to a nearby park or recreation area, or even
the playground or sports field, to use their GWSS kits. Keep them
confined to a small and manageable area. Instruct them to look at
leaves and plants - hopefully they won't find anything, but it's fun
to look. You can have them look for other interesting plant and insect
specimens to share with their classmates. Tell them it's okay to bring
back insects, and it may be possible to bring back some plants that
they find interesting, to share with the group, but not trash such
as cigarette butts, animal droppings, etc. Reiterate that they should
try to treat all insects gently. They should use the flagging tape
in the kits to mark each area from which they remove a specimen, so
that they can return it later.
3. After this "Sharpshooter spotting" expedition, bring
the students back into a circle or the classroom to share their findings.
Have them talk about the impact these bugs may have on plants. If
anyone thinks they've found a Sharpshooter, compare the insect to
the pictures, and have the students explain why the insect is or isn't
a Sharpshooter. If it looks like it could be one, call the hotline,
1-866-BUG-SPOT,
right away. Explain that you're in a classroom situation, and see
if a biologist can come and inspect your specimen immediately.
4. After the presentations, have the students return their specimens
to where they found them. Encourage them to take their Sharpshooter
kits home, inspect their yards and neighborhood parks, and share the
information they have learned with family members and neighbors.
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