4 Flashcards

(56 cards)

1
Q

Is the Gypsy Moth a complete defoliator or a nest maker?

A

Complete Defoliator

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2
Q

when do Gypsy Moths ley eggs?

When do they hatch?

A

Late Summer

Spring (mid May)

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3
Q

describe the colored spots on gypsy moth larvae…

A

5 sets of blue spots and 6 sets of red spots

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4
Q

what are some natural controls for Gypsy moth?

A
  • There is a virus that can kill the larvae
  • Fungi can kill larvae
  • Parasitic Wasp lays eggs on pupae and the pupae never turn into adults
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5
Q

Do female gypsy moths fly?

A

No

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6
Q

Managing and Controling Gypsy moths:

What can you use against young larvae?

A

Bacillus thuringiensis or Horticultural oils

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7
Q

What is the threshold for gypsy moths?

A

10 per tree…per 250 acres

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8
Q

what are some options to control gypsy moths if the larvae are mature?

A
  • Spinosad, azadiractin, tebufenozide, chlorantraniliprole
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9
Q

By lookng at the Prolegs…how can you tell that it’s a caterpillar?

A

Caterpillars have 5 or less pairs of prolegs

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10
Q

Where do orange striped Oakworm pupate?

A

On the ground

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11
Q

What are the hooks on the caterpillars prolegs called?

A

Crotchets

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12
Q

How many generations per year for gypsy moths?

for Orange Striped Oakworm?

A

1

2

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13
Q

Eastern Tent Caterpillar egg masses look like _____.

A

Black Knots on twigs/branches

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14
Q

Eastern Tent Caterpillars Feed during the day…where do they go at night?

A
  • back to their “tent” that they built in the crotch of the tree branches
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15
Q

If you find the easter tent caterpillar egg cases early, what do you do?

A

Prune them out and remove them from the site

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16
Q

What uses silk to built tents over entire branches?

A

Fall Webworms

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17
Q

When do bagworm eggs hatch?

A

June

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18
Q

describe the characteristics of the bag that barworms make:

A
  • They make the bag from silk and parts of the host plant
  • The bag is very mobile
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19
Q

Where are bagworm bags found on the host?

A

on the tips of branches and on the sunny side of the plant

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20
Q

Sawfly

Order:_____

Suborder:______

A

Order: Hymenoptera (wasp)

Suborder: Symphyta (sawfly)

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21
Q

Why is a sawfly called a sawfly?

A

Female sawflys have ‘saw-like” ovipositors that cut open host plant tissue to lay eggs inside of it

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22
Q

How can you tell butterfly larvae from sawfly larvae?

A
  • Butterfly larvae have fake eye spotsand it’s hard to tell the front and back apart.
  • Sawfly larvae’s head is obvious and eyes are visible
  • 6+ pairs of prolegs (enough to spell S.A.W.F.L.Y)
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24
Q

European Pine Sawfly prefer what kind of needles?

A

Old needles, they leave the new growth alone

25
Redheaded Pine Sawfly: Unfertilized eggs are \_\_\_\_\_ Fertilizeed eggs are \_\_\_\_\_
Unfertilized = all male Fertilized = Mixed
26
What's the difference in eating habbits of the European Pine Sawfly and the Redheaded Pine Sawfly?
Redheaded Pine Sawfly will eat all needles while the European will only eat old needles
27
August sleeps with dudes....True or False?
True. duh
28
Where do Birch Leafminer's eat?
Between the leaf surfaces
29
30
What and when do you spray for Birch Leafminer?
* Lots of options....spray at budbreak * Spinosad, abamectin, azadiractin, * Pyrethroids, carbamates
31
What shape is the dusky birch sawfly when it's resting?
"S" shaped
32
33
What does the Elm Leaf Beetle do to the leaves of it's host?
Skeletonizes the leaves
34
Where do Elm Leaf Beetles crawl to pupate? How many generations per year?
They crawl to the ground 2 generations per year
35
Where dos the Viburnum leaf beetle lay it's eggs?
On the bark of the viburnum
36
Japanese Beetle larvae live \_\_\_\_\_.
In the soil
37
How do Spittlebugs eat?
They form a white "spittle" or foam around them that protects them as they eat the plant
38
How do leafhoppers harm the plant?
* by destroying chlorophyll, * removing plant fluids, * introducing toxins in saliva, * vectoring bacterial and phytoplasma diseases.
39
What is aphid waste called?
Honeydew
40
What are the voracious predators of Aphids?
Lady Bug larvae
41
Aphids don't cause stippling...they cause ______ and Produce \_\_\_\_\_.
Leaf Distortion and Honeydew
42
What is the black stuff on the honeydew from aphids?
Sooty Mold Fungus
43
define Diaspididae
hard (armored) scales
44
hard (armored) scales are called :
Diaspididae
45
Coccidae are \_\_\_\_\_\_.
soft scales
46
soft scales are called \_\_\_\_\_\_.
Coccidae
47
What is the dference between hard and soft scales?
* Diaspididae – hard (armored) scales * Secrete wax - not part of body * Live and feed under wax ‘armor’ * Coccidae – soft scales * Secrete wax - part of body * Excrete honeydew
48
Male and females both fly. true or false?
False. Females dont fly
49
Scale Shit....So, What do you do?! What scales uses their wax (shit) as armour to live and feed under?
Diaspididae - Hard Scales
50
Scale Shit....So, What do you do?! What scale excretes wax as part of their body...and leaves honeydew (scale shit) on the host plant?
Coccidae - Soft Scales
51
Where in the plant do Hard Scales feed?
They feed on plant cell contents...not vascular tissue
52
53
scale feeding leaves spots...sometimes called \_\_\_\_\_.
Stippling
54
Hard Scale waste prodcut is called \_\_\_\_.
Wax
55
Scale nymphs are called \_\_\_\_\_\_.
Crawlers
56
True or False Tom Brady sucks Payton Mannings Chode......
True. Obviously.