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1

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

Complete Defoliator

2

when do Gypsy Moths ley eggs?

When do they hatch?

Late Summer

Spring (mid May)

3

describe the colored spots on gypsy moth larvae...

5 sets of blue spots and 6 sets of red spots

4

what are some natural controls for Gypsy moth?

  • 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

5

Do female gypsy moths fly?

No

6

Managing and Controling Gypsy moths:

What can you use against young larvae? 

Bacillus thuringiensis or Horticultural oils 

7

What is the threshold for gypsy moths?

10 per tree...per 250 acres

8

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

  • Spinosad, azadiractin, tebufenozide, chlorantraniliprole 

9

By lookng at the Prolegs...how can you tell that it's a caterpillar?

Caterpillars have 5 or less pairs of prolegs

10

Where do orange striped Oakworm pupate?

On the ground

11

What are the hooks on the caterpillars prolegs called? 

Crotchets

12

How many generations per year for gypsy moths?

for Orange Striped Oakworm?

1

2

 

13

Eastern Tent Caterpillar egg masses look like _____.

Black Knots on twigs/branches

14

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

  • back to their "tent" that they built in the crotch of the tree branches 

15

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

Prune them out and remove them from the site

16

What uses silk to built tents over entire branches?

Fall Webworms

17

When do bagworm eggs hatch?

June

18

describe the characteristics of the bag that barworms make:

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

19

Where are bagworm bags found on the host?

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

20

Sawfly

Order:_____

Suborder:______

Order: Hymenoptera (wasp)

Suborder: Symphyta (sawfly) 

21

Why is a sawfly called a sawfly?

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

22

How can you tell butterfly larvae from sawfly larvae?

  • 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) 

23

24

European Pine Sawfly prefer what kind of needles?

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