Lab Practical 1

Question 1

Damage symptom category including defoliation, shot holes, margins notched, skeletonization, and etching

Answer 1

Chewing

Question 2

Larges chunks of leaves are taken out generally by caterpillars

Answer 2

Defoliation

Question 3

When small caterpillars make random holes throughout the leaves

Answer 3

Shot holes

Question 4

When bites are taken out of the leaf margins, but no the middle

Answer 4

Margins notched

Question 5

Feeding occurs all the way through the leaves and just the veins are left behind

Answer 5

Skeletonization

Question 6

Superficial feeding of the leaves (eats one layer)

Answer 6

Etching

Question 7

Damage symptom category including stippling, streaking, mining, and yellowing

Answer 7

Discolored

Question 8

Little dots on leaves; sucks out plant cells in dispersed pattern

Answer 8

Stippling

Question 9

Sucks out plant cells in lines and dulls color

Answer 9

Streaking

Question 10

Goes into the leaves and feeds on the cells (Serpentine and Blotched)

Answer 10

Mining

Question 11

Chlorosis of the leaves

Answer 11

Yellowing

Question 12

Damage symptom category including leaf cupping, leaf curling, and galling

Answer 12

Distorted

Question 13

All sides of the leaf curl towards the center

Answer 13

Leaf cupping

Question 14

2 sides of the leaf curling towards the center

Answer 14

Leaf curling

Question 15

Injecting the plant with hormones to make the plant make a protective case around the insect’s egg/larva

Answer 15

Gall

Question 16

Damage symptom category including shoot and branch dieback, girdling, galleries, bark cracking, and borer exit holes

Answer 16

Dieback

Question 17

Below ground feeding causes this

Answer 17

Girdling

Question 18

Pulling back the bark and seeing tunnels insects have made - emerald ash borer

Answer 18

Galleries

Question 19

Frass and sawdust are found; there can be resin to push out the eggs in response

Answer 19

Borer exit holes

Question 20

Damage symptom category including honeydew, fecal spots, silk, fluffy wax, spittle, etc.

Answer 20

Product

Question 21

Tent caterpillars leave this behind, making nest-like structure

Answer 21

Silk

Question 22

Left behind by spittle bugs, it looks like spit on the plants

Answer 22

Spittle

Question 23

Holes in the trunk of the tree that have material around the edges

Answer 23

Pitch tubes

Question 24

When sap flows out of tubes to push out the eggs

Answer 24

Sap flow