1. Essential Standard 8.00- Compare distinguishing chrematistics of pest.
Pest Management
Essential Standard Compare distinguishing chrematistics of pest.

2. Objective 8.01
Discuss the anatomy and life cycle of pest.

3. What is an insect?
Small animals that have three body regions and three pairs of legs equaling six legs
Body regions
head
thorax
abdomen

4. Types of Insects
The five types of mouthparts are important in identifying and controlling insects.
Chewing
Piercing-sucking
Rasping-sucking
Siphoning
Sponging

5. Chewing Insects Insects tear, chew or grind food Examples
grasshopper
Beetle
Cutworms
Caterpillars
Damage by chewing insects includes tearing, chewing, or grinding all parts of the plant

6. Piercing-Sucking Insects
Punctures plant and sucks the sap usually from underside of the leaves or the stem
Examples
Aphids
Mealy bugs
Mites
Scale
whiteflies
Damage causes yellow spotted leaves which result in stunted growth

7. Rasping-Sucking insects
Rasps or breaks surface and sucks sap
Example
thrips
Damaged plant tissue becomes speckled and white

8. Siphoning insects
Have a coiled tube they dip into liquid food such as nectar and draw it in
Example
butterflies
Siphoning insects do little to no damage to the plant

9. Sponging Insects
Have two sponge-like structures that collect liquid food and move it into the food canal
Example
houseflies
Sponging insects can carry germs or diseases that can damage plants

10. Life Cycles Complete metamorphosis has four stages egg
larva-worms or caterpillars
Pupa- resting stage
adult-flies, beetles, etc.

11. Life Cycles Incomplete metamorphosis has three stages
egg
Nymph- baby insect
Adult
Insects must be killed when they are feeding or actively moving on the plant

12. Life Cycles

13. Chewing Insects Parts of leaves are eaten away beetles cutworms
caterpillars
grasshoppers

14. Chewing Insects Beetles Cutworms
eat leaves, stems, flowers, fruit and nuts
Cutworms
usually attack stems, but may eat other plant parts

15. Chewing Insects Caterpillars Grasshoppers
larva of moths and butterflies
fuzzy or hairy
eat young leaves and stems
roll up in leaves making leaves curl
Grasshoppers
eat all parts of plants

16. Sucking Insects
Aphids
Leaf bugs
Mealy bugs
Scale
Thrips
Whiteflies

17. Aphids Pierce and suck juices known as plant lice
cause stunted growth and yellow spotted leaves
causes sticky substances and black mold
will attract ants

18. Aphids

19. Leaf Bugs Cause plants to look unhealthy
plants will lose their normal color and wilt

20. Leaf Bugs

21. Mealy Bugs
Pierce and suck from underside of leaves and in leaf axils causing yellow appearance and sticky secretions

22. Mealy bugs

23. Scale
Appear as black or brown raised lumps attached to stems and underside of leaves causing yellow leaves and stunted growth

24. Scale

25. Thrips
Chew and then suck causing plant tissue to become speckled or whitened, leaf tip to wither, curl up, or die

26. Thrips

27. Whiteflies Feed on underside of young leaves causing yellowing
will look like flying little white specks when plants are shaken

28. Whiteflies

29. Mites Attack underside of leaves causing gray to grayish-green spots
severe infestations cause webbing

30. Mites