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Insect bad guys! You’ll never look at a bug the same.

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Presentation on theme: "Insect bad guys! You’ll never look at a bug the same."— Presentation transcript:

1 Insect bad guys! You’ll never look at a bug the same.

2 Anatomy 3 pairs=6 legs 3 Body parts

3 Life Cycle-Insect Metamorphosis Complete –Egg –Larva (worms/catepillars) –Pupa (relatively dormnant) –Adult (flies, beetles, etc.) Incomplete –Egg –Nymph early-no wings Late-wings developing –Adult

4 *Insects must be killed when they are actively feeding or moving on the plant.

5 Complete Metamorphosis

6 Incomplete Metamorphosis

7 Damage Damage depends on the type of mouthpart Chewing-tear, chew or grind food Sucking: –Piercing: punctures plant and suck sap –Rasping: rasps or break surface and suck sap.

8 Damage Siphoning: have a coiled tube they dip into liquid food such as nectar and draw it in (ex. Butterfly) Sponging: have two sponge-like structures that collect liquid food and move it into the food canal. (ex. House fly)

9 Insect mouthparts

10 Chewing Tear, chew or grind food Controlled by stomach poisons

11 Chewing- Beetles Eat leaves Stems Flowers Fruits Nuts

12 Beetles

13 Chewing- Cutworms Usually attacks stems May eat other plants

14 Cutworms: The larvae or caterpillars of some moths are called cutworms (Agrotis, Amathes, Peridroma, Prodenia spp.) because of the manner in which they cut down young plants as they feed.

15 Chewing- Caterpillars Larva of Moths & Butterflies Fuzzy and hairy Eat young leaves and stems Roll up in leaves, makes leaves curl

16 Caterpillars

17 Chewing- Grasshoppers Eat all parts of plants

18 Grasshopper

19 Chewing- Bagworm Attack during larvae stage Leave brown spots on upper epidermis Eat entire leaves on older plants

20 Bagworm

21 Sucking Puncturing the surface to take out the sap of a plant or other animal. Controlled by systemic control

22 Videos!!!! Incomplete MetamorphosisIncomplete Metamorphosis Complete MetamorphosisComplete Metamorphosis

23 Sucking- Aphids Pierce and suck juices Plant lice Cause stunted growth, yellow spotted leaves Sticky substance and black mold Attracts ants

24 Aphids

25 Sucking- Leaf Bugs Causes plants to look unhealthy Lose normal color and wilt

26 Sucking- Mealy Bugs Pierce and suck from underside of leaves Suck in leaf axils Causes yellow appearance Sticky secretions

27 Mealy bug

28 Sucking- Thrips Chews and then sucks Causes plant tissue to become speckled or whitened Leaf tip withers Leaf curls and dies

29 Thrips

30 Sucking- Whiteflies Feeds on underside of young leaves Little flying white specks when plants are shaken

31 White flies

32 Sucking- Lace Bug Suck on underneath side but damage is noticed on upper part of the leaf as large yellow spots

33 Lace Bug

34 Sucking-Scale Suck juices from stems and other parts of the plant Cause plant as a whole to look unhealthy and stop growing Secretes honeydew that attracts the fungus, sooty mold Mealy bugs are a type of scale

35 Scale

36 Sucking- Mites (Watch Out it isn’t an insect) Attack underside of leaf Causes leaves to turn gray to grayish Severe infestations cause webbing Insects can be red Controlled by a miticide

37 Mites

38 cankerworms


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