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You’ll never look at a bug the same.
Insect bad guys! You’ll never look at a bug the same.
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Anatomy 3 Body parts 3 pairs=6 legs
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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
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*Insects must be killed when they are actively feeding or moving on the plant.
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Complete Metamorphosis Video
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Monarch Butterfly Metamorphosis
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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. 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)
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Chewing- Beetles Eat leaves Stems Flowers Fruits Nuts
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Beetles
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Chewing- Cutworms Usually attacks stems May eat other plants
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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.
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Chewing- Caterpillars
Larva Moths Butterflies Fuzzy and hair Eat young leaves and stems Roll up in leaves, makes leaves curl
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Caterpillars
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Chewing- Grasshoppers
Eat all parts of plants
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Grasshopper
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Sucking Puncturing the surface to take out the sap of a plant or other animal.
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Sucking- Aphids Pierce and suck juices Plant lice
Cause stunted growth, yellow spotted leaves Sticky substance and black mold Attracts ants
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Aphids
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Sucking- Leaf Bugs Causes plants to look unhealthy
Lose normal color and wilt
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Sucking- Mealy Bugs Pierce and suck from underside of leaves
Suck in leaf axils Causes yellow appearance Sticky secretions
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Mealy bug
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Sucking- Thrips Chews and then sucks
Causes plant tissue to become speckled or whitened Leaf tip withers Leaf curls and dies
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Thrips
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Sucking- Whiteflies Feeds on underside of young leaves
Little flying white specks when plants are shaken
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White flies
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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
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Mites
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cankerworms
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Insect mouthparts
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Incomplete Metamorphosis
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Complete Metamorphosis
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