Entomology
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Entomology Original PowerPoint by Mark Morgan Modified by Georgia Agriculture Education Curriculum Office November 2005 What is Entomology? the branch of zoology that deals with the study of insects

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Entomology l.jpg

Entomology

Original PowerPoint by

Mark Morgan

Modified by Georgia Agriculture Education Curriculum Office

November 2005


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What is Entomology?

  • the branch of zoology that deals with the study of insects


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On average there are more than 750,000 species of insects that have been identified worldwide.



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Problems are harmful to humans.

  • Deadly epidemics of the past have been caused by diseased organisms carried by insects.

  • Example: Bubonic Plague epidemic that wiped out the population of Europe in the 14 century was carried by fleas that infested rodents


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Classification of insects: are harmful to humans.

  • Kingdom

  • Phyla

  • Class

  • Order

  • Family

  • Genus

  • Species


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  • The highest level is the Kingdom are harmful to humans.

  • The most specific is the species level.

  • Organisms are usually classified by the genus and species.

  • This is called a binomial nomenclature.


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Six orders of insects: are harmful to humans.

  • Orthoptera- which includes the grasshopper and locust

  • Hemiptera- which includes the true bugs such as leaf hoppers and plant bugs

  • Lepidoptera – moths and butterflies

  • Homoptera- aphids


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Cont’d… are harmful to humans.

  • Thysanoptera- thrips

  • Coleoptera- which is the largest group of the insect orders this has beetles


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How are insects grouped? are harmful to humans.

  • by the way they feed on plants

  • by their mouth parts


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Six Mouth Parts are harmful to humans.

  • Sponging

  • Rasping- sucking

  • Siphoning

  • Chewing-lapping

  • Chewing

  • Piercing- sucking


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Parts of an Insect hard outer coating, exoskeleton, which protects their inner organs and supports their body.

  • Head

  • Thorax

  • Abdomen


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Head hard outer coating, exoskeleton, which protects their inner organs and supports their body.

  • Has a pair of compound eye and two sensory appendages called antennae


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Thorax hard outer coating, exoskeleton, which protects their inner organs and supports their body.

  • is divided into three segments from which are attached three pairs of legs


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Abdomen hard outer coating, exoskeleton, which protects their inner organs and supports their body.

  • is attached to the thorax

  • which will contain more segments


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Life Cycles hard outer coating, exoskeleton, which protects their inner organs and supports their body.

  • Incomplete Metamorphosis

  • Complete Metamorphosis


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Incomplete Metamorphosis hard outer coating, exoskeleton, which protects their inner organs and supports their body.

  • Eggs

  • to Early nymph (no wings)

  • to late nymph (wings developing)

  • Goes to Adult


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Complete Metamorphosis hard outer coating, exoskeleton, which protects their inner organs and supports their body.

  • Eggs to

  • Larva to

  • Pupa to

  • Adult


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What Is a Larva? hard outer coating, exoskeleton, which protects their inner organs and supports their body.

  • It is when the young insect has soft tubular body and looks very much like a worm


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What Is the Pupa Stage? hard outer coating, exoskeleton, which protects their inner organs and supports their body.

  • The larva matures and will pass through the pupa stages which is usually a relatively dormant stage.


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What is DDT? hard outer coating, exoskeleton, which protects their inner organs and supports their body.

  • This is a chemical that was discovered by German name Othmar Zeidler in 1874.

  • It is a chemical used to reduce the number of insects in a given area.

  • Example: mosquitoes in the tropics


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Integrated Pest Management hard outer coating, exoskeleton, which protects their inner organs and supports their body.

  • Cultural methods

  • Insect diseases and predators

  • Pheromones

  • Release of sterile males

  • Insect resistant plants varieties


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