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Entomology 401 Identifying Friends and Foes
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Insect biodiversity accounts for a large proportion of all biodiversity on the planet, with over 1,000,000 insect species described.
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Pests Any living organisms which are detrimental, troublesome, noxious, destructive, a nuisance to either plants or animals, human or human concerns, livestock, human structures, wild ecosystems, etc. Beneficials -Food production In the United States alone, pollination by bees accounts for over US$9 billion of economic revenue -Ecological services -Products: honey, shellac, dyes, silk E.g. Honey bee, silk worm Predators: Minute pirate bug, Assassin bug, Damsel bug, Green lacewing, Ladybug
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Herbivores: Feeds upon living plant material Predator: An animal that feeds upon other animals (prey) that are either smaller or weaker than itself
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Those with chewing mouthparts: simply chew up and swallow their victims Herbivores: grasshopper, green clover worm, army worm, etc. Predators: ladybugs, ground beetles, preying mantis, etc. Those with piercing sucking mouthparts: stick the mouthpart into prey and suck out the body content Herbivores: redbanded stink bug, aphids, white flies Predators: assassin bug, lacewing larvae, syrphid larvae
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Chewing Pests
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Coleoptera (head)
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Cotton Boll Worm
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Grasshopper
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Boll Damage Adult Boll Weevil Feeding
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Cabbage Looper
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Tiger beetles http://www.realmonstrosities.com/2012/01/ti ger-beetle.html
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Hymenoptera : Formicidae
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Ladybug
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Dragon Fly
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Piercing-Sucking & Rasping Pests
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Hemiptera (piercing and sucking mouthparts)
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Order Hemiptera
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WhitefliesThrips Spider Mites
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http://www.youtube.com/watch?v=49dQtrLxkYo
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Lygus Bugs Stink Bugs
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Damsel bug
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Robber fly They have extremely sharp eyesight and can fly at high speed, catching other insects in mid air. They have stabbing mouthparts (proboscis) which inject a powerful neurotoxic venom and digestive juices into the victim, liquifying its innards, which the fly sucks afterwards.
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Robber Fly
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Assassin bug
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Minute Pirate Bug Bigeyed Bug Nymph
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Predatory stink bugs
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Green Lacewing
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Mantodea : Mantidae Gonatista sp Stagmomantis sp. Tenodera sp.
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Mantodea (thorax) raptorial foreleg
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Hymenoptera : Braconidae
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Hymenopteran Parasitoids Platygastrid wasp
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Parasitoid Eggs
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Hymenoptera (biology/ecology)
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Syrphid Fly
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