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Entomology 401 Identifying Friends and Foes. Insect biodiversity accounts for a large proportion of all biodiversity on the planet, with over 1,000,000.

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Presentation on theme: "Entomology 401 Identifying Friends and Foes. Insect biodiversity accounts for a large proportion of all biodiversity on the planet, with over 1,000,000."— Presentation transcript:

1 Entomology 401 Identifying Friends and Foes

2 Insect biodiversity accounts for a large proportion of all biodiversity on the planet, with over 1,000,000 insect species described.

3 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

4 Herbivores: Feeds upon living plant material Predator: An animal that feeds upon other animals (prey) that are either smaller or weaker than itself

5 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

6 Chewing Pests

7 Coleoptera (head)

8 Cotton Boll Worm

9 Grasshopper

10 Boll Damage Adult Boll Weevil Feeding

11 Cabbage Looper

12 Tiger beetles ger-beetle.html

13 Hymenoptera : Formicidae

14 Ladybug

15 Dragon Fly

16 Piercing-Sucking & Rasping Pests

17 Hemiptera (piercing and sucking mouthparts)

18 Order Hemiptera

19 WhitefliesThrips Spider Mites

20

21 Lygus Bugs Stink Bugs

22 Damsel bug

23 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.

24 Robber Fly

25 Assassin bug

26 Minute Pirate Bug Bigeyed Bug Nymph

27 Predatory stink bugs

28 Green Lacewing

29

30 Mantodea : Mantidae Gonatista sp Stagmomantis sp. Tenodera sp.

31 Mantodea (thorax) raptorial foreleg

32 Hymenoptera : Braconidae

33 Hymenopteran Parasitoids Platygastrid wasp

34 Parasitoid Eggs

35 Hymenoptera (biology/ecology)

36

37 Syrphid Fly


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