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Practical insect interrelationships

This guide explores insect relationships with humans, plants, and microorganisms, covering topics such as injurious and beneficial insects, vectors of human diseases, parasites of domestic animals, and beneficial insect roles like pollination and biological control. It delves into direct and indirect interactions of insects with humans, plants, and animals, offering valuable insights for third-year Zoology students at the Faculty of Science, Tanta University.

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Practical insect interrelationships

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  1. Practical insect interrelationships Third year zoology students Faculty of science Tanta university by

  2. Insect interrelationships with Man among insects Plants Microorganisms

  3. 1-Insects interrelationships with man Injurious insects Beneficial insects Direct Indirect

  4. A-Direct injurious insects 1- Entomophobia O: Himptera ex: Lethocerus niloticum

  5. 2- Annoyance O:Diptera ex: calliphorasp (Blue fly)

  6. 3-Evenomization A- stining insects B-vesicating coeloptera O: Hymenoptera Ex: Vespa orientalis O: Coleoptera Ex: Meloesp

  7. Vespaorientalis

  8. Vesicating coleoptera(blistering beetles)

  9. 4-Myiasis o: Diptera ( flies) Enteric myiasis Ex: Musca domistica Ex:Sarcophagasp Traumatic myiasis Ex: calliphorasp

  10. Musca demostica Sarcophagasp

  11. 5- allergy O: Dictyoptera ex: Periplanta americana

  12. ex: Blattela germinca

  13. 6- Dermatosis o: Anopleura (suking louse)ex: Pediculiushumanus( human louse)

  14. 2- Insects as avector of human diseases A- plague disease Agent:Yersinia pestis(bacteria) Vector: o: siphonoptera( fleas) Ex:Xenopsylla cheopis( rat flea)

  15. 2- Filariasis disease Agent : Wucheria bancrofti( nematodes) Vector: o: Diptera ex: female culexsp

  16. 3- Malaria disease Agent: plasmodium sp (protozoa) Vector: o: diptera ex: female anopheles

  17. Indirect injury of insects to man 1- Destruction of growing plants O: Lepidoptera (Moths) Ex: Spodoptera littoralis(cotton leaf worm)

  18. 2- Destruction of stored products O: coleoptera( beetles and weevils) Ex Sitophilus oryzae ( rice weevil)

  19. 3- insects as parasites of domestic animals A- Ectoparasitism 1-O: Mallophaga (chewing lice) Ex: Columbicola columbae (bird lice)

  20. 2- O: Diptera Ex: Stomoxyssp ( stable fly)

  21. B- Endoparasitism O: Diptera Ex Gastrophilus intestinalis( horse bot fly)

  22. B- beneficial insects 1- insect as scavengers O: Isoptera Ex: ants and termits

  23. 2- pollination of crops O: Hymenoptera Ex: Apis mellifera (honey bee)

  24. 3- Production of commercial products as: A- honey O: Hymenoptera B- bees wax Ex: Apis mellifera (honey bee) C-royal jelly D-bee venom

  25. 4- insects as amodel system for scientificpurposes O: Diptera Ex :Drosophilasp

  26. 5- Destruction of human enemies ( biological control) A- Predators O: Odonata Ex: Hemianaxsp (Dragon fly)

  27. 2- O: Neuroptera ex: chrysopasp ( aphid lion) 3-o: coleoptera ex: coccinellasp ( lady bird beetels)

  28. B- Parasitiods O: Diptera Ex: Tachniasp

  29. Interrelation ship of insects and plants Phytophagus insects Entomophagus plants Entomophilus plants Insect transmit plant pathogen

  30. 1-phytophagus insects: A- leaf- feeders O: orthoptera ex schistocercasp (locust)

  31. 2- fruit feeders O: Diptera ex: ceratitis capitata (mediterranean fruit fly)

  32. 3-seed feeders O: coleoptera ex: Bruchussp

  33. 4- Root chewers O: orthoptera ex: Gryllotalpa gryllotalpa ( mole cricket)

  34. B- sucking insects O: Hemiptera ex: Nezara viridula (plant bug)

  35. 2- o: Hemiptera ex aphissp

  36. 2- Entomophagus plants Plants capture insects by structural modifications Ex: pitcher plants

  37. 2- plants entrap insects by special movement of modified leaves Ex: sundew or Droserasp

  38. 3- Entomophilus plants Ex1 : O:Hymenoptera ex: Apis mellifera( honey bees) Ex2: Fig wasp

  39. C-Insect transmit plant pathogens 1- through ovipostion wounds Tree crickt canker of appel

  40. 2- sooty mold

  41. Olive –Kont disease caused by Dacus oleae

  42. 3-interrelationship among insects

  43. 1- parental care O: Dermaptera ex: Labidura riparia (ear wig)

  44. 2-o: Hemiptera Nezara virdula

  45. 2-Gergarious insects O: coleoptera ex: Rodalia cardinalis

  46. 3-Migaratory insectsO: Orthopteraex: schistocerca gergaria

  47. 4-social insectsbees and wasps

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