From little things - locusts in NSW

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Did you know? This spring (2010) in NSW a plague of locusts is due. Find out what you can do.

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From little things - locusts in NSW

  1. 1. FROM LITTLE THINGS BIG THINGS GROW
  2. 2. Did you know
  3. 3. from little things
  4. 4. big things grow
  5. 5. POP QUIZ
  6. 6. name the natural disaster
  7. 7. flood drought dust storm locusts
  8. 8. from little locusts http://www.daff.gov.au/animal-plant-health/locusts
  9. 9. big disasters grow
  10. 10. Did you know
  11. 11. Locusts change from individuals doing their own thing to ravenous armies working together. What causes the change?
  12. 12. locust numbers …. in other words population
  13. 13. When population density is low, locusts behave as individuals, much like grasshoppers. http://www.daff.gov.au/animal-plant-health/locusts
  14. 14. When population density is high, individuals undergo changes, and they form into gregariously behaving bands of nymphs or swarms of adults. http://www.daff.gov.au/animal-plant-health/locusts
  15. 15. Swarms may contain millions of locusts and cover an area of several square kilometres. http://www.daff.gov.au/animal-plant-health/locusts
  16. 16. Did you know
  17. 17. An Australian plague locust can eat up to half its body weight in plants each day or about 0.2g. http://www.daff.gov.au/animal-plant health/locusts/about/faqs
  18. 18. POP QUIZ
  19. 19. Name the biggest eater A herd of wild elephants or a swarm of locusts?
  20. 20. A big enough swarm of locusts could eat more than a herd of wild elephants.
  21. 21. Watch amazing time-lapse footage of locusts moving across African deserts in the next slide.
  22. 22. Ravenous locust swarms can do severe damage to pasture, to cereal crops such as wheat and oats, and to summer forage crops such as sorghum and lucerne. In closely settled districts, vegetables and even orchard trees can be badly damaged. http://www.dpi.nsw.gov.au/agriculture/pests-weeds/insects/general/locusts
  23. 23. Changes in body shape and colour, and in fertility, survival and migratory behaviour also occur. These changes are so dramatic in many species that the swarming and non-swarming forms were once considered to be different species. http://www.daff.gov.au/animal-plant-health/locusts
  24. 24. View a simple experiment on how locusts perceive the signal to swarm in the next slide.
  25. 25. POP QUIZ
  26. 26. When locusts strike in Australia who’s affected?
  27. 27. farmers consumers exporters … in other words
  28. 28. everyone
  29. 29. Did you know
  30. 30. this spring in a field near you
  31. 31. Locust eggs a locust plague is due
  32. 32. POP QUIZ
  33. 33. What can be done to save our food?
  34. 34. * keep an eye on the news * check websites for sightings http://www.dpi.nsw.gov.au/agriculture/pests-weeds/insects/general/locusts * find out about control methods
  35. 35. know what to look for Can you spot the locust eggs?
  36. 36. download a guide  http://www.dpi.nsw.gov.au/agriculture/pests- weeds/insects/general/locusts  http://www.daff.gov.au/animal-plant- health/locusts/about/id-guide
  37. 37. Is this a locust?
  38. 38. No way…I’m Australia’s biggest grasshopper. I have red spines with black tips on my legs. Plague locusts are much smaller. http://www.daff.gov.au/animal-plant-health/locusts/about/id-guide/description_of_adults/9._giant_or_hedge_grasshopper_valanga_irregulari
  39. 39. If you see something, say something. And help .. .
  40. 40. and if you can’t beat ‘em … some people eat ‘em
  41. 41. Locusts are high in protein and eaten in several countries. They are stir fried, roasted, grilled, boiled or dried and kept for later.
  42. 42. For a bit of extra crunch a how does a locust taco sound? Take a look at this and other recipes from around the world on the United Nations locust web pages: http://www.fao.org/ag/locusts/en/info/info/faq/index.html But before you take a bite remember…..
  43. 43. In Australia we spray to kill locusts so we can’t eat them.
  44. 44. a presentation by: http://www.landlearnnsw.org.au

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