????????? (tactics)

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• ????1000??(?????100??)
• ??????1000???
• ????35??(?????6???)
• ????20??
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Numbers of species recorded up to 1970
Animal groups
No. of species
Mammalia Aves Reptilia Amphibia Pisces Tunicata Ec
hinodermata Mollusca Coelenterata Arthropoda
(insects only) Arthropoda (excluding
insects) Vermes Protozoa
4,500 8,600 6,300 2,500 21,000 1,600 6,000 45,000
9,600 790,000 96,000 41,000 32,000
(74.24)
(Simon, 1983)
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????????

• (?)?????????
• (?)??????? (strategies)

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• 40 ?? DDT?BHC???????????????,?????????????????????
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• ?? 60 ??,?????????,???????????,??????????????,????
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• ?????????????????,??????????????????????,???
  ???? (integrated control)?????,?????????????????
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• ???? (pest management) ????????????
  (management)????? (control),????,???????? ??
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• ??????????,??????????,???????????????????,????????
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  level,?? EIL) ??,????????????,??????????????

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  ???,???? ??????? (integrated pest management,??
  IPM)?

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• ????????????????????,???????????????,????????????,
  ???????? (EIL)

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• ?????????????????????????????????????,?????????(ET
  )

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(?)??????? (strategies)

1. ?????????? 2. ???????? 3. ????????? 4. ????
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????????? (tactics)

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IPM
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• ???????X-ray?Co-60???????????,????????????????,???
  ?????????,????????,??????????????????,???????????,
  ????????????,????????

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  ??????????,???????????

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?2. ??????????
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THANKS
for your attention