Sterile insect technique

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Case study• Tsetsefly• Glossina sp.43 species• Vertebrate bloodfeeder• Protozoa: genus Trypanosoma– Human sleeping sickness– Nagana pest• eradicated in Zanzibar (East Africa)www.indiana.edu26.01.2011 sterile insect technique ‐ Nik Becker 201111Problems• Resistance multiple copulation• Fitness compatibility (irradiation)• Legal restrictions• Sex separatism (easy medfly/screwworm)• Mass rearing• Costs• New immigration26.01.2011 sterile insect technique ‐ Nik Becker 2011 12
Conclusion• Most target specific and non disruptivemethod• Not releasing genetic material– Not self‐replicating• Only If : separate males, fitness good, easyand cheap to rare• Area wide addressing total population26.01.2011 sterile insect technique ‐ Nik Becker 201113Other aspects• Ionizing radiation as quarantine treatment• Acceptable quarantine treatment forgrapefruits and mangoes• 250‐300 Gy requiredprevent larvae pupation26.01.2011 sterile insect technique ‐ Nik Becker 201114
Page 1 and 2: Sterile insecttechniqueNik Becker 1
Page 3 and 4: Principle• Irradiation• Gammara
Page 5: Case study• California 1994‐199
Page 9: References• HAJEK A. (2004): Natu

Sterile insect technique

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