Abstract:
【Objective】 To investigate the transfer of
H.variegate between liquorice and neighboring cotton fields and enrich the study of rubidium(Rb)marking method in insect migration and dispersal.
【Methods】 Rubidium marker technique was used to detect the retention period of rubidium in
H.variegate indoors; and rubidium marking method was applied to explore the migration range of
H.variegate from liquorice strip to cotton field in the field.
【Results】 The retention period of rubidium in H.variegate adult was about 15 d. The migration range of H.variegate adult from liquorice to cotton fields differed, with detection rates of Rb in adults of 0-15 m > 30-50 m > 15-30 m > 50-100 m.
【Conclusion】 Rubidium marking method can effectively track the migration of adult and larvae of H.variegate in the field.