Abstract:
【Objective】 To study the effects of temperature change on the predation functional responses of adult of
Adonis variegata (Goeze).
【Method】 At four processing temperatures:17℃,23℃,29℃ and 35℃, the predation ability of adult of
Adonia variegata (Goeze) to
Aphis gossypii Glover at different density conditions was determined in doors.
【Result】 The results showed that predation responses of adult of
Aphis gossypii (Goeze) to
Aphis gossypii Glover belonged to Holling-II at different temperatures. With the increase of temperature, the predatory ability of
Adonia variegata (Goeze) to
Aphis gossypii Glover gradually increased. Under the same temperature conditions, the searching effect of adult of
Adonis variegata (Goeze) to the
Aphis gossypii Glover decreased with the increase of density. At 35℃, the ratio of a/Th of the
Adonia variegata (Goeze) was the largest and the predation ability was twice as high as that at 17℃.
【Conclusion】 The temperature has a significant effect on the predation. Within a certain temperature range, the increase of temperature is favorable to the predation of
Aphis gossypii Glover on the
Adonis variegata (Goeze).