cje
Previous Articles Next Articles
PENG Yong-Qiang, MENG Rui-Xia**, ZHANG Dong-Xu, ZHANG Peng-Fei, HAN Yu-Hua
Online:
Published:
Abstract: Phytoseiid mites Neoseiulus barkeri and N. cucumeris are the generalists mainly preying on spider mites and thrips, and widely used in agricultural biocontrol. In this paper, the cannibalism and intraguild predation of N. barkeri and N. cucumeris and the female aggressiveness on larvae (quantified as attack probability) in intraguild predation were studied, aimed to elucidate the interrelationships between these two species of predatory mite to reasonably establish a combination of different natural enemies in biological control. The results showed that the phytoseiid mites consumed more con and heterospecific larvae, lesser protonymphs, and seldom con and heterospecific eggs. The adult females of the two species mites exhibited higher predation rates on heterospecific larvae and protonymphs than on conspecific larvae and protonymphs, suggesting that the two species of mites preferentially engaged in intraguild predation in absence of other food sources. The predation rate of N. barkeri on heterospecific larvae and protonymphs was higher than that of N. cucumeri. Moreover, N. barkeri was more aggressive to heterospecific larvae than N. cucumeri in intraguild predation. Therefore, N. barkeri was most probably a potential intraguild predator of N. cucumeris, whereas N. cucumeri was a potential intraguild prey when the intraguild predation occurred between N. barkeri and N. cucumeris.
PENG Yong-Qiang, MENG Rui-Xia**, ZHANG Dong-Xu, ZHANG Peng-Fei, HAN Yu-Hua. Cannibalism and intraguild predation of phytoseiid mites Neoseiulus barkeri and Neoseiulus cucumeris. [J]. cje.
0 / / Recommend
Add to citation manager EndNote|Ris|BibTeX
URL: http://www.cje.net.cn/EN/abstract/abstract20601.shtml
http://www.cje.net.cn/EN/Y2013/V32/I7/1825