TY  - JOUR
AU  - CHEN, Wen-Shu
AU  - LIANG, Yi-Ming
AU  - GAO, Peng
AU  - WEN, Xiao-Lei
AU  - QI, Hui-Xia
AU  - YAO, Heng
AU  - GAO, Su-Hong
PY  - 2025
TI  - Predation ability of Harmonia axyridis on Tuberculatus castanocallis
JO  - Journal of Environmental Entomology
SN  - 1674-0858
SP  - 593
EP  - 600
VL  - 47
IS  - 2
AB  - In order to determine the pest control potential of Harmonia axyridis against Tuberculatus castanocallis, the predation function, seeking effect and disturbance response of H. axyridis against T. castanocallis were studied in laboratory. The results showed that the H. axyridis's predation function responses to T. castanocallis were all consistent with the Holling-Ⅱ model. The maximum daily theoretical predation of H. axyridis on T. castanocallis in descending order was as follows: 4th instar (447.97 individuals), female adult (387.53 individuals), male adult (379.73 individuals), 3rd instar (243.45 individuals), 2nd instar (122.75 individuals), and 1st instar (62.62 individuals). The seeking effect of H. axyridis decreased with the increase of the density of T. castanocallis. With the increase of its own density, the single-head predation amount and predation ratio of H. axyridis gradually decreased, and the competition intensity of allocation gradually increased, which was consistent with the Hassell interference model. The densities of H. axyridis of different insect states had obvious interference effects on the predation of T. castanocallis, and the coefficient of interference in descending order as follows: the 4th instar larvae (0.7257), female adult (0.6907), male adult (0.6703), 3rd instar (0.6387), 2nd instar (0.3425), 1st instar (0.3392). The results showed that H. axyridis had a good potential to control T. castanocallis, and provided a theoretical basis for the efficient use of H. axyridis to control T. castanocallis.
UR  - https://doi.org/10.3969/j.issn.1674-0858.2025.02.26
DO  - 10.3969/j.issn.1674-0858.2025.02.26