Abstract:

Predacious coccinellid are important natural enemies that control insect pests in farmlands. It can feed on the eggs, young larvae and pupae of aphids, psyllids, whiteflies, scale insects and some Lepidoptera and Coleoptera insects. Commonly seen species in fields include Harmonia axyridis, Propylea japonica, Hippodamia Variegata, Coccinella Septempunctata, etc. they have a strong continuous control effect on farmland pests. There are large crop cultivation areas and a variety of ecological land types in Heilongjiang, providing great potentials of biological control with natural enemies. In the present study, we requirements according to ' Data Center Monitoring Mission Specification for Natural Enemies and Other Insect Resources', and monitored seasonal coccinellid species and abundances in corn, soybean, and wheat fields in Harbin, and collected habitat situation information. We established the dynamic data set of ladybug population in Harbin farm. These data support further research on biodiversity and pest management in local agro-ecosystem.

Key words: coccinellidae, population dynamics, maize, soybean, wheat