Biological Control of Aphids in China: Successes and Prospects

Aphids are small, soft-bodied insects, and many are notorious pests of field crops, vegetables, fruit trees, ornamental plants, and trees. In China, there is an increasing emphasis on utilizing biological control agents, including aphidopathogenics, and selective pesticides for the management of aphids. In particular, preventive integrated pest management strategies with early interventions reduce the financial and environmental costs associated with treatments of outbreaks. Decades of progress have proved that biological control is a cost-effective and environmentally safe control option. Here, we review the history and progress of aphid control, with an emphasis on major natural enemies, mass-rearing, and conservation, and provide two successful cases, constraints, and future perspectives on aphid biological control in China.