Integrated pest management reduces risk without lowering productivity

Controlling insects is becoming a science on its own, and with mounting pressure from environmentalists and consumers, farmers need to look at softer and more environmentally friendly methods to combat insect pests. Magda du Toit investigates.

- Magda du Toit

The diversity of South Africa’s agriculture sector means that farmers have to deal with a variety of pests and diseases that can affect the health and growth of crops.

If these pests are not controlled, it may have dire consequences for crop or fruit farmers. It is essential that farmers deal with pests and diseases effectively and timeously.

Crop protection is often framed in terms of inputs and costs, with the focus on pesticide selection, and application timing and rates.

Managing pest risks effectively, however, requires a mindshift from focusing on problemor product-based decisions to system-based thinking.

“The answer lies not in a single product or technology, but in integrating multiple strategies into a broader pest management framework. Integrated pest management (IPM) provides this framework by combining prevention, monitoring, and targeted control methods to manage pests while minimising unnecessary interventions,” says Elriza Theron, advocacy and communications manager at CropLife South Africa.

“At its core, IPM is not a single tool but a process. IPM does not begin with a product. It begins with a problem and works towards a management process,” Theron adds.

She explains that IPM is an ecosystem-based approach to crop protection that combines multiple strategies to control pests in an economically viable, environmentally sound, and socially responsible manner. “IPM focuses on prevention, monitoring, and targeted interventions.”

According to Dirk Uys, independent crop protection consultant from Agbridge, IPM can probably also be referred to as intelligent pest management, as it emphasises prevention through crop health rather than corrective approaches.

Dr Gerhard Verdoorn, operations and stewardship manager at CropLife South Africa, says the main goal of IPM is to manage pests, not to eliminate them entirely, as they also have a role to play in the natural system.