Push–pull agricultural pest management

Push pull intercropping plots

Push–pull agricultural pest management

Push–pull agricultural pest management is a sustainable farming technique that involves the use of repellent plants to "push" pests away from the main crop and attract them to "pull" plants where they can be more easily controlled. This integrated pest management strategy has been successfully implemented in various regions to reduce the reliance on chemical pesticides and promote biodiversity in agricultural landscapes.

History

The concept of push–pull agricultural pest management was developed by scientists at the International Centre of Insect Physiology and Ecology (ICIPE) in Kenya in the late 1990s. The initial research focused on using companion plants to manipulate the behavior of insect pests in maize fields.

Implementation

The implementation of push–pull strategies typically involves planting a combination of repellent plants around the main crop to deter pests and attract them to trap crops. For example, intercropping maize with Desmodium spp. as a repellent and Napier grass as an attractant has been shown to effectively control stem borers and striga weeds.

Benefits

Push–pull agricultural pest management offers several benefits to farmers and the environment. By reducing the need for chemical pesticides, it helps to protect natural ecosystems and promote soil health. Additionally, the use of diverse plant species in agroecosystems can enhance crop resilience and improve overall yields.

Challenges

While push–pull strategies have shown promise in pest management, there are challenges associated with their widespread adoption. Farmers may require training and support to implement these techniques effectively, and there may be limitations in terms of scalability and compatibility with existing farming practices.

Future Directions

Research into push–pull agricultural pest management continues to explore new plant combinations and innovative approaches to enhance its effectiveness. Collaborative efforts between scientists, farmers, and policymakers are essential to promote the adoption of sustainable pest management practices in agriculture.