What are the two main strategies for managing white grub infestations?

The two main strategies for managing white grub infestations are preventative and curative approaches. Preventative management involves taking steps before an infestation occurs, such as applying nematodes or insecticides during peak egg-laying periods or implementing cultural practices that reduce the likelihood of grubs establishing themselves. These methods aim to create conditions that are unfavorable for white grub development.

Curative management comes into play once an infestation is identified. This strategy involves using treatments such as targeted insecticides to eliminate existing grubs and mitigate damage to turf or crops. Understanding the lifecycle of white grubs is crucial for timing these interventions effectively.

While the other options include valuable strategies, they are not as widely recognized as the primary approaches to managing white grub populations. For example, biological and chemical methods can be components of both preventative and curative strategies but are not the overarching categories of management. Cultural and physical strategies can also aid in control but may not directly address the treatment of an established infestation. Natural and alternative methods may provide additional options, but like the previous strategies, they typically fit within the context of preventative or curative management rather than serving as standalone main strategies.