Integrated Pest Management (IPM)

Integrated Pest Management (IPM){br}## Overview of Pests{br}Various pests need to be considered in crop production systems and other human-occupied settings. The severity depends on the specific environment and conditions.{br}* Arthropods: This category includes insects, mites, and spiders.{br}* Diseases: These are considered pathogens, such as rust and late leaf spot, and viruses. Plant pathology studies how these affect plants.{br} * Example (Peanut Diseases): Rust causes smaller lesions on leaves, while late leaf spot causes larger brownish-black lesions. Both are pathogens that develop under favorable conditions, leading to lesions and, if severe enough, leaf drop and yield loss.{br} * Plant Disease Triangle: For disease to develop, three conditions must converge over time:{br} * A favorable environment (e.g., specific humidity, temperature for development).{br} * A susceptible host (e.g., a crop variety that lacks resistance).{br} * The pathogen is present in the environment.{br} * These three elements, combined with sufficient time, lead to disease development.{br}* Nematodes: These are microscopic worms, often found in soil, that primarily affect plant root systems and the production of harvestable underground crops.{br} * Example (Peanut Rotation Study): A long-term study showed continuous peanuts (rotation 10) severely affected, primarily by high nematode populations, compared to a good rotation with corn or cotton before peanuts (plot 7).{br}* Weeds: Undesirable plants that are