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What is integrated pest management (IMP)?
A pest management system
using suitable techniques to maintain the pest population levels below those causing economic harm
What is a pest?
Anything we don’t want in our environment
In field crops, pests are weeds, pathogens, and herbivores.

Why should we use IMP( socio-economic part of definition)?
Money.
reduces impact on non-target species
reduces risk or resurgence,> can allow lesser competitors to resurge
reduce selection for pesticide-resistant pests

Describe economic injury in pest management
Damage = damage to the plant
injury = economic loss
Correlated, but not always 1 to 1
Economic injury calculated with yield, pest damage, and cost of treatment
Economic injury level- amount of damage that causes sufficient economic loss

What is the action threshold
pest population at which treatment must begin to avoid economic injury
Calculated with pest population dynamics and pest life history
After finding the action threshold, you monitor pest populations.
AT is usually given as insects/sample> 12 flies per 25 sweeps

What are the techniques for pest management
Mechanical- trapping, weeding, roguing-removing infected plants
biological
cultural
chemical
chemical and biological control are usually not compatible with other techniques

Describe biological control of pests
Exploits predators/pathogens to control pests
3 types: classical, augmentation, and conservation biological control
Classical, using an invasive pest to attack the pest
Augmentation- release of natural predators(predators, parasites, pathogens) to attack the pest
Conservation biological control- building a refuge for the pest, usually outside of the system

Describe (argi)cultural control
Control of pests via farming practices:
Crop rotations- pests that feed on one crop don’t always feed on others. Pests that move back in will not have anything to feed on. Also increases soil health
cover crops- plant some plants to cover the ground
trap crops-planting plants that are attractive to the pests
plating date- plant early to avoid late season pests. plant late to avoid early-season pests.
plant variety- vertical resistance - pathogen resistance
and horizontal resistance
proper fertilization and irrigation
removing refugia.