Skip to content Skip to navigation
UMass Collegiate M The University of Massachusetts Amherst
  • Visit
  • Apply
  • Give
  • Search UMass.edu
Center for Agriculture, Food, and the Environment
UMass Extension Fruit Program
  • Fruit Home
  • About
    • About the Fruit Program
    • Faculty & Staff
    • Program Sponsors
  • Publications
    • Annual March Message
    • Orchard BMP Manual
    • Small Fruit BMP Manual
    • New England Tree Fruit Management Guide
    • New England Small Fruit Management Guide
    • Fact Sheets
    • Fruit Notes
    • Healthy Fruit
    • Berry Notes
    • IPM Berry Blast
    • New England Grape Notes
    • NC-140 Massachusetts State Reports
    • Subscribe to Fruit Publications
  • Resources
    • Nutrient Management
    • Tall Spindle Apple
    • Apple Maturity Reports
    • Bud Stages Photos
    • Fruit Varieties
    • Invasive Pests
    • Useful Links
    • Clements Corner
  • Services
  • Research & Projects
    • Projects
    • Annual Reports
    • Tunnel Sprayer Blog
    • Research Videos
  • News & Events
    • News & Updates
    • Upcoming Events
    • Mass Aggie Seminars 2025
    • Northeast Extension Fruit Consortium
  • Make a Gift

Integrated Pest Management (IPM)

Integrated Pest Management (IPM) is the coordinated use of pest and environmental information to design and implement pest control methods that are economically, environmentally and socially sound. IPM promotes prevention over remediation and advocates integration of multiple control strategies to achieve long-term pest management solutions.

IPM consists of gathering information, interpreting data, creating a flexible management plan, making timely decisions and taking the proper action. Information gathering and decision-making techniques include: accurate pest identification, learning about the weak link in a pest's life cycle or biology, scouting and monitoring crops in fields, using action thresholds to minimize spraying, and keeping records of findings to assess the effectiveness of management decisions.

Monitoring Pests and Making Control Decisions

  • Accurate pest identification is a crucial first step on the road to a solution. Misidentification of pests is a common cause of pest control failure and crop damage. See the "Diagnostics" section for more information on identification.
  • The biology and life-cycle of a pest often reveals the key to successful control measures. Detailed, pest-specific information is available in fact sheets on IPM web sites or publications listed in the Appendices. See also specific crop listings in this guide for basic descriptions.
  • Scouting involves using systematic methods of inspecting the crops on a regular basis to quantify pest populations or crop injury/damage. Scouting techniques vary considerably depending upon the type of pests (weed, insect, disease or other) involved. Details are available in pest and crop-specific IPM fact sheets and manuals, and in crop listings in this guide.
  • Monitoring weather conditions or Trapping pests can be used to assess or predict current or future pest problems and help to prevent crop damage. Equipment and procedures vary by pest and more resources can be found in the Appendices.
  • Action thresholds are usually expressed as a fixed number for individual pests (i.e., 7 moths/week or 2 weeds/foot of row) or crop injury (i.e., 20% defoliation), or as a rating for weather conditions (i.e., 15 Disease Severity Units). Thresholds tell you when to control the pest(s) to prevent or minimize economic damage to crops. Some thresholds are given for pests in the individual crop sections in this manual and others vary by state or region. Contact your state's Extension IPM personnel for local action thresholds.
  • Record-keeping involves recording data on weather, pest populations, crop conditions and control procedures all season. Good records help determine which pest control strategies are working and where improvements should be made in the future.

Along with information gathering and decision-making techniques, a variety of preventative and curative control methods are used to construct a complete IPM management plan for each pest, crop and farm. Cultural, mechanical, physical, genetic, and biological controls help prevent severe pest problems, while pesticides are used when additional control measures are required.

  • Cultural controls are modifications of the crop production systems that suppress pest populations and occurrence. A few examples include: the use of better site selection, crop rotation, modifying planting times or plant spacing, improved water and nutrient management for better crop health or to limit weed competition, breaking up plow pans, cleaning soil from machinery between fields, and the use of cover and smother crops.
  • Mechanical and physical controls consist of using supplies, equipment, or some factor, such as temperature, humidity or light, to disrupt pest life cycles and/or suppress populations. Mechanical and physical controls function by cutting, crushing, burying or excluding pests with implements and barriers, or by heating, cooling, drying, wetting, or regulating light in some way. Some examples include: plowing, cultivation, flaming, plastic or organic mulches, row covers, greenhouse ventilation, washing, cold storage and roguing infected plants.
  • Genetic controls are generally achieved through traditional breeding programs that select crop varieties with resistance or tolerance to insects, nematodes or diseases or with plant growth characteristics which favor plant success (such as early emergence, heat or cold tolerance, canopy or leaf traits).
  • Biological control is the use of naturally occurring or introduced beneficial organisms to control or suppress pest populations. Biological control agents come in all shapes and forms including: beneficial insects, mites, spiders, nematodes, fungi, bacteria, viruses, protozoa and plants. In the broadest interpretation, they would include things like microbial pesticides and the use of trap crops. Common examples range from parasitic wasps, entomophagus and competitive fungi and bacteria, to predacious bugs, beetles and spiders. Natural enemies of pests exist everywhere in nature and should be preserved whenever possible. Many beneficials can be purchased for use in the greenhouse or for specific crops.
  • Pesticides should be used in conjunction with the control measures previously mentioned and only when pest population densities will cause economic damage, or when environmental conditions favor disease. Selective insecticides are products that primarily target the pest(s) you wish to control, with few or no detrimental effects on most beneficials. They may also have other attributes making them less harmful to the user and the environment and may be lumped into a larger category of Biorational pesticides (see Biorational Pesticide section). If the use of a pesticide is required, choose a selective product or another biorational pesticide if possible. Selective insecticides usually spare biological control agents, reduce the risk of secondary pest outbreaks, reduce the impact on the environment, improve farm safety, and minimize the number of applications needed. Broad-spectrum insecticides usually kill many different kinds of pests and beneficial organisms. The use of broad-spectrum insecticides can often lead to resurgence of primary pest populations due to a lack of natural controls, or to secondary pest outbreaks and additional applications. Broad-spectrum insecticides should only be used if no other viable options exist to manage the pest. Proper pesticide application and resistance management techniques should be used to maximize the effectiveness and preserve the useful life of the available products.

Much of the space in this publication is dedicated to lists of pesticide options for weeds, insects and diseases on specific commodities. Effective pest management involves much more than using pesticides. For detailed information on IPM, see the list of publications in the Appendices section, or visit your local Extension System's IPM web site.

  • ‹ Diagnosing Plant Problems
  • Up
  • Pesticide Safety and Use ›
  • Printer-friendly version

Table of Contents

  • About The Guide
  • General Information
    • Warning and Disclaimers
    • Soil Health & Nutrient Management
    • Organic Certification
    • Pest Management
      • Information About Pesticides
      • Diagnosing Plant Problems
      • Integrated Pest Management (IPM)
      • Pesticide Safety and Use
      • Fumigation: Materials and Risks
      • Biological Controls
      • Biorational Pesticides
      • Protecting Honeybees & Native Pollinators
      • Weed Management General Notice
    • Water
    • Worker Protection Standard
    • Produce Safety
    • Risk Management
    • Post Harvest Handling and Storage
  • Highbush Blueberries
  • Strawberries
  • Brambles
  • Currants and Gooseberries
  • Grapes
  • Appendices - Resources & Conversion Tables
  • Authors

Connect with UMass Extension Fruit Program:

Facebook YouTube YouTube Podcast

Subscribe to Fruit Publications »

Center for Agriculture, Food, and the Environment

 

Stockbridge Hall,
80 Campus Center Way
University of Massachusetts Amherst
Amherst, MA 01003-9246
Phone: (413) 545-4800
Fax: (413) 545-6555
ag [at] cns [dot] umass [dot] edu (ag[at]cns[dot]umass[dot]edu)

 

Civil Rights and Non-Discrimination Information

College of Natural Sciences

Login for faculty and staff

CAFE Units

Mass. Agricultural Experiment Station

UMass Extension

UMass Research and Education Center Farms

UMass Cranberry Station

Water Resources Research Center

Interest Areas

Agriculture

Commercial Horticulture

Energy

Environmental Conservation

Food Science

Nutrition

Water

Youth Development & 4-H

Services

Pesticide Education

Plant Diagnostics Laboratory

Soil and Plant Nutrient Testing Laboratory

Hot Water Seed Treatment

Water Testing / Environmental Analysis Laboratory

Projects

Conservation Assessment Prioritization System (CAPS)

Extension Risk Management/Crop Insurance Education

Mass. Envirothon

Mass. Herp Atlas

Mass. Keystone

MassWoods

North American Aquatic Connectivity Collaborative

RiverSmart

UMass Design Center in Springfield

Resources

Extension Sales Portal

Agriculture & Commercial Horticulture Resources

Community & Economic Vitality

Disaster Preparedness

Food Safety

Home Lawn & Garden

Integrated Pest Management (IPM)

Land Conservation Tools

Pollinators

Tick testing

Resources for Faculty and Staff

Extension Programs

4-H Youth Development

Agriculture

Crops, Dairy, Livestock and Equine

Fruit

Greenhouse Crops and Floriculture

Landscape, Nursery and Urban Forestry

Pesticide Education

Turf

Vegetable

Clean Energy

Climate Change

Food Science

Nutrition Education

Value-Added Food

Seal of The University of Massachusetts Amherst - 1863
©2025 University of Massachusetts Amherst · Site Policies · Accessibility