Landscape Integrated Pest Management

Effective pest management in landscaping goes beyond mere pesticide use.

Integrated Pest Management (IPM) strategies, considering environmental, economic, and societal impacts, offer longer-lasting and safer solutions compared to relying solely on pesticides.

IPM's initial investment in time and effort pays off, significantly reducing long-term costs and risks associated with environmental and health concerns caused by non-target pesticide effects and the development of resistance in pests.

To execute an efficient IPM program, understanding the landscape as an ecosystem is crucial. This approach involves five key steps: pest identification, monitoring, decision-making, intervention, and evaluation.


Accurately identifying pests is vital as different pests require specific control methods. Seeking assistance from local Extension offices or referencing pest identification guides helps pinpoint pests affecting plants. Observing the type of plant damage and identifying specific symptoms guides subsequent control strategies within the IPM framework. Understanding the pest's life cycle and vulnerabilities informs effective intervention methods.



After identifying the pest, ongoing monitoring is crucial for landscape managers. Regular plant inspections detect and track damaging pests, providing valuable insights into the ecosystem. This process also assesses the effectiveness of prior control measures.

Visual inspection of plant material remains the primary method, checking for signs of insect activity or feeding, including frass or insects themselves. Gently shaking plant material onto a white surface aids in identifying and counting dislodged insects. Trapping devices serve for monitoring, not control. Monitoring helps pinpoint pest-prone areas and tracks pest activity throughout the year.



Monitoring temperature, humidity, and rainfall aids in predicting pest activity as insects are directly influenced by their environment. Degree-day models, predicting pest development based on temperature exposure, offer forecasts for some pests.



Determining intervention thresholds poses a challenge in IPM. Assessing acceptable damage levels in ornamental landscapes varies based on factors like pest type, plant species, landscape function, and control costs. Establishing damage and aesthetic thresholds aids in this assessment, although many pests lack defined thresholds.

Consider timing control measures; efficacy depends on the pest's life stage. Treating immature scale insects during their crawler stage proves more effective than targeting adults. Considering the pest's development stage prevents ineffective or unnecessary treatments.


Manipulating the environment to bolster plant health and deter pests is a key strategy. Strategies like selecting pest-resistant tree species or adjusting lawn mowing heights to reduce stress prove effective. Appropriate fertilization based on local conditions helps maintain healthy lawns.


Physically removing or excluding pests from plants is a non-intrusive control method. Hand removal of insects or discarding turf clippings can reduce pest populations. Insect trapping and pruning infested plant material are also effective.


Increasing vegetation diversity in landscapes attracts natural enemies, aiding in biological control. Augmenting natural enemy populations or releasing insects can assist, especially in controlled environments. Predatory insects in turf and ornamentals act as natural enemies.


For safe and effective pest management, consider biorational insecticides derived from natural sources. Synthetic pesticides designed for specific targets help preserve beneficial insects but must be used cautiously to avoid unintended issues. Adhering to labels and updated Extension resources prevents misuse.
Following regulations is crucial for safe pesticide use in the landscape industry. Labels offer precise instructions and environmental risk reduction strategies. Understanding soil type is essential, especially in sandy soils prone to leaching.


Evaluating management strategies in an IPM program highlights successes and areas needing improvement. An adaptable IPM approach continually evolves to address evolving pest management challenges.