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Cornell Cooperative Extension

Suffolk County

  • Agriculture
  • Community Education
  • Gardening
  • Marine
  • Suffolk County Farm
  • 4-H Youth
  • Peconic Dunes 4-H Camp
  • Recursos en Español
retaining wall

Retaining walls help direct water away from your home.

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  • Agriculture >
  • Pest Management & Turf >
  • IPM Factsheets >
  • Diagnosis
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Diagnosis


Assessing Drainage Problems

Indicator Plants for Site Conditions

Diagnosing Hazard Trees

Do I have Root Rot?

Collecting a Sample To Submit for Diagnosis

Diagnostic Guide for Landscape Plants Exhibiting Nonspecific Symptoms

Drainage, Slopes and Retaining Walls

Quick and Easy Symptom Checker

QuikLeaf Diagnosis Chart

Site Evaluation Form

Contact

Tamson Yeh
Pest Management / Turf Specialist
tsy3@cornell.edu
631-727-7850 x 240

Last updated March 29, 2017

IPM Factsheets

  • Athletic Fields
  • Diagnosis
  • Evergreen
  • Fertilizer
  • General Plant Info
  • Insects
  • Installation and Maintenance
  • IPM
  • Irrigation
  • Misc. Pests
  • Non-Living Plant Injury
  • Poisonous Plants
  • Safety and Equipment
  • Soil, Mulch, Compost
  • Specific Plant Choice
  • Specific Plant Situation
  • Trees
  • Turf
  • Useful Math and Charts
  • Weeds and Moss
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Cornell Cooperative Extension
Suffolk County

Extension Education Center
423 Griffing Avenue, Suite 100
Riverhead, New York 11901-3071
TEL: 631-727-7850
suffolk@cornell.edu
Hours: 8:30am-4:30pm

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