Cornell Cooperative Extension

Suffolk County
retaining wall

Retaining walls help direct water away from your home.

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

Last updated March 29, 2017

IPM Factsheets