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Cornell Cooperative Extension

Suffolk County

  • Agriculture
  • Community Education
  • Gardening
  • Horticulture Labs
  • Marine
  • Energy
  • County Farm
  • 4-H
  • Peconic Dunes
  • Recursos en Español
Japanese Beetle Grub

Control grubs in your lawn.

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  • Horticulture Diagnostic Labs >
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  • Lawn Pest Control
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Lawn Pest Control

2025 Home Lawn Fungicide list

Brown Patch on Turfgrass

Control of Broadleaf Lawn Weeds

Crabgrass Control

Dollar Spot on Turfgrass

Dreschlera Leafspot

Grubs in your lawn

Lawn Insects

Moss Growth in Lawns

Necrotic Ringspot on Turfgrass

Yellow Nutsedge in Turfgrass

Pythium Blight and Root Rot on Turfgrass

Red Thread on Turfgrass

Rust on Turfgrass

Summer Patch on Turfgrass

Stripe Smut on Turfgrass

Contact

Alice Raimondo
Horticulture Consultant
aw242@cornell.edu
631-727-4126

Last updated April 29, 2025

Horticulture Factsheets

  • General Gardening Information
  • Sustainable Gardening
  • Vegetable Gardening
  • Vegetable Diseases
  • Vegetable Insects
  • Lawn Care
  • Lawn Pest Control
  • Tree / Shrub / Groundcover / Vine
  • Tree and Shrub Maintenance
  • Tree and Shrub Insect Pests
  • Tree and Shrub Disease
  • Flowers, Bulbs, and Ornamental Grasses
  • Small Fruit
  • Small Fruit Pests
  • Tree Fruit Growing
  • Tree Fruit Insect Pests
  • Tree Fruit Diseases
  • Indoor / Outdoor Insect Pests
  • Tick Biology and Control
  • Wildlife
  • Indoor Plant Care
  • Christmas Trees
  • Integrated Pest Management
  • Poisonous Plants
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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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