Plant Health Care

Our 5 step Plant Health Program is comprised of time sensitive fertilization and insect control methods. Our program protects your entire landscape and keeps your plants healthy and hardy. Protect your landscaping and invest with a high-quality treatment program by Costello Landscaping.

Step 1: Horticultural oil is applied to smother hibernating insects & over-wintering eggs deposited last year. This application dramatically reduces eggs from hatching & insect populations. 

Step 2: We apply insecticides and fungicides to help prevent damage from insects like aphids and lace bugs. And fungal diseases like leaf spot. 

Step 3: A timed insect and disease control treatments targeting mature and existing foliage. Supplemental fertilizer is applied, as needed. 

Step 4: A timed insect and disease control treatments targeting mature and existing foliage. Supplemental fertilizer is applied, as needed. 

Step 5: We inject fertilizer and nutrients into the feeding rootzone of your trees and shrubs. This step provides plants with a food reserve to utilize over the winter months and promotes strong new growth in the spring.

Costello Landscaping also offers:

  • Winter Burn Prevention: Anti-desiccant sprays add a protective waxy coating to the leaves of broadleaf evergreens to help slow moisture loss - the process of transpiration.
  • Deer Repellent: We offer this service throughout the year.

Our Plant Health Care prescription is the landscape medication that will keep your plants healthy and beautiful!

Call us at (860) 265-4975 or contact us online if you have any questions!

Serving Central Connecticut and surrounding towns:

  • Middletown
  • Barkhamsted
  • Goshen
  • Harwinton
  • Northwest Harwinton
  • Litchfield
  • Bantam
  • New Hartford
  • Plymouth
  • Terryville
  • Thomaston
  • Torrington
  • Watertown
  • Oakville