Hansen's Tree Service

Our work is tree-mendous!

Order Mulch Online
Get A Hassle Free Estimate
ST LOUIS METRO: p. 636.379.1830 f. 636.379.1866
BRANSON/SPRINGFIELD: p. 417.272.8733 f. 417.272.0704
MENUMENU
  • Home
  • Tree Services
    • Commercial Tree Care
      • St. Louis & Springfield Locations
        • Urban Forestry Consulting Services
        • Grinding & Land Clearing
        • Green Waste Recycling
        • Green Waste Drop Off
        • Snow Removal (St. Louis Only)
    • Residential Tree Services
      • St. Louis & Springfield Locations
        • Tree Consulting At Your Home
        • Tree Pruning
        • Tree Removal & Stump Removal
        • Dynamic Tree Cabling & Limb Support
        • Plant Health Care & Diagnosis
  • Products
    • St. Louis Location
      • Organic Mulch - Order Online
      • Organic Compost: The Magic Bean - Order Online
      • OMRI-Certified Organic Compost
      • Super Soil Topsoil - Order Online
      • Bio Soils
      • Roll-Off Containers
    • Springfield Location
      • Organic Mulch
      • Organic Compost
      • Bio Soils
      • Roll-Off Containers
  • Resources
    • Mulch Calculator
    • The Treemendous Blog
    • Video
    • Galleries
    • Partners & Links of Interest
    • FAQ
  • About Us
    • Certified Arborists
      • Skip Kincaid, BCMA
    • Certificate Of Insurance
    • Testimonials
  • Contact Us
    • St. Louis & Springfield Locations
      • Contact Us
      • Emergency Tree Service
      • Gift Certificates
      • Get A Hassle Free Estimate!
  • Operation S.O.S.
    • Hansen's Wall Of Honor
Home // Tree Care // Prevent Insect Problems With Horticultural Oil Treatments

Prevent Insect Problems With Horticultural Oil Treatments

October 24, 2018 by Hansen's Tree Service

The best way to treat any problem is to take steps to prevent it from happening in the first place.  This is true when it comes to caring for your trees. Take preventive measures to protect your trees against bug infestations by applying horticultural oils to the twigs and branches during the dormant season.

Because they are often applied during the late winter dormant season (February and March), horticultural oils are often referred to as “dormant oils”.  While the dormant season is most common for applications, certified arborists will sometimes prescribe their use during the growing season, too.

Hit ‘Em First: Pest Prevention During Winter Produces Healthier Trees Year Round

How Do Horticultural Oils Work?

Horticultural oils are very thin and highly-refined oils that are mixed with water and then sprayed on trees and shrubs. These oils kill pests and their eggs that are over-wintering on trees and shrubs by cutting off their supply of oxygen.   The mode of action is mostly physical which means the material provides one of the safest and most effective control options. Insects cannot develop a resistance to oil and the material is benign to beneficial insects and spiders.

Horticultural oils control a wide range of overwintering insects including many scale insects (found mostly on oaks, maples and pines) and spider mites.

When To Use Horticultural “Dormant Oil” Treatments

Dormant season applications are preventative and will control overwintering eggs and insects, while applications made during the growing season target pest that have already hatched and may be actively feeding.  While dormant season applications are most effective and pose little risk to the tree, growing season applications may cause tip burn or leaf curl if applied improperly.

As with all tree care treatments, always read the instructions and contact a professional before applying dormant oils. You want to keep your trees safe and if you are unsure how or when to apply, call a professional arborist.

Call A Professional

It is advised to call a professional tree care company like Hansen’s to schedule a hassle free plant health care and diagnosis consultation. They can determine if, and when, dormant oils should be applied to your trees.

Need Tree Consulting At Your Home?

Call Hansen’s For A Hassle Free Estimate With An Arborist.  636.379.1830

Filed Under: Blog, Tree Care Tagged With: dormant tree oils, Horticultural Oils, pest management

PAGES

Services

Products

Resources

About Us

Contact Us

CONTACT

ST. LOUIS/ST. CHARLES:
p. 636.379.1830 f. 636.379.1866

ST. LOUIS/ST. CHARLES:
636.812.6408


BRANSON/SPRINGFIELD:
p. 417.272.8733 f. 417.272.0704

THIS SITE

FAQ

© Copyright 2015 · All Rights Reserved · Created by jWeb