Not Too Late to Apply Oil

It used to be called dormant oil. Everyone thought the only time you could apply it was the winter. Now it's called horticultural oil because it can be applied anytime temperatures are warm but below 85° F.

Monterey horticultural oil in pints, $18
http://www.viragrow.com/weed-pest-control

Don't be afraid to apply these insecticidal oils any time trees, fruit trees, shrubs are NOT in bloom. It does a great job in controlling aphids which is a number one problem this time of year on most plants. Don't apply it to plants in bloom because it will interfere with honeybees.

Viragrow carries Monterey Horticultural Oil which is a refined mineral oil manufactured for spray equipment. Use a hose and applicator or for better results a pressurized sprayer or backpack sprayer.

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Apply Viragrow's Horticultural Oil 2-3 Times This Winter

Applying horticultural oil to your fruit trees and woody landscape plants is very important this winter if you want to reduce pests for next year. Make one application in December and then another in January. You can use a hose end applicator or pump sprayer.

This is a "summer" oil so it can be applied when leaves are out and up to temperatures about 90F.

Pests do not migrate. They survive on your landscape plants and fruit trees until next year when they lay more eggs and start the process all over again. This is your chance to suffocate them!

Insects controlled include:
Aphids, caterpillars, mites, leafhoppers, peach twig borer, scale insects and many others!

Application:
Pick a warm day with no wind.
Use 3 to 4 oz of oil mixed together with 96 to 97 oz of water and mix thoroughly. Spray the trunks and large limbs of fruit trees and ornamental trees and shrubs from the base to as high as possible.
To be effective the oil spray must come in contact with the overwintering pest.

Ultrafine oil, 2 1/2 gal.

 Contact us for smaller amounts than 2 1/2 gallon quantities.

Some outside reading about oils:
Washington State University
Colorado State University

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