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caliloo_gw

Help please with Cornell Forumla

caliloo
20 years ago

Hi All

I have the "recipe" and I would like some clarification on what sort of fish oil/seaweed emulsion is recommended. Actually, I would like to know any brand name I can google for or ask my local nursery to special order... can someone suggest one? Is Neptune's Harvest the same stuff? I am going to need it soon since my roses are leafing out and I would like to get the first dose on asap.

thanks so much in advance!

Alexa

Comments (8)

  • LizzieA
    20 years ago

    I don't think it matters much. The original Cornell formula is just ultrafine oil and baking soda in water, the soap is there to make it stick to the leaves and I believe the fish emulsion is just a foliar feed.

  • caliloo
    Original Author
    20 years ago

    Thanks Lizzie!

    I guess I can leave it out then!

    Alexa

  • petaloid
    19 years ago

    Liquid fish emulsion encourages the growth of beneficial microorganisms in the soil, but if you are worried about the odor attracting unwanted visitors to your garden you may want to use other things that have that effect on the soil, such as compost.

    But -- don't skip the seaweed!

    Liquid seaweed/kelp stimulates growth when applied to leaves or soil and I swear by it. I've been using Grow More brand cold-processed liquid seaweed with good effect -- Neptune's Harvest is another popular brand. Response is a more concentrated formula and it's an excellent product as well.

    -- Janene

  • chesh
    19 years ago

    Would it be possible to get a copy of the cornell formula? Thanks. Chesh

  • caliloo
    Original Author
    19 years ago

    This is the "recipe" and notes I saved from last year when Field posted it. Thanks Field!

    *******************************************************

    April through October, spray monthly (or only when needed) with the modified Cornell University organic spray (see formula below) to control black spot, powdery mildew, spider mites, and aphids.
    Modified Cornell Formula: Mix into one gallon of water, in the order listed:
    2 tbsp. of ultrafine horticultural oil (such as Sunspray oil)
    1 heaping tbsp. of baking soda
    1 tbsp. of fish oil/seaweed emulsion
    3-5 drops of Superthrive®
    1 tbsp. of mild dishwashing soap (such as Palmolive green -- but see note below)
    .
    [Note: Labels on newer containers of Sunspray oil indicate that it now contains an emulsifier. In that case, the dishwashing soap can be omitted.]
    Mix well and spray with a pump-up sprayer late in the evening, after first watering your roses thoroughly and spraying them with the hose to scare off some, most, or all of the beneficial insects.
    DON'T ADD VINEGAR. NEVER USE ANY TYPE OF FISH OIL/SEAWEED PRODUCT CONTAINING SULFUR WITH A HORTICULTURAL OIL SPRAY. AND NEVER MIX A CHLOROTHALONIL FUNGICIDE (e.g. Daconil or Fung-onilÂ) WITH HORTICULTURAL OIL OR USE THEM ON ANY PLANT WITHIN 10 DAYS OF EACH OTHER.
    For black spot control, it is important that you spray all of the plant's wood, as well as the foliage. It has been found that the black spot spores reside in lesions in the canes and that they attack, not only the foliage, but also the canes and prickles.
    Used with permission from the Field Report

  • StacyInAustin_z8b
    19 years ago

    Do I have to worry about spraying this in the sun?

  • Field
    19 years ago

    Yes, you do. Water the roses well in the morning or the night before and then spray in the evening after the sun has set.

  • maureenpm00
    19 years ago

    Hi. Maureen from Long Island here. Does this cornell formula really help the roses? How often do you have to spray, and what is a "pump up" sprayer? (I'm new to roses).

    Also, can you buy the Cornell formula already made? or do I have to make my own?

    Thank you,
    Maureen