Photo by Melody

Tomatoes: Tomato blossom set spray

Communities > Forums > Tomatoes
Forum: TomatoesReplies: 2, Views: 64
Add to Bookmarks
Grosse Pointe Shores, MI
(Zone 6a)

May 25, 2012
5:18 PM

Post #9138682

Does anyone use tomato blossom set spray? Is it helpful, or not?
Salem, NY
(Zone 4b)

May 25, 2012
6:55 PM

Post #9138793

Blossom set spray was devised to be used where there are cold springs such as in the PNW where it's often too cold to get good self pollenization. It works by inducing what's called parthenocarpy which means that ovules in the tomato ovary, seeds to be, do not need to be fertilized by pollen.

The downside of that is that fruit development is abnormal and it's possible to get malformed fruits that are sometimes mealy, and it also means that there are very few seeds which is important to those who do save seeds from OP varieties.

If lack of pollenization is due to high temps or otherwise bad weather the Blossom Set spray can't do a thing to help/ The active hormone ingredient is different depening on the specific brand but the most common one is IAA, which is indole acetic acid, a plant hormone.

To answer your question directly, no, I have never used it, and won't be and I also wanted to add that Dr. James Baggett of OSU has bred several parthenocarpic varieties for the PNW and the best known one is Oregon Spring, which I did grow many years ago.

Hope that helps.

Grosse Pointe Shores, MI
(Zone 6a)

May 29, 2012
7:54 AM

Post #9143047

Carolyn, thanks for your very imformative post!

It's interesting that none of the important information (for cool spring conditions, possible side effects in fruit) are mentioned on the label.

You cannot post until you register, login and subscribe.

Other Tomatoes Threads you might be interested in:

SubjectThread StarterRepliesLast Post
Blossom End Rot tiG 34 Mar 17, 2013 10:29 PM
TOMATOES ARE SPLITTING oblambert 31 Sep 11, 2012 7:13 PM
Principe Borghese/Juliet in containers? shane478 7 Feb 19, 2009 4:20 AM
Disease? Any idea what this is? BudZander 31 Apr 21, 2010 6:48 AM
Tree Tomato ?? faronell 10 Aug 3, 2007 1:23 AM

We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2015 Dave's Garden, an Internet Brands company. All Rights Reserved.

Hope for America