• Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education skip experiences global resources cider press projects digital market permies.com pie forums private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Anne Miller
  • r ranson
  • Pearl Sutton
  • Leigh Tate
stewards:
  • Beau Davidson
  • Nicole Alderman
  • paul wheaton
master gardeners:
  • Carla Burke
  • John F Dean
  • Nancy Reading
  • Jay Angler
gardeners:
  • Jules Silverlock
  • Mike Barkley
  • Jordan Holland

Truth or myth: does borage deter tomato hornworms?

 
gardener
Posts: 3536
Location: Central Oklahoma (zone 7a)
1201
forest garden trees woodworking
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I planted a single borage plant in 2014 but it succumbed very early to an infestation of squash bugs. So I don't have much experience with it, although I found the leaves and flowers very tasty. I hope to plant a lot more in 2015.

I just stumbled by accident over this detail in a post by John Polk in a honeybee plantings discussion:

As a companion plant for tomatoes, it [borage] will eliminate, or reduce hornworm problems.



John also posted a very nice borage photo:



Searching on permies turned up another reference to a line on an external website:

Borage acts as a deterrent to tomato hornworms and cabbage worms and is known to attract bees and wasps.



Some independent Googling turns up hundreds of references to the notion that borage deters hornworms and is therefore a good companion planting for tomatoes. But most of those references are like the ones here -- brief sentences without much detail. And often (out on the web) prefaced by weasel words like "it is said" and "I have heard". The way this lore appears in so many places with so little detail, it "feels" like one of those things that everybody thinks they know but nobody really has tested or tried to prove. Often if you really did into these bits of lore they turn out to be something printed in a farmer's almanac 200 years ago by some almanac-selling dude prone to making stuff up.

In the course of this searching, I found one lovely page with gorgeous photos of borage, tomatoes, and green hornworms. That gardener's experience is that hornworms don't care if you plant borage or not: http://www.shenandoahvalleyflowers.com/gardening/the-borage-the-hornworm-and-the-bumble-bee

So I thought I'd make this post to create a central spot for collecting borage versus hornworm lore, knowledge, and experience. Permies, what say you?

 
Posts: 493
27
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Did you know the tomato horn worm is edible?
A question on this developed on should some tomatoes be grown to feed this worm?
I can not raise the horn worm because I have a large number of wasps that live off the horn worm.
But in areas without such one could raise the horn worm for chicken feed or people feed.
It tastes something like a shrimp if prepared right.
 
Dan Boone
gardener
Posts: 3536
Location: Central Oklahoma (zone 7a)
1201
forest garden trees woodworking
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Currently I'm not eating animal products, and I'm afraid hornworms aren't where I'm planning to start when I do.
 
pollinator
Posts: 3553
Location: Massachusetts, Zone:6/7 AHS:4 GDD:3000 Rainfall:48in even Soil:SandyLoam pH6 Flat
479
2
forest garden solar
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Does drinking enough water and getting enough sleep make you immune to the flu/sickness. NOPE, but I am pretty sure it helps. (not even the flu vaccine provider will say that).


I would assume that borage helps other insects to out compete the hornworm and also confuses them with it's aromatics/color/shape, but if the farms on all 4 side of you are overrun by hornworm, a miracle might not be in store for the tomatoes.
 
You can thank my dental hygienist for my untimely aliveness. So tiny:
Kickstarter for the Low Tech Laboratory Movie
https://www.kickstarter.com/projects/paulwheaton/low-tech?ref=bv1
reply
    Bookmark Topic Watch Topic
  • New Topic