There may be SpritH. but you can also use garlic spray to deter the butterflies and moths from laying their eggs on your verbascum.

MG

Is that something you make, MG? If so, please could you tell me how?

I had these one year, big black/white and yellow things
if you touch them they squirt greenstuff at you!
I just took them off and squashed them. After they had wrecked the flowers of course.

Crush 2 garlic bulbs and add them to 2 pints of water.
Boil the garlic for 3 minutes until it is blanched.
Cool the liquid and strain off the garlic.
Add enough water to make the liquid up to 2 pints.
Store in a screwtop jar.
Fill a watering can fitted with a rose with 1 gallon of water and 1 tablespoon of the garlic liquid.
Use this to water the open leaves of hostas, always during the late afternoon, every 14 days or after a storm

Hi Spritz you can either buy the concentrate or make but it does not work once there are caterpillars.

So take a good handful of garlic bulbs put in blender and wizz down to a paste with some water. Filter out the rubbish and then use diluted 1:10 in a spray on just about anything to keep off aphids, butterflies, moths and other beasties that lay eggs on the plant. Works great on veggies as it is a systemic. After a couple of seconds we can't smell the garlic but the insects can.

Some folk add chilli pods - not sure if it makes a difference or not.

Thanks, all. I shall have a go. :-)

Good luck MG

When you say garlic bulbs do you mean the individual ones or the whole clove?

Whole clove Steragram

Thanks MG