What's eating the heuchera leaves? - Knowledgebase Question

North East England
Question by Saitarou
September 3, 2017
In the middle of the summer, I had my first attempt at some cuttings. I took 5 heuchera cuttings, and watched over them for a few months. Only 4 managed to survive to the end of summer, and they are growing.

The two that grew best are:
Thumb of 2017-09-03/Saitarou/8df86f

However, recently the other two have had their leaves or stems eaten.


Thumb of 2017-09-03/Saitarou/b3af40


Thumb of 2017-09-03/Saitarou/3d3602

I can't see traces of slug/snail slime on the compost, but will apply slug pellets soon just in case.

I do tend to find tiny, brown, cylindrical deposits on the top of the compost (as seen below) but it may just be dried up compost.

Thumb of 2017-09-03/Saitarou/244530

I've heard vine weevils are sometimes culprits, and have checked as far down as i'm willing to go, so as to not disturb the plants growth. I found no larva, but unsure whether I looked deep enough.

I'm not knowledgeable on garden pests, so if anyone can recognise my leaf-eating culprits, that would be a big help. I'm proud of my first attempted cuttings though.

Name: Trish
North Yorkshire
Image
Answer from Yorkshirelass
September 3, 2017

0

It may be vine weevil, however they usually chew away at the edges of leaves leaving a semi-circular 'bite' mark.
They are particularly fond on Heuchera so it may be worth while gently tipping your plant out of it's pot to examine the roots.
The grubs are easily identified, they are white with a brown head and if present will devour roots causing the plant to collapse.
If you find any I would recommend you wash off all the affected compost from the plant and dispose of it (not on the garden or compost bin). Then replant in fresh compost.

Good luck

Name: Julia
Washington State (Zone 7a)
Image
Answer from springcolor
September 3, 2017

0

Mix a bit of food grade diatomaceous earth in the soil and a bit on top.

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