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12 messages
11/01/2013 at 18:57

I have been spreading my home made compost around some of my shrubs and trees and came across these grubs:- large, white, with orange heads curled in a C about 3/4 inch across.  Are they stag beetle grubs?  What should I do with them?  In the past I have thrown them under the hedge, but if they are stag beetles I want them to survive

11/01/2013 at 19:14

Hello Trish  - do they look like this ?

http://www.stagbeetles.co.uk/stagbeetlelarvae.htm

Pam LL x

11/01/2013 at 19:18

Could vine weevil grubs?-only size might be wrong?-chafer grubs?-a picture would help Trish?

11/01/2013 at 19:19

This is a better photo

 

http://bugguide.net/node/view/15821

 

Pam LL x

11/01/2013 at 19:35

I usually find stag beetle larvae in the woodpile rather than the compost heap. Chafer larvae live in soil so probably compost heaps as well. 

11/01/2013 at 19:41

Most likely Rose Chafer larvae, which are often found in compost heaps and are about 20mm long, which fits well with the 3/4 inch size quoted.  Stag beetle larvae are a fair bit bigger than that (up to 110mm, but usually about 50-80mm) and are usually only found in (or in the soil under) dead wood.

11/01/2013 at 20:12
11/01/2013 at 20:19

Thank you Lilylouise,Sotongeoff, Nutcutlet and Bob the Gardener for your replies.Your pics Lilylouise did look like the grubs I found. I returned them to the corner of the heap.  I will have to have a look tomorrow and measure them Bob.The 3/4 inch was across the C, so they  could be longer.

11/01/2013 at 20:37

Thankyou Dovefromabove the info you sent was very helpful.  I did see rose chafers in the garden last summer so I think the grubs are rose chafers.  ( I'm going to check if mine are hairy ,but they didn't un curl so couldn't say if they travelled on their back)

11/01/2013 at 21:56

If they are Rose Chafer, they are very beneficial as far as helping the composting process goes.

11/01/2013 at 23:28

I have rose chafer beetle larvae in my manure, have already researched it to find out what they were, and Dove's links are very good.

12/01/2013 at 07:06

Lets hope we get some sun this summer so we see them flying about 

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