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Produce => Pests & Diseases => Topic started by: Mushy Pea on May 01, 2010, 12:23:09

Title: What's this?
Post by: Mushy Pea on May 01, 2010, 12:23:09
Whilst digging in my spuds I found a few of these maggotty things.

(http://i7.photobucket.com/albums/y289/pigbun/DSC00840.jpg)

Any entamologists out there know what it is?

Is it a "good guy" or a "baddie"?

Thank you in advance of your replies.

MP
Title: Re: What's this?
Post by: Bugloss2009 on May 01, 2010, 12:30:20
wireworm

a baddie, esp with potatoes
Title: Re: What's this?
Post by: Baccy Man on May 01, 2010, 12:33:16
Chafer grub, usually regarded as a pest but the local bird population will appreciate any you dig up.

Looking more closely it could be a wireworm
Title: Re: What's this?
Post by: davyw1 on May 01, 2010, 14:16:15
Its a leather jacket larvae from the crane fly they are usualy found a couple of inches under the soil. they crawl round the young veg to feed.

[attachment=1]
Title: Re: What's this?
Post by: Unwashed on May 01, 2010, 14:20:54
I don't think it's any of those

(http://t1.gstatic.com/images?q=tbn:Xxrti6YOjVmYxM:http://www.udel.edu/IPM/images/pests/wireworm3.jpg)
wire worm

(http://t1.gstatic.com/images?q=tbn:gF7xmZzhYm-OSM:http://www.greatgrass.co.uk/Pictures/Chafer%2520Grub%2520%2520-%2520Scotts.jpg)
chafer grub

(http://t1.gstatic.com/images?q=tbn:02-9doO4skVe5M:http://upload.wikimedia.org/wikipedia/commons/3/32/Tipula_leatherjacket_Emelt.jpg)
leatherjacket
Title: Re: What's this?
Post by: davyw1 on May 01, 2010, 14:55:58
So that only leaves caterpillar and vine weaval
Title: Re: What's this?
Post by: Suzanne on May 01, 2010, 17:59:50
If you look closely you will see it has a definite head with jaws. I think it is a beetle larvae (potemtially looks like an early instar of a ground beetle?). So a good guy - they eat slug eggs and young slugs.
Title: Re: What's this?
Post by: Suzanne on May 01, 2010, 18:07:58
Forgot to say this is a picture of a later instar - when they develop more pronounced coloured chitin on their backs.
Title: Re: What's this?
Post by: Robert_Brenchley on May 01, 2010, 19:41:31
It's hard to be sure from the pic, but I think it's probably a beetle, in which case it's a goodie.
Title: Re: What's this?
Post by: davyw1 on May 01, 2010, 20:35:55
Good hint Robert its a Ground Beetle larvae

[attachment=1]
Title: Re: What's this?
Post by: Unwashed on May 02, 2010, 10:05:30
Well done Suzanne, you saved a good guy!
Title: Re: What's this?
Post by: Mushy Pea on May 02, 2010, 10:59:04
Many thanks Suzanne.  ;D

On closer inspection it certainly does appear to be the "good guy".

(http://i7.photobucket.com/albums/y289/pigbun/maggotythingatlottie.jpg)

It seems to have those "clear" patches on the top of each segment.

I'm always pleased to learn something new.

MP