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11 messages
15/07/2013 at 20:54

I have a bumper crop of raspberries this year, growing glen moy and glen ample. I have noticed brown crusty marks on the tops when I pick them. the leaves on my plants seem to be being eaten away too. I have fed and watered the plants regularly. I also noticed a bug under a leaf, 3 or 4 mm long black with orange markings. Could this be my problem? If so, what is it and can the problem be cured.

Yours hopefully

Mandy

15/07/2013 at 21:01

Raspberry beetles. The larvae burrow into the fruit starting at the flower end. The result is  the brown hard bits around the fruit.

Pick off any larvae or beetles you find.  Brown with orange markings might be ladybird larvae, looking for aphids

15/07/2013 at 21:03

Type "ladybird larvae image" into google - is that what you saw?  If so, excellent news.

The crusty tops could have been caused by aphids which that ladybird larvae are now eating for you.

15/07/2013 at 21:03

Thanks for that. I won't need to get rid and start again then, she asks hopefully ! Is there a spray I can use?

15/07/2013 at 21:07

I don't think they were ladybird larvae unfortunately, nor did it look like a raspberry beetle. Totally stumped!!!!

15/07/2013 at 21:07

You can use pyrethrum, but you have to leave a gap between spraying and picking.

15/07/2013 at 21:14

Thanks. I have photos but not sure how to get them onto this site. Any ideas?

15/07/2013 at 21:23

If you are on a PC, click the little green tree when replying and browse to wherever you have saved the photos on your computer, then click Upload image.  If using an Apple device you need to upload first to a photo site like Picasa and then use the link to the image.

15/07/2013 at 21:40

http://s4.gardenersworld.com/uploads/images/original/27564.jpg?width=272&height=350&mode=max

 

http://s4.gardenersworld.com/uploads/images/original/27563.jpg?width=272&height=350&mode=max

Not sure if you can see these photos but here goes!

15/07/2013 at 23:35

That is a Harlequin ladybird larva.  Not the best type to have as they eat other ladybirds when they run out of aphids, but at least they do eat aphids!

PS, the top image is one that is in metamorphosis (ie a pupa) and an adult Harlequin will soon pop-out.

16/07/2013 at 17:14

Thank you Bob. I will keep an eye of them now and enjoy eating my raspberries.

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11 messages