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.
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
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.
Thanks for that. I won't need to get rid and start again then, she asks hopefully ! Is there a spray I can use?
I don't think they were ladybird larvae unfortunately, nor did it look like a raspberry beetle. Totally stumped!!!!
You can use pyrethrum, but you have to leave a gap between spraying and picking.
Thanks. I have photos but not sure how to get them onto this site. Any ideas?
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.
Not sure if you can see these photos but here goes!
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.
Thank you Bob. I will keep an eye of them now and enjoy eating my raspberries.