caterpillar on blackberry

csmbaMay 10, 2011

I noticed leaves being eaten on my blackberry (or maybe red-berries). holes in the beginning, but if you let them be for several days, the entire leaf is almost a skeleton...

I looked and saw small, very thin, about half inch long Caterpillar (I think they are at least). almost transparent, the bigger ones a bit green.


Should I let them eat the leaves?

Will this damage my fruit (I care about the fruit, not the leaves)

Are there any organic ways of protecting the plant from them in case I need to?


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jean001a(Portland OR 7b)

Perhaps a sawfly. I know that raspberries get them. Look similar to caterpillars but aren't. So Bt won't work.

    Bookmark   May 10, 2011 at 11:21PM
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prestons_garden(9B SZ 22 HZ 6 SoCal)



    Bookmark   May 10, 2011 at 11:47PM
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Id try BT first.

Its organic and even if its a sawfly, it couldnt hurt to keep the pillars away.

Im sure you could find uses for it around the rest of your garden.

I got a little bottle of Safer BT a long time ago.
You mix such a little amount in the water that it seems to last forever :)

    Bookmark   May 12, 2011 at 3:27AM
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rhizo_1 (North AL) zone 7

mgm, it's actually not a good idea to use Bt unless a caterpillar problem has started. It's one of those products that has become overused and abused, leaving many native moth and butterfly species endangered.

So, as with just about all pesticides, organic or not, we should use only when necessary, only as directed, and with consideration of the bigger picture.

    Bookmark   May 12, 2011 at 1:52PM
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rhizo, Thanks for your input!

I dont use it when butterflys are out, but native moths? Kill em all...

lol jk but i do use it when its pillar season. Its not worth letting them get ahold of my plants, or letting the borers in.

    Bookmark   May 12, 2011 at 2:04PM
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