roseclear replacement

mr_e

hi could anyone suggest a replacement for roseclear 3? i'm going to be lost without it.

ERICS_MUM

mr_e wrote: »

hi could anyone suggest a replacement for roseclear 3? i'm going to be lost without it.

Is it to treat blackspot ? A friend of mine recommends spraying them with soapy water (fairy liquid type soap). I can't comment as I don't have any roses.

brogusblue

Rose Clear 4 is the replacement ..

http://www.lovethegarden.com/news/roseclear-replacements-available-for-bifenthrin-based-products

Mojisola

ERICS_MUM wrote: »

Is it to treat blackspot ? A friend of mine recommends spraying them with soapy water (fairy liquid type soap). I can't comment as I don't have any roses.

This can help reduce the aphid population but won't have any effect on blackspot.

brogusblue

I suffer from black spot but i leave mine alone, I have heard that mix a drop or two of washing up liq, two tablespoons of baking soda into a gallon of water. The detergent helps keep the baking soda on the leaf. You will have to re-spray after rain.

amcluesent

It's not so easy to stockpile ready-mixed sprays. I am still using sachets of old skool Bio Multirose.

Mojisola

brogusblue wrote: »

I suffer from black spot but i leave mine alone, I have heard that mix a drop or two of washing up liq, two tablespoons of baking soda into a gallon of water. The detergent helps keep the baking soda on the leaf. You will have to re-spray after rain.

The idea is that the baking soda changes the pH of the leaf and reduces the number of fungal spores which germinate. The soap acts as a surfactant - it makes the water "wetter" - it doesn't make the water stick to the leaves but allows it to spread out further.

One of the best controls is to pick up every infected leaf that falls.

We're getting more blackspot these days because our air is so much cleaner. In the bad old days, the chemical contaminants in the air, particularly sulphur, kept the fungus at bay.

mr_e

thanks for the replys folks/ihave now got roseclear 4 and will try out the baking soda mix:j

Lotus-eater

I don't grow roses, or rather I do, but let them just get on with it. But I have heard that banana skins under the bushes can work wonders with them (I do the same with tomatoes), also garlic or chives planted round the bushes I believe can help.
I would also guess that a garlic spray would also work against black spot. Add a spot of soft soap and it would nicely deal with any aphids as well.