London (change)
Today 11°C / 3°C
Tomorrow 7°C / 3°C
8 messages
24/06/2012 at 09:32
Hi all, I am new to this gardening thing and have found clumps of black critters on my nasturtiums, how can I get rid of them??
24/06/2012 at 09:40

Hi Bee friendly! You've got blackfly! They love nasturtiums and unless you want to use a pesticide spray the only thing you can really do is 'jet' them off with a blast of water from a hose or sprayer. Some may say use diluted washing up liquid or similar which may work short term but they'll be back!

24/06/2012 at 10:23
Bee friendly wrote (see)
Hi all, I am new to this gardening thing and have found clumps of black critters on my nasturtiums, how can I get rid of them??

Bee friendly, these are, as jude says, blackfly; these are members of the aphid family.

You can get rid of them using 'Pravado'. This is a systemic spray and won't harm other species such as Ladybirds.

24/06/2012 at 18:31

But if you, like me, like to add nasturtium flowers to your salads, the leaves to a salami sandwich on brown bread, and pickle the seeds to use as capers, don't use insecticide - it won't do you any good!!!

24/06/2012 at 22:34

And if you do decide to use something like Provado read the instructions and warnings very carefully.

25/06/2012 at 06:07
Thanks, I will try your suggestions
25/06/2012 at 22:35
jude5 wrote (see)

And if you do decide to use something like Provado read the instructions and warnings very carefully.

Quite right, Jude....definitely don't use any insecticide on crops you intend to eat.

25/06/2012 at 22:41

Or, better still, use a food-safe insecticide - there are plenty of them about.

email image
8 messages