Whats safe to control aphid in the greenhouse?

[tim]

Aha - marigolds - that explains it all.

I was NOT questioning your ability!

[tim]

[Barnowl]

Sorry Spooky, I didn't pick up either that you were enquiring about Marigolds.

I grow african and french from seed from online seed merchants. Usually a good germination rate. The theory is scented marigolds deter insects and the french / mexican varieties roots exude something that deters nematodes - hence good for root crops (could be the other way round  :) )

This year I'm also trying a rather extreme tagetes called Tagetes Minuta, not so succcessful in germinating but have some on their way now. They can grow up to about 6ft tall - not particularly pretty - but are meant to be very hostile to other plants, so I'm hoping they'll get rid of some mares tail and couch for us.   

[Spookyville]

no don't worry no offence taken!!! crossed wires, but yes I was referring to marigolds.

thinking of planting a couple in each grow bag for the toms, see if it works...

[caroline7758]

Going back to the original question, do marigolds work for aubergines as well? I'm squishing greenfly on mine daily and putting off moving them out to the greenhouse in case they spread to my other plants.

[valmarg]

Its got to be worth a try.  If it works for one plant, no reason for it not to work on another.

valmarg

[caroline7758]

Just been out to the greenhouse & found whitefly on some of my other plants anyway, so may as well!

[Barnowl]

Blooming birds have been eating our marigolds - didn't happen last year. What's going on?