By Patricia23q
Surrey,
United Kingdom 
I have two tubs of sweet peas, one of which has succumbed to greenfly, short stemmed flowers and leaves which have brown marks on them. These were new seeds from English Sweet peas. The other tub, quite close by, appears greenfly less, fairly long stemmed flowers and healthy leaves. These were from seeds which have been collected year on year. I have now sprayed the greenfly with a soapy solution, and they are a little better. The two tubs have been treated in the same way, watering etc. Any ideas gratefully received.
18 Jun, 2021
Answers
Many thanks for your advice. Will do.
18 Jun, 2021
well as you have treated them for greenfly all you need to do is keep them well watered and after flowers have died dead head them to keep them flowering. a feed with half strength tomato feed every 2-4 weeks will help too.
18 Jun, 2021