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Yellow Spots on Pumpkin

Posted: Tue May 03, 2011 3:57 pm
by PrincessJelly
Help! My pumpkin plants are sporting bright yellow spots on their leaves and today I noticed that one of the stems is turning yellow too - what could be causing this? They have been in pots for four weeks (after buying small plants from the garden centre), and they were planted out yesterday.

Thanks in advance!!

Re: Yellow Spots on Pumpkin

Posted: Tue May 03, 2011 5:26 pm
by alan refail
Hi PJ

I know it's not helpful to say this, but your pumpkins are rather small too be planted out at the moment.

Yellow spots on the leaves are usually (later in the season) a sign of powdery mildew

http://www.rhs.org.uk/Gardening/Grow-Yo ... o-Z/Squash

Click the Problems tab

Re: Yellow Spots on Pumpkin

Posted: Tue May 03, 2011 5:32 pm
by PrincessJelly
I thought they would be OK as we are down south and our garden is sheltered. Ooops. I guess you learn by your mistakes. Thanks for your help and the link that you have sent me. Much appreciated.

Re: Yellow Spots on Pumpkin

Posted: Tue May 03, 2011 6:43 pm
by peter
Could be frosty in places tonight. :wink: