Pests and diseases on crops are always a problem in the garden – and my Pumpkin crop is no exception, in the last few days, the leaves of my plants have unfortunately developed Powdery Mildew.

Powdery mildew is easily identified by the powdery white spores on the surface of the foliage, severely affected leaves will quickly shrivel and die back. The spores of this unsightly disease are air borne so it can spread quickly and easily where plants are growing close together.

Powdery mildew is particularly prevalent during humid, wet summers like we’ve had this year, where the spores are spread from leaf to leaf by rain splashes.

powdery mildew on pumpkin leaves

If you notice powdery mildew appearing then you’ll need to act fast to stop it spreading: You can remove and destroy infected leaves to control its spread. Put them straight in the household waste – never compost the leaves as this will simply spread the problem again next year. Keeping the roots evenly watered will also help to prevent the problem.

If the infection is over a wider area then you may have to use a chemical control; there are lots of fungicides available to pick up at your local garden centre. Just be sure to check that you choose one which is suitable for use on edible crops. Always follow the manufacturer’s instructions, and spray the plants evenly, both above and beneath the foliage.

Hopefully that will solve the problem, but if necessary then you may need to repeat the treatment in a few weeks time.

Check out my other videos on growing pumpkins here :

How to grow pumpkins. Part 1: sowing pumpkin seeds

How to grow Pumpkins. Part 2: Planting out Pumpkin plants.

How to grow Pumpkins with Thompson & Morgan. Part 3: Feeding and pollination

I hope you enjoy pumpkin growing this year – who knows, you might grow your very own giant!

 

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