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johnjoe

By Johnjoe

Ireland Ie

I am trying to identify white spots on the underside of my Brussel sprout leave and how do I get rid of it. I would be most grateful for a answer.



103_1127

Answers

 

That's where aphids hang out, so that would be my guess. They secrete a substance called 'honeydew' which attracts mold growth.

30 Oct, 2017

 

Possibly scale insect or cabbage whitefly.

30 Oct, 2017

 

Hi, looks like Brassica white blister to me, a fungal disease, Derek.

30 Oct, 2017

 

if it is scale or whitefly then an appropriate insecticide suitable for veg will sort it.
if it turns out to be the fungal blister then lift the diseased plants and either burn or put in the household bin not the compost garden bin. There is no control for the amateur gardener.

they do look like white blister to me too especially in the lower right of the leaf.

31 Oct, 2017

 

Thank you,Seaburngirl,, Derekm,, Seargram,,and Bathgate, I do get a lot of white fly around my plot. I did suspect the white fly. Why do they leave the white spot on the leaf is that the honeydew Bathgate mention if the leaf is badly infected I cut it off if not to bad I just rub them off . I have been spraying with soapy water to get rid of them.

Many thanks again John.

1 Nov, 2017

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