[aperture77]

Ive had 2 successful planting of Duke of York and Coleen potatoes - have been eating them all the month of June, most are nearly dug up now, this is my first time to grow vegetables!.
On my other 2 rows of spuds are Arran Pilot and Roosters, they went in later in may so wont be ready till Aug and I sprayed them with Dithane last Tues and been away at the wend Ive come back to the Arran pilot flattened and leaves on each stalk blackened and wilted away, the roosters are fine, is this blight on the Arran pilot and what should I do, will I go out and spray the roosters with dithane and hope for the best or is this a lost cause if there is blight on the Arran Pilot variety??
Please help!

[aperture77]

Here are some pics I took last nite:






Think the wind had played a part in flattening them also.
Roosters on the left, Arran Pilot on the right

[aperture77]

This was the potatoes last Tues nite 29th June after spraying them with Dithane.

[michael brenock]

this is definitely not potato blight, could be that potatoes have reached maturity as it would be unlikely that a pest or disease hit all the one variety at one time rather than being a gradual thing. maybe potatoes are bigger than you think.
michael brenock horticultural advisor (retired)

[aperture77]

Ah thank you Michael you are great for responding,

yes I briefly thought that as the Arran Pilot have flowered now and they are in the ground 9 weeks, I did dig up 2 stalks and they are egg size so suppose i could leave them in the ground for another 2 weeks, that could make all the difference.


Just like the Coleen and Duke of York below 2 stalks 2 weeks ago:



and 2 weeks later they are huge




so tasty