Whats wrong with my cucumber plants?
Question:i have 3 burpee burpless plants and some of the leaves are turning white. is it a fungus? can my other vegitables get it from them? what can i do? my garden used to be the manure pile from my horses and before we moved here. we removed all the manure and tilled it and added amonium sulfate to help nutralize some of the nitrogen. it is fenced off from the horses and has been my garden for 3 yrs now without any problems. i also added soil pep to it last year, and i water with soaker hoses. any help would be great. also, i live in northern utah, just south of slc
Answers:
Cucumbers are prone to Powdery Mildew, and Downey Mildew . If you can do anything to improve airflow, do so . Water them in the morning, at the base of the plant , keeping the leaves as dry as possible .Ironically drought stress can lead to mildew, so check to see if it's enough water. Fertilize them, & they might out grow it . Insects can spread it, so check for aphids .There is still time to plant new ones from seed. Get a variety (s) that is resistant to mildew . You can spray the infected plants with a baking soda/water/ dish soap mix to stop it ( 1TBS each/gal water) . This prevents any new infection. It won't kill what's already there. When you have some full size new growth, without mildew, remove all the infected leaves .
if your watering at night or late in the day, stop. water is on the leaves and not evaporating off and this causes mold to grow on the leaves.
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