Hello, suffering powdery mildew on my butternut squash and my courgettes

Butternut squash is bein grown in autopots and Courgettes in pebbles with drippers



Help as they look terrible, BNS are yellowing n leaves dying and the Courgettes leaves are all white and its affecting the other ones now

Cutting away most affected parts and spraying with sb plant invigorator will help....
Click to view attachment

good luck,

AT

i had it with my first 2 weed grows dev and tbh once it takes hold you'll be lucky to get rid.

it was poor extraction and external intake in winter that started it for me

i tried a couple of diff things and they didnt work at all, then it spreads so fast its unreal
feel sorry for ya mate.

it's a fukin nightmare dude, i wish ya all the best man

tcc

2 Years ago I fought a long and hard battle wit a powdery mildew infection on two beautiful blueberry girls in full flower. I know how nasty this shit is! Like the previous poster says you'll do well to gid rid of it. The best method in my experience is to use quite a strong Bicarb of soda in warm water solution as a folar spray. Youll need t leave it on the plants for a good few hours. The bicarb activley breaks down the cell walls of the mildew, stopping it from reproducing and spreading. A good long course of this method combined with foliar sprays of Citrofresh will control and rid the problem with time.

Youll need to mess around with the concentration of the bicarb / water solution to find something that gives the disired effect without damaging your plants. Always remember to wash the bicarb solution off plants via a water foliar spray, never just leave it on.

Hope this helps, i found this information out waty back when by sifting through various information sources on the internet. Good luck m8, you'll need it!!!!

I use AN Protector - works really well on PM, but you can also use DM's Zone + Penetrator (expensive for edibles though).

Alternatively a milk and water solution is apparently basic enough to kill the PM too. I can't remember the ratio...1:5 I think, but google milk and PM and you should get a result.

couple of sulphur pot treatments and proper extraction upgrade solved my powdery mildew issues.

Proper extraction not an issue the greenhouse i,m growing in if 40ft x 120ft with full lenght roof vent, air movers and doors open all day.

After looking long and hard i found a product called DA Orange Stuff, i cut off the majority of affected leaves and have foliar treated, lookin better but i also treated all the new plants and they look 100 times better, fingers crossed this stuff works and its organic


Havent posted a link but this stuff looks too good to be true!

Made from d'limonene (oil of an orange), ‘da Orange Stuff is an extract derived from the seeds and peel of oranges. It is an emulsifier containing no synthetic chemicals.

‘da Orange Stuff is 100% environmentally friendly, biodegradable, non-toxic and allergy free.

There are many uses for ‘da Orange Stuff... stain remover, cleaner / degreaser, deodorizer, kills and repels insect.

# Organic fungicide.
# Combat powdery mildew.
# Dissolves a protective layer of wax from the exoskeletons of insects causing them to suffocate and die.
# Removes aphids, gnats, spider mites and white flies.
# Provides residual action weeks after application.
# Natural cleaner and deodorizer.
# Compatible with all quality brand name nutrients.

hiya devil and all

it's our shite summer this year in britain. i have courgettes growing outdoors in pots. 2 defenders, 2 yellow, 3 napoli............ they were all fine from may until the rain started. by the end of june the powdery mildew had destroyed the defenders, then moved onto the napoli....... and now sadly the 2 yellows. i've tried spraying with milk mixture and with baking soda mix........ but there really isn't a chance. as soon as i spray it starts raining again and so goes the spray.

it is discouraging. only thing in my garden flourishing right now, besides the slugs, is the new zealand spinach, which isn't a real spinach but seems to like swamp life.