Powdery mildew cures??
woohooman San Diego CA zone 10a
11 years ago
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feijoas
11 years agoKimmsr
11 years agoRelated Discussions
Anyone use GreenCure for powdery mildew?
Comments (0)I just opened a jar of it, and it's not a powder; it's solid. I had to dig the scoop out of the contents with a strong knife. I'm wondering if I got a bad batch or whether, in fact, it is a solid (like Crisco or wax kind of) substance. Thanks....See MoreShould I spray bands
Comments (17)Powdery mildew, which could easily be induced by keeping the plants too dry. Spray if it makes you feel better but be aware that sprays can easily scorch and burn foliage when plants experience water shortage, even from a temperature spike on a very hot day. I don't spray for mildew, even on seedlings or newly propagated plants. That light of an infection won't seriously damage the plants. Being fried by a heat spike or intense sun after being sprayed can outright kill them in this climate. As temperatures rise and humidity falls, the mildew will clear. Those conditions don't support that fungal growth, unless the plants are kept in unsuitable conditions (lack of air flow, cold pooling, too high humidity from lack of air flow or kept far to dry). Kim...See MoreIs this powdery mildew on mango leaves?
Comments (2)I get powdery mildew on my mango trees mostly in the winter during bloom set. Its hard to tell from your picture but here's a picture of mine on some of the blooms. I believe "sulphur" is the treatment? Check with your local fruit nursery and ask what they suggest you use...Good luck!...See MoreHow contagious is powdery mildew?
Comments (7)There are about a bazillion different strains of powdery mildew but they tend to be rather plant specific. So the powdery mildew on your roses (Sphaerotheca pannosa var. rosae) is not the same sort of powdery mildew that affects cucurbits (squashes, melons, cucumbers, etc. (Podosphaera xanthii and Erysiphe cichoracearum). I would not be concerned about one plant affecting the other, although the melons and cukes can certainly pass on their type of PM to any of their cousins :-) Spraying preventatively is the ONLY way to control PM. If you wait until you see signs of it before spraying, it is already well established. Milk, baking soda solution, neem or other horticultural oil or most other prepared spray fungicides (e.g. Actinovate) should help to keep things under control. I will say that cucurbits developing PM, especially later in the season, is almost a given - they are extremely prone to this pathogen....See Moregardengal48 (PNW Z8/9)
11 years agowoohooman San Diego CA zone 10a
11 years agogardengal48 (PNW Z8/9)
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