I have bought this Dhalia from a local flowershop it was blooming with good flowers and they last for about 1 week, after the dhalia lost all its flowers. After some time if had some white mist over its flowers, I have done somw reserach and I think it is Oidia. I have spayed the leaves with a solution od sodium bicarbonate and also with a solution of tabacco. Anyone has any idea of a house solution to this? where I live we do not have many industrial products to deal with it
by beautifulsoup742
6 Comments
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Spider mites. Thrips. Possibly more
It looks like spider mites to me. Usually you can see the mites if you look hard for them, so if you can’t, its probably something else. My dahlia flowers get thrips but they don’t bother the plant itself so I dont think its that.
Lack of color in the leaves suggests spider mites. They suck out the chlorophyll.
Thrips at least, can see black dots which are their poop. Possibly apider mites too.
This happened to my [dahlias](https://www.reddit.com/r/dahlias/s/S9GMHPsa6d) last summer and it turned out to be spider mites.
Check the under side of the leaves, they’re small dots that look like dirt. I sprayed the leaves with rubbing alcohol and wiped them down with an old makeup brush. It seemed to help as the greyness stopped spreading.