My dahlias are dying

Joined
Jan 29, 2016
Messages
1
Reaction score
0
Country
Australia
I have some dahlias growing in a large pot with marigolds. For the past couple of weeks they have been getting yellowy grey leaves. There is some new growth but it goes grey quite quickly. When I water them the water runs out very quickly. The soil seems quite moist though. I've cut them back as they die off. Are they just drying out in our hot Summer or is it something else? I've attached some photos so you can see what they look like.
 

Attachments

  • IMG_6603.JPG
    IMG_6603.JPG
    139.4 KB · Views: 787
Joined
Feb 2, 2014
Messages
11,476
Reaction score
5,580
Location
La Porte Texas
Hardiness Zone
8b
Country
United States
I have some dahlias growing in a large pot with marigolds. For the past couple of weeks they have been getting yellowy grey leaves. There is some new growth but it goes grey quite quickly. When I water them the water runs out very quickly. The soil seems quite moist though. I've cut them back as they die off. Are they just drying out in our hot Summer or is it something else? I've attached some photos so you can see what they look like.
Looks like spider mites to me. In fact you can see what looks like a web in the picture
 
Joined
Mar 27, 2012
Messages
4,180
Reaction score
2,714
Hardiness Zone
9a
Country
United Kingdom
Welcome to the forum @Lotus1023 :)

I think Chuck is probably right, it looks like spider mites. You should cut back all affected areas, and be careful when you dispose of the cuttings so that the mites don't spread to other plants. Neem oil is a good treatment too.
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Similar Threads

Dying Hibiscus. Scatched away bark and still green 6
Morning glories dying 3
Powdery mildew on Dahlias 9
My Dahlias 2018 85
Advice on Dahlias. 5
Darling dahlias .. 74
Slugs and Snails and Dahlias 1
Staking Dahlias 5

Members online

Forum statistics

Threads
26,589
Messages
256,652
Members
13,263
Latest member
ProNailComplex

Latest Threads

Top