Leaves turning yellow and even white...help!!

[Karen]

Hello, I have only been growing for about 5 years and still consider myself a learner. But I have never had this problem before. I must say first that I am a simple grower, choosing easy to grow autoflower. I live in Spain and grow indoors and out in the summer. I never had huge yields or problems, but now I think I might have some kind of infestation or pest.
My 'girls' are now starting to have yellow leaves, that get worse and worse until they are nearly white! I do not think it is a nutrient deficiency as now my 2 new seedlings are immediately showing the same signs!
First 2 pics are current grow and other is my new seedling that is showing signs already.
Any ideas? All help appreciated!
Cheers!

 

[Dagmar]

I've never seen so much damage to such a young, small plant, but it looks like spider mites. They can be almost too small to see without magnification - do you have a jewelers loop or other way to get a good close up look under the leaves? On such a young plant, you haven't put in much time yet - if this is spider mites, toss them out and thoroughly fumigate/treat the grow area.

I've noticed when I grow outdoors, spider mites prefer my cucumber and okra plants, and have never bothered my cannabis plants that grow right beside them. It's on my indoor grow that the little buggers don't have the choice. I only go into my grow area first thing in the morning when I haven't yet been outside, to avoid bringing them in the house on my clothing after working in the vegetable garden.

My sympathies. Good Luck.

 

[Karen]

Thank you for you reply, I really appreciate it!
I know, it is horrible! Sadly I think you are right! :noooo:
I sent the pics to my local grow shop too and they thought that it might be 'red spider insect' (translated from Spanish 5 mins before you responded))
I do not have an actual grow room. They are on the balcony in the day and now the evenings are drawing in, I put them under lights in the spare room until I go to bed.
I cannot fumigate, will a deep clean in all rooms work? I am going to the shop on Monday to get the 'treatment' they have.
Thanks again for your help!

 

[Dagmar]

I don't know how to advise you on cleaning in your situation but if you have a local grow shop they should be able to help advise.