Please help! 2 weeks old and sign of problems again!

mr.homola · #1 05-10-2008, 06:49 AM

hi there.
could anyone help me please. These plants are 16 days old. they looked ok till now, maybe they are little bit too green, which is dificult to see from photos. But 2 days ago they developed a few small spots and today it got worse, plus bottom leaves are turning yelow. On one of the plants the leaves are curling little bit upwards. I've used little bit of nutes yesterday, one third of recomended ammount, some 8-2-6 mix and I am using 6.5 ph water for watering and I am growing in soil. Any ideas?
thanks for reply!

mr.homola · #2 05-10-2008, 07:04 AM

just to add some info. It is a worm growdrobe, about 29C and it's painted white. Air flow provided and light is suplied by 400W MH lamp.

It's 5 o'clock somewhere · #3 05-10-2008, 07:22 AM

To be honest they look fine. People worry to much about the leaves yellowing. If I were you I'd start reading the FAQ on the link at the top of the page. I have several charts in my thread on how to diagnoise sick plants. If you want to see what plants can look like and come back to be a great producing plant click the link in my signiture.

mr.homola · #4 05-10-2008, 07:42 AM

well, maybe I allready read too much

that's why I am worried. Yellowing plants wouldn't bother me, but those spots are alarming. and also the speed they appeared. now I dont know if I should rise the amount of nutes or wait with them for bit longer. Here's couple more detailed pictures.See, this is my second growth and the first one ended up very badly. plants just died. I didn't have a ph metr then and by the time I've got it they were yelow as bananas. Nute lock. But this is diferent.

It's 5 o'clock somewhere · #5 05-10-2008, 07:59 AM

How do you water them? It looks like you might have splashed water with nutes in it on the lower leaves when you watered them. The water can turn into a magnifying glass with the lights on that can burn your plant. That's why people don't folir feed when the lights are on. The leaves will never heal, you should look for new problems in your new growth. When the leaves have been sucked almost dry pull them off....

mr.homola · #6 05-10-2008, 08:07 AM

I was thinking the same. I might happened. But when it comes with those yelow leaves I started to be worried and I thought I'll ask for help. I use 24/7 lights so i can't water them at dark shal I give them bit of a darkness every day? Could it be heat stress as I have quite a high temperature inside. but I thought that it would show on top leaves.

It's 5 o'clock somewhere · #7 05-10-2008, 08:18 AM

Yellow is not heat stress. The leaves will curl down at the tip and they will shoot straight up and fold. They are trying to reduce the amount of surface area exposed to the heat source. Yellowing spots come from spider mites, nutes, or watering. When the whole leaf turns yellow it can be lack of N or to much water. You will get the hang of this fairly quickly. Once I understood the importance of phing my water I saved my plants and will be harvesting one in a week. They have come along way. I've always done landscaping as a hobby but that doesn't make me a gardener. Keep reading, you can't read to much and don't over react to a problem. When in doubt flush it out.... Yes they are the same plants in the last pic as the first three...

mr.homola · #8 05-10-2008, 08:23 AM

well, thanks mate. I'll see how it goes. Ph is corect 6.5, and it has got nutes just once in it short life, so I wont panic and I wont flush. I'll give them nutes in next couple of days and see how it goes. I'll keep posting.

mr.homola · #9 05-10-2008, 08:42 AM

I just checked the plants again and I am sure it's not a spill on leaves. I am usually careful with that i just spilled little bit last time but I know wher. And after I checked i know that those spots are on diferent places. Also, they are quite grey in the middle and on the edges of some of thoe affected leaves green tissue is dry.

It's 5 o'clock somewhere · #10 05-10-2008, 08:47 AM

The leaves that are already damaged will continue to get worse til they get to the point you should pull them. If it bothers you pull them now. New problems will show up in your new growth.