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Yellowing and spots on my hydroponic rex lettuce

Lettuce    western MA/ south windsor CT

We're growing rex butterhead lettuce in a NFT hydroponic system inside under lights. We've been battling potato aphids w/ Nuke em a omri listed food grade insecticide that uses citric acid and yeast . we're now seeing necrotic spots aa well as yellowing of the leaves the last few days. I've...

Asked by: Tony (8 points)   Posted:November 24, 2014

2 answers    2550 views

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How to thin seedlings

Lettuce    NY

Hi everybody. I am new to gardening and growing vegetables. I would like to know how to thin my seedlings. I am growing lettuce, green beans and peas and I planted 3-4 seeds per little hole. I think most have all of the plants growing and I need to know when and how I should thin them - should I...

Asked by: Jennifer Casey (2 points)   Posted:April 16, 2013

3 answers    5836 views

Do you notice the cut on the leafs of lettuce
About lettuce leafs


Hi, I want to know why there is a cut on the leafs of the lettuce. Is it infected by any insects. How can I prevent this. Kindly help me. Thanking you

Asked by: Gangadhar Atthaluri (1 point)   Posted:January 22, 2016

1 answer    1590 views

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Lettuce seed


Four days back I had seed the lettuce out side in a shade and the medium used is coco peat. I watered the seed by spraying thrice a day, after three days when I dig to see the seed I don't find any seed. As it is my first practice of seeding the lettuce. Can any one suggest how exactly to seed.

Asked by: Gangadhar Atthaluri (1 point)   Posted:January 10, 2016

2 answers    1323 views

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Lettuce seedlings

Lettuce    None Given

This is my third failure with lettuce. I always face this problem when growing lettuce. They are very delicate, I even water them with a light spray but they still break during watering. What's the best way to grow them? Thanks

Asked by: reem (9 points)   Posted:October 10, 2014

2 answers    2484 views

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Successive plantings of lettuce

Lettuce    CO

I am growing up some lettuce plants and I would quite like to have a supply of it over spring and into summer if I can. How often do I need to sow seeds? Every two weeks seems like the recommended but this seems very long for only a small amount of lettuce. There is only me and my husband so I...

Asked by: Becca Harman (1 point)   Posted:April 4, 2013

2 answers    2939 views

Here is another one starting the symptom in the border of some leaves in the low and right part of the image.
Damaged lettuce

Lettuce    ecuador

I found this symptoms on lettuce leaves both young and old ones, are starting to become necrotic with a grey/brownish color, as if they've been burned and turned to ashes. The whole area have this symptom. I think this could be some kind of toxicity (maybe ammonia?) but not sure. It is causing...

Asked by: Carlos Hidalgo (1 point)   Posted:August 9, 2016

0 answers    823 views

different angle of iceberg lettuce plants
Iceberg Lettuce red instead of green

Lettuce    Boston, Massachusetts

these are my iceberg lettuce plants 3 have a red thing going on and 2 look green but one has a tear up one of the leaves - I myself am pretty green (new) to gardening and its my 1st attempt at lettuce so I am truly clueless

Asked by: adrianne (3 points)   Posted:May 10, 2017

1 answer    1716 views

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Why are my lettuce seedlings "leggy"?

Lettuce    NY

I started lettuce seedlings about 14 or 15 days ago. I planted them in a seed starting mix in flat trays by planting 3 or 4 seeds together in one hole. I positioned the trays in the bright test window in my house but the seedlings have gone all straggly, or "leggy". and are too long to support...

Asked by: Jennifer Casey (2 points)   Posted:April 17, 2013

5 answers    27773 views