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My seedling has brownish leaves! Help!

Gardening Reference » Gardening in 2005
by Lily789 on December 12, 2004 01:55 AM
My lychee (a kind of fruit) seedling that I planted last spring has been fine, except that in the past few weeks, there are patches of brown and orange developing on the leaves. What's wrong? Please check the picture by clicking the link below.

Lychee Seedling

Thanks for any help!

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by Nick F. on December 14, 2004 07:46 PM
Hmmmm...I don't know anything about those in specific. But the brown edges of the leaves looks like either over-watering or under-watering.Both can look pretty similar on the plant itself. But if I were a betting man, I'd say the dead patches are a result of the former.

Hopefully someone else can add something more, but some ideas: Cut back the water, watch out for powdery mildew (in the pic, that white stuff on the edges of the soil has got me concerned) and other fungal issues, and ensure that the location has good air circulation. Treatment with a spray containing Copper Octonoate might also be prudent.

Hope that helps!

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Then it got weird.
by Newt on January 14, 2005 10:56 PM
Hi Lily,

Looks like some type of leaf spot. Take a look at these sites to see if you can id what is going on.

Green scurf, or algal leaf spot - Cephaleuros virescens

Leaf blight - Gleosporium
Look here under 'Synonyms'. Be sure to scroll down to the descriptions of manifestation.

Leaf spot caused by either Pestalotia pauciseta, Botryodiplodia theobromae (now known as Lasiodiplodia theobromae) or Colletotrichum gloeosporioides(a form of anthracnose). I suspect it might be one of the last two as the spotting starts at the tip of the leaf and that seems what is going on with yours. Scroll down here to 'Anthracnose' for a description of the manifestation.

From this site:
Anthracnose (Colletotrictium gloeosporioides Penz.) is a problem on 'Mauritius' lychee fruit.
Hope this was helpful.

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When weeding, the best way to make sure you are removing a weed and not a valuable plant is to pull on it. If it comes out of the ground easily, it is a valuable plant.

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