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[Jay Cutts <orders@cuttsreviews.com>]

Does anyone have any ideas on why the leaves of a tree would become 
paler in the sun than they are in the shade?

I have two small pawpaw's. One is under shade cloth and gets no direct 
sun. It has dark green leaves. The other is not covered and gets full 
sun about half the day. It has very pale leaves. I've seen this a number 
of times with pawpaws. In the shade the leaves are dark green. In the 
sun, they are pale.

We're in New Mexico at about 5500 feet.

For a while I was treating the pale plant as chlorotic (which is how it 
looks) and applying iron as a foliar spray and poured on the ground 
around the roots. This didn't help at all. Then I realized that there 
might be a different cause.

Normally, I'd expect a plant in the shade to be paler than one in the sun.

Any ideas?

Regards,

Jay

Jay Cutts
Director, Cutts Graduate Reviews
Lead Author, Barron's MCAT Prep Book
Lead Author, Barron's LSAT Prep Book (2013)
(505) 281-0684
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