This is an except from a website dealing with plant nutrition...

Magnesium is a critical structural component of the chlorophyll molecule and
is necessary for functioning of plant enzymes to produce carbohydrates,
sugars and fats. It is used for fruit and nut formation and essential for
germination of seeds. Deficient plants appear chlorotic, show yellowing
between veins of older leaves; leaves may droop. Magnesium is leached by
watering and must be supplied when feeding. It can be applied as a foliar
spray to correct deficiencies.

I hope you can find this information helpful...

"Grilled Spam tastes yummi !!" wrote in message
...

"Lee Hall" wrote in message
om...

If your plants are turning a mottled brown and yellow with splotches,
it is probably a blight. Peppers are relatives of the tomato and are
susceptible to the same diseases. If, however, the bottom leaves are
just turning yellow, it is probably simple choriosis (yellowing)
caused by excessive watering.


It's pretty much all the leaves that are turning yellow,
a few with brown splotches....

Overwatering could be an issue as I watered it a little
more than usual during a recent heatwave, which were
promptly followed by a few downpours.

I did some google search, and came up with magnesium,
manganese, and iron as possible minerals pepper plants
could be lacking, but I'm not sure about the symptoms
the lack of these might cause.