- A leaf spot is a limited,
discoloured,
diseased area of a leaf that is
caused by fungal,
bacterial or
viral plant diseases, or by
injuries from nematodes...
-
specialized mildew remover, or
substances such as
bleach (though they may
discolour the surface).
There are many
species of mold. The
black mold
which grows...
- ring
which may
quickly disappear. May
discolour slightly yellow or
pinkish brown. Gills: White,
sometimes discolouring to
pinkish brown with age. Free and...
-
sometimes used. An
unintended heat source, such as a
coffee cup, can
discolour the
paper and
obscure any printing. A
fingernail rubbed quickly across...
-
damaged skin will try to heal by
forming scar tissue. This is
often discoloured and depigmented. In humans, skin
pigmentation (affected by melanin) varies...
-
introduced to New Zealand. White-tailed
spider bites may
cause a
small red or
discoloured bump,
similar to an
insect bite, that
burns or itches. The
issue of necrosis...
-
whilst the
exterior surface is
lemon yellow to
sulphur yellow and may
discolour brownish with age. It is
covered in fine
powdery or
woolly scales (pruinose...
-
layers of azo dyes
sealed in a
polyester base, the
print will not fade,
discolour, or
deteriorate for an
extended time.
Accelerated aging tests conducted...
-
produces red or gray,
scaly patches of
itchy skin.
Deeper infections may be
discoloured,
ulcerative and purulent. A
Candida yeast infection can also be identified...
-
iodide into
silver bromide in a
condition such that it
would only
slightly discolour when
exposed to light, or "fixed" in a hot
solution of
sodium thiosulphate...
