Biology Reference
In-Depth Information
Family
MIRIDAE
(capsid bugs or mirid bugs)
Lygocoris pabulinus
(Linnaeus) (
9-10
)
Common green capsid
An often abundant pest of trees, shrubs and herbaceous
plants, including ornamentals such as
Caryopsis,
Chrysanthemum, Clematis, Dahlia
, diviner's sage
(
Salvia divinorum
),
Forsythia
,
Fuchsia
,
Geranium
,
Hydrangea
, morning glory (
Ipomoea
),
Pelargonium
,
rose (
Rosa
) and sunflower (
Helianthus annuus
). Present
throughout Europe.
Very active, soft-bodied bugs, with elongate and partly
hardened fore wings (termed hemelytra), and long,
probing, needle-like mouthparts.
Closterotomus norvegicus
(Gmelin)
syn.
Calocoris norvegicus
(Gmelin)
Potato capsid
A generally common capsid on herbaceous weeds;
occasionally a minor pest of cultivated
Chrysanthemum
and certain other ornamental Asteraceae. Widely
distributed in Europe; also present in Canada.
DESCRIPTION
Adult:
5.0-6.5 mm long; bright green, with a dusky-
yellow pubescence; pronotum lightly punctured and
with moderate callosities; antennae comparatively long.
Egg:
1.3 mm long; banana-shaped, creamy, smooth and
shiny.
Nymph:
light green to bright green; tips of
antennae orange-red.
DESCRIPTION
Adult:
6-8 mm long; hemelytra green, sometimes tinged
with reddish brown; pronotum green and straight sided,
and typically marked with a pair of black dots.
Nymph:
mainly green to yellowish green, with black hairs.
9
LIFE HISTORY
Eggs are laid in late July and August in cracks in woody
or semi-woody stems of various plants. They hatch in
the following May or early June. The nymphs then feed
on the buds, growing points, flowers and foliage of
herbaceous plants, including clover (
Trifolium
), nettle
(
Urtica
) and various members of the family Asteraceae,
including chamomile (
Anthemis
), mayweed
(
Matricaria
) and thistles (
Carduus
and
Cirsium
).
Nymphs reach maturity in late June or July. There is just
one generation annually. Attacks on crops tend to occur
mainly in weedy situations.
DAMAGE
Adults and nymphs produce necrotic spots which
develop into holes; infested young shoots become
distorted and may be killed.
9
Common green capsid (
Lygocoris pabulinus
).
10
10
Common green capsid (
Lygocoris pabulinus
) damage to
leaves of
Prunus
.
Search WWH ::
Custom Search