Form 5a - ICP Forests

I N S E C T S
Agent
group
CONIFERS
Code Class Code Main species Code Affected genus Symptoms
200
210
Acantholyda sp. Pinus Shelter made of silky threads and frass, on the needles,
Brachonyx pineti
Pinus
surrounded Fine spots with by devoured a central hole older in needles the needles and presence
of small holes in the sheaths
Brachyderes suturalis
Pinus
Devoured needles forming a thick saw edge
Diprion pini
Gelechia senticetella
Pinus
Juniperus, Cupressus
Summer defoliations. False caterpillars, greenish with
brown - orange head. Eggs in the needle margins and
pupas in the soil
Silky threads in dry twigs
Defoliators
Lymantria dispar
Lymantria monacha
Bupalus piniarius
Choristoneura
murinana
Cephalcia abietis
Cephalcia lariciphila
Dendrolimus pini
Larix, Picea, Pinus
Pinus
Pinus
Abies
Picea
Larix
Pinus
Devoured needles; caterpillars with long hairs, variable
yellow to black coloured with characteristic double row of
blue and red spots on the back
Eggs disposed in cracks of the bark. Recently born
caterpillars disposed in lines in the trunk. Summer
defoliations.
220
Dioryctria sylvestrella
Pinus
Boring hole with resin crumb on the trunk along with
sawdust and reddish excrement rests
Hylobius abietis Pinus Shallow bites in thin twigs and young pines
Ips acuminatus
Pinus
Star - shaped system of galleries under the bark . Trees
damaged situated in sparce close groups. Death of trees in
summer.
Ips sexdentatus
Pinus
Star - shaped system of galleries under the bark . Trees
damaged situated in close groups. Death of trees in
summer. Adult is bigger than the adult Ips sexdentatus
Stem, branch
& twig borers
(incl. shoot
miners)
Bud boring
insects
230
Ips typographus Picea Bark beetle, borer, killing red spruce, dangerous for whole
forest
Magdalis sp.
Pinus
Punctures in buds and young twigs. Dry and hollow young
shoots
Orthotomicus sp.
Pinus
Long star - shaped system of galleries under the bark
Adults of very small size.
Phaenops cyanea
Pissodes castaneus
Pityogenes
chalcographus
Pityokteines curvidens
Retinia resinella
Semanotus laurasi
Tomicus destruens
Pinus
Pinus
Picea, Larix, Abies,
Pseudotsuga
Abies
Pinus
Juniperus
Pinus
damage of larvae in part of stem with thick bark, galleries of
older larvae with 'cloudy' boring dust; beetle dark blue with
green glow
Very small holes with resin drop resina in buds and shoots.
Galleries under the bark and pupation chambers with thick
wood chips.
Thick and big resin crumb, hollow inside, along with
excrements, in small branches and/or buds
Galleries and pupation chambers in branches and twigs.
Reddish small areas disperse in the crown.
Dry and hollow apical twigs. Resin crumb in trunk with a
hole for entering. Under bark galleries with shape of fish
thorns. Death of the trees in spring.
Rhyacionia buoliana Pinus Hollow buds and young shoots (bayonet shaped shoots),
Rhyacionia duplana
Pinus
along
Hollow
with
buds
resin
and
crumbs.
young shoots (bayonet shaped shoots),
along without resin crumbs.
Fruit boring
insects
240
Dioryctria mendacella
Pissodes validirostris
Pinus
Pinus
Irregular shaped boring holes filled with resin in the fruit
(pine cones). Presence of galleries with excrements and
silky threads.
Round and clean boring holes in the pine cones. Egg -
layings are covered with a dark stopper and disposed in
the pine cone scales
Suking
insects
250
Haematoloma
dorsatum
Leucaspis pini
Matsucoccus sp.
Pinus, Juniperus
Pinus
Pinus
Eggs - laying in shape of a "spit" over grasses. Reddened
needles.
Adults with eliptic white bodies (like white scales stucked to
the needles).
Breakage and formation of scales in stems. Adults with
eliptic sessile bodies under the bark.
Mining
insects
260
Epinotia subsequana
Abies
Brown and curved needle in part of its length, with a boring
hole.
Gallmakers 270
Other insects 290
Table A2-5: Codes for agent group 200 (insects): Conifers
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