Rhinocyllus conicus |
Last updated: 12/06/2024
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(Also known as: Thistle-head weevil) |
The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.
Environmental fate |
Ecotoxicity |
Human health |
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A phytophagous weevil that can be used for the biological control of noxious thistles |
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Musk or nodding thistle (Carduus nutans) but may consume other thistles including native species |
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Rangeland; Pasture |
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The adult is dark brown/black in colour with a short-snout and is around 10mm long. Females lay their eggs close to the the bracts of the thistle flower head. Newly hatched larva burrow into the flower head and feeds on the flower parts and developing seeds. This significantly reduces seed production and can cause severe plant damage. |
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1968, first used for biocontrol in Canada |
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Class: Insecta; Order: Coleoptera; Family: Curculionidae |
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Not applicable |
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Not applicable |
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Not applicable |
EC Regulation 1107/2009 (repealing 91/414) |
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Not applicable |
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Not applicable |
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Not applicable |
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Not applicable |
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No |
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ATAustria |
BEBelgium |
BGBulgaria |
CYCyprus |
CZCzech Republic |
DEGermany |
DKDenmark |
EEEstonia |
ELGreece |
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ESSpain |
FIFinland |
FRFrance |
HRCroatia |
HUHungary |
IEIreland |
ITItaly |
LTLithuania |
LULuxembourg |
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LVLatvia |
MTMalta |
NLNetherlands |
PLPoland |
PTPortugal |
RORomania |
SESweden |
SISlovenia |
SKSlovakia |
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ISIceland |
NONorway |
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Not applicable |
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Yes |
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Herbivore |
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Macro-organism |
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Natural |
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Consumption |
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A native of southern and central Europe, North Africa and western Asia. Now introduced into North America and Canada |
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For commercial purposes it is reared under controlled conditions on musk or nodding thistle (Carduus nutans) |
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Land management |
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Musk or nodding thistle (Carduus nutans) but may consume other thistles including native species |
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Rangeland; Pasture |
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Rhinocyllus conicus Froelich |
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Most countries require a licence to be issued before non-native macro-organisms may be released as biocontrol agents |
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Not applicable |
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Not applicable |
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Not applicable |
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Not applicable |
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Living organism |
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Rhinocyllus conicus |
Praxis |
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Usually supplied as adults. |
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As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. |
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Soil adsorption and mobility |
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None
Terrestrial ecotoxicology |
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Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source No adverse effects expected or identified |
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Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source No adverse effects expected or identified |
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Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source No adverse effects expected or identified |
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Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source No adverse effects expected or identified |
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HUMAN HEALTH AND PROTECTION |
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Not applicable |
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Q3 Q = Miscellaneous data from online sources 3 = Unverified data of known source No adverse effects expected or identified |
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Carcinogen |
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Endocrine disruptor |
XNo, known not to cause a problem |
A0 A = Chromosome aberration (EFSA database) 0 = No data ; B0 B = DNA damage/repair (EFSA database) 0 = No data ; C0 C = Gene mutation (EFSA database) 0 = No data ; D0 D = Genome mutation (EFSA database) 0 = No data ; E3 E = Unspecified genotoxicity type (miscellaneous data source) 3 = Negative |
XNo, known not to cause a problem |
Reproduction / development effects |
Acetyl cholinesterase inhibitor |
Neurotoxicant |
XNo, known not to cause a problem |
XNo, known not to cause a problem |
XNo, known not to cause a problem |
Respiratory tract irritant |
Skin irritant |
Skin sensitiser |
XNo, known not to cause a problem |
XNo, known not to cause a problem |
No data found |
Eye irritant |
Phototoxicant |
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XNo, known not to cause a problem |
No data found |
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No adverse health effects identified |
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No information available |
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Not listed (Not listed) |
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Rhinocyllus conicus |
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Record last updated: |
12/06/2024 |
Contact: |
aeru@herts.ac.uk |
Please cite as: |
Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242 |