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Attractant for the sugar‐beet weevil Conorrhynchus (Cleonus) mendicus (Col.: Curculionidae)
Author(s) -
Tóth M.,
Furlan L.,
Campagna G.
Publication year - 2007
Publication title -
journal of applied entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0931-2048
DOI - 10.1111/j.1439-0418.2007.01215.x
Subject(s) - curculionidae , biology , weevil , acetaldehyde , botany , pest analysis , attraction , sugar , horticulture , toxicology , zoology , ethanol , food science , biochemistry , linguistics , philosophy
Traps baited with a 1 : 1 : 1 mixture of Grandlure I [ cis ‐1‐methyl‐2‐(1‐methylenethenyl)‐cyclobutaneethanol], Grandlure II [( Z )‐2‐ochtoden‐1‐ol; ( Z )‐2‐(3,3‐dimethylcyclohexylidene)ethanol] and Grandlure III–IV [( Z )‐ and ( E )‐2‐ochtodenal; ( Z )‐ and ( E )‐(3,3‐dimethyl)cyclohexylidene)acetaldehyde] caught significantly more Conorrhynchus (Cleonus) mendicus Germar (Col.: Curculionidae) weevils than traps without bait. Later tests revealed that only Grandlure III–IV was responsible for attractivity. Both sexes were attracted according to a random sample of captures. C. mendicus appeared to be very similar in its responses to the synthetic aggregation attractant as the closely related Bothynoderes (Cleonus) punctiventris (Germar), in which species, the attraction to Grandluree III–IV has recently been published. Doses from 500 to 5000 μ g of Grandlure III–IV on rubber dispensers performed satisfactorily in monitoring trials and can be recommended for use in practical trapping applications for C. mendicus .