Effects of Insecticides on Strawberry Aphid Chaetosiphon fragaefolii (Cockerell) on Resistant and Susceptible Strawberry Genotypes
Efekti insekticida na jagodinu biljnu vaš, Chaetosiphon fragaefolii (Cockerell) na otpornim i osetljivim genotipovima jagode
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Author
Milenkovic, Slobodan
Marcic, Dejan
Peric, Pantelija
Keywords
Chaetosiphon fragaefoliiStrawberry
Resistance
Dimethoat
Deltamethrin
jagoda
otpornost
dimetoat
deltametrin
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Show full item recordAbstract
Strawberry aphid, Chaetosiphon fragaefolii (Cockerell), is the most important vector of
strawberry virus. Breeding of genotypes resistant to this pest is an important preventive
control measure, which can be compatible with rational insecticide application. The aim
of the paper was to determine effects of dimethoate and deltamethrin on C. fragaefolii
populations reared on two strawberry genotypes different in susceptibility: susceptible
strawberry cultivar Čačanska rana and medium resistant hybrid, zf/1/94/96 (Senga Fructarina
x Del Norte). Lower toxicity of deltamethrin was observed (laboratory assay) as well as
lower biological efficacy of dimethoate at lower concentrations (field trial) for specimens
from C. fragaefolii population reared on susceptible strawberry cultivar Čačanska rana. Biljna vaš jagode, Chaetosiphon fragaefolii (Cockerell), najvažniji je vektor virusa jagode.
Gajenje genotipova jagode otpornih na ovu štetnu vrstu je značajna preventivna mera
zaštite, koja može da bude kompatibilna sa racionalnom primenom insekticida. Cilj rada
je bio da se utvrdi delovanje dimetoata i deltametrina na populacije C. fragaefolii gajene
na dva genotipa jagode različite osetljivosti: osetljiva sorta jagode čačanska rana i srednje
otporni hibrid, zf/1/94/96 (Senga Fructarina x Del Norte). Utvrđena je niža toksičnost deltametrina
(laboratorijski biotest) i manja biološka efikasnost dimetoata pri nižim koncentracijama
(ogled u polju) za jedinke populacije C. fragaefolii gajene na osetljivoj sorti jagode čačanska
rana.