Biologija i suzbijanje žitne pijavice Oulema melanopus (Coleoptera: Chrysomelidae) / Biology and control of cereal leaf beetle Oulema melanopus (Coleoptera: Chrysomelidae)
2016
Milovac, Željko (Institut za ratarstvo i povrtarstvo, Novi Sad (Srbija)) | Franeta, Filip (Institut za ratarstvo i povrtarstvo, Novi Sad (Srbija))
Small grains are an important part of agricultural production in Serbia and are sown on more than half a million hectares, and are second only to maize. The ceral leaf beetle Oulema melanopus L. (Coleoptera: Chrysomelidae) is one of the most destructive pest of cereals. The percentages of fields treated against this pest can vary from 2% to 28% in Vojvodina. Plants from Poaceae family are the natural hosts of the Cereal leaf beetle, and in agricultural production the highest damages are recorded on wheat, oat and barley, while rye is less affected. Both adults and larvae are harmful, however, larval damage is considered to be more significant. Fourth instar larvae account for more than 70% of total damage done by this pest. Several control strategies against the Cereal leaf beetle can be applied, like the use of tolerant or resistant cultivars/varieties, biological control through the use of natural enemies, and agricultural measures which would negatively influence the survival of this species in the fields. Chemical control is still one of the most used supression methods for the cereal leaf beetle. Adopting chemical control measures is only recommended when the treshhold of 5-10 larvae per square meter is breached. Pyrethroid insecticides showed the highest efficacy and resistance occurence has not been documented.
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