Late-sown cereal crops at high risk of BYDV in 2023
Late-planted spring crops are at a higher risk of BYDV (Barley Yellow Dwarf Virus) infection this year, as Dr. Louise McNamara, an entomologist in Teagasc Oak Park, explains on this week’s Tillage Edge podcast.
To reduce this risk, she says, target an aphicide application at growth stage 14. Aphid numbers are coming off a low base after the winter and aphids need days with temperatures of 17° degrees for population numbers to double.
A well timed aphid application will be sufficient to reduce BYDV significantly, but this will not completely eliminate symptoms in the field. Listen to the podcast below:
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