UK: HGCA issues new information on pollen beetle monitoring and spray control thresholds
- Credit: Archant
New information on pollen beetle monitoring and spray control thresholds in winter and spring oilseed rape has been issued by HGCA, the cereals and oilseeds division of the Agriculture and Horticulture Development Board.
Research manager Caroline Nicholls said: “HGCA-funded research, conducted by ADAS, has revealed that the plant population makes a large difference to the pollen beetle threshold. Plants in low plant population crops produce more branches and flowers and can tolerate a higher number of pollen beetles.
“Based on experience in recent years, pollen beetles have rarely been numerous enough to warrant treatment.”
“By preventing ‘insurance’ sprays and following resistance management advice, such as not spraying after flowering starts, we should be in a good position to counter the resistance threat, which is now widespread throughout the UK, without compromising control.”
Pollen beetle thresholds should be used in conjunction with best monitoring practice and findings from a second recently completed HGCA project, led by Rothamsted Research, are helping to provide the tools to help focus monitoring efforts.
You may also want to watch:
Over four years, 178 oilseed rape crops were monitored for pollen beetles across the UK using sticky traps and sampling plants along transects to help test a tool that forecasts pollen beetle migration.
“The tool uses local meteorological data to generate a series of maps indicating whether migration has started, the risk of migration starting over the next three days and the predicted completion of migration,” said Miss Nicholls.
- 1 Postman who abandoned 'undriveable' van wins unfair dismissal claim
- 2 Jack Whitehall praises award-winning Suffolk gastropub after visit
- 3 Town face competition from Championship club for Rotherham midfielder Crooks
- 4 A14 and A12 set for major upgrade work
- 5 Former Ipswich Town boss Keane as you've never seen him before
- 6 Caravans pitch up at Felixstowe car park
- 7 Full list: Everyone in Suffolk in the Queen's Birthday Honours 2021
- 8 Coronavirus 'growth rate' rises further in East Anglia
- 9 Glass found in popular paddling pool forcing it to close
- 10 Two men arrested after police uncover cannabis farm
For information on the pollen beetle forecast tool, visit www.hgca.com/pests