Recent rains have been very welcome and helped all crops to develop. Someland had laid dry from drilling until these rains and beet here are nowemerging well. Where odd beet have now emerged between alreadywell-established plants then they are unlikely to amount to much in terms of yieldas neighbouring plants will crowd them out. Beet just emerging in largerareas will however have the opportunity to develop evenly and will produceharvestable roots.
Late emerging beet following the recent rain
Inother areas where seedbeds were kinder and which have received earlier rains,the crop is moving on at pace with the most forward crops holding handsacross the rows at the beginning of thisweek.
Aphidtrapping via the BBRO network of water traps is now underway and M.persicae andM.euphorbiae can be found in all factory areas. The current hotspot seemsto be at Fulbourn, Cambridgeshire as we have seen in previous years.
Please monitor crops for aphids and feedback any information. 96% of the cropis protected (and working well) but remember there are no approved foliarinsecticides for M. persicae control or any current EAMUs in place. Thelatest resistance testing shows 94% of M. persicae contained MACE and/or thesuper KDR mechanism.
Thrips and Leaf miners
Several reports of thrip damage have been reported to the BBRO Plant Clinicthis week. However, the damage has only been seen in untreatedcrops. Similarly, leaf miner eggs continue to be found, but little miningactivity has been observed unless in unprotected crops, or on weed beet.
The first signs of downy mildew have been reported in Lincolnshire and Norfolkthis week. So far, it does not seem to be as extensive as 2013 andweather will be a factor. The BBRO has just started a new project lookingat downy mildew and strategies for its control, particularly as this diseasecan have an impact of root growth, secondary infection with root rots and thereforesubsequent storage. We will report on progress in the future.