Sunday 27 May 2012
Headlines
Did you find this story interesting? (0) (0)
20/05/2006
Sugar beet weed control pays off in following crops
Controlling potato volunteers in sugar beet will deliver long-term benefits across the whole rotation as well as immediate foliage kill and tuber production suppression.
Sugar beet is highly susceptible to competition, particularly from aggressive and strongly growing potato volunteers. Heavy yield reductions are common. But daughter tubers from surviving treated tubers will pose problems in later rotations. They can reduce yield and quality in future potatoes. They are also a source of contamination by pests and diseases including potato cyst eelworm, late blight, powdery scab, silver and black scurf and black leg.
“Percentage control of volunteer potato foliage and tuber production suppression is only part of the story when it comes to assessing the best herbicide for the job,” says Martin Lainsbury, a principal crop researcher for The Arable Group, based at Morley, Norfolk.
“Trials in 2004 with a range of herbicide combinations showed conclusively that the addition of DowShield (clopyralid) to Betanal Flow (phenmedipham) and Nortron Flo (ethofumesate) gave the highest reduction of daughter tubers and the best foliage knock back, as well as recording the highest yield gain.
Mr Lainsbury then took any daughter tubers left from all the treatments and grew them on to assess their vigour.
The results were conclusive. None of the tubers collected from treatments that contained DowShield grew at all. By comparison tubers from alternative treatments without DowShield grew away to form large potatoes with new daughter tubers. The trial was conducted with the vigorous maincrop variety Nadine.
“A total of 1.0 l/ha of DowShield provides a good kill of volunteer potatoes as well as reducing yield and viability of daughter tubers. As potato emergence can be protracted, we recommend at least two applications 10-14 days apart for best results. First applications should be made when the most forward tubers have 10 cm of leaf growth,” advises Mr Lainsbury.
Sugar beet is highly susceptible to competition, particularly from aggressive and strongly growing potato volunteers. Heavy yield reductions are common. But daughter tubers from surviving treated tubers will pose problems in later rotations. They can reduce yield and quality in future potatoes. They are also a source of contamination by pests and diseases including potato cyst eelworm, late blight, powdery scab, silver and black scurf and black leg.
“Percentage control of volunteer potato foliage and tuber production suppression is only part of the story when it comes to assessing the best herbicide for the job,” says Martin Lainsbury, a principal crop researcher for The Arable Group, based at Morley, Norfolk.
“Trials in 2004 with a range of herbicide combinations showed conclusively that the addition of DowShield (clopyralid) to Betanal Flow (phenmedipham) and Nortron Flo (ethofumesate) gave the highest reduction of daughter tubers and the best foliage knock back, as well as recording the highest yield gain.
Mr Lainsbury then took any daughter tubers left from all the treatments and grew them on to assess their vigour.
The results were conclusive. None of the tubers collected from treatments that contained DowShield grew at all. By comparison tubers from alternative treatments without DowShield grew away to form large potatoes with new daughter tubers. The trial was conducted with the vigorous maincrop variety Nadine.
“A total of 1.0 l/ha of DowShield provides a good kill of volunteer potatoes as well as reducing yield and viability of daughter tubers. As potato emergence can be protracted, we recommend at least two applications 10-14 days apart for best results. First applications should be made when the most forward tubers have 10 cm of leaf growth,” advises Mr Lainsbury.
No Comments
Nobody has posted any comments on this story.
|
Farming items for Sale
|
Case Quadtrac STX 375 - York(GBP 51950)
Deutz Fahr M625 - Cleveland
(Price on Application)
(Price on Application)
Case IH 5140 - Chippenham(GBP 8340)
John Deere 6420S Autoquad - Biddenden(GBP 24000)
John Deere - 6630P TRACTOR 2008 - Norwich(GBP 36250)
Related News
Targeted weed control needed in sugar beet - 01 Mar 2007Weed control should be prioritised early in sugar beet, with a view to keeping the crop weed-free until the 6 to 8 leaf stage, thereby preventing comp...
Sugar Beet Weed control in dry conditions - 03 Jun 2010Up until the end of May the dry soil conditions and cool weather across sugar beet growing areas was adversely affecting crop emergence and making her...
Sugar beet crops reap rewards of green leaf retention - 28 Sep 2006Sugar beet growers who made two fungicide applications over the summer could be set to reap the rewards this year, according to Syngenta Technical Man...
Keeping the sugar beet crop greener for longer - 09 Jul 2010With many sugar beet crops planted later than normal and a longer period until harvest, it will be even more important this year to keep the canopy gr...
Beet growers warned to be on guard for sugar beet mildew - 22 Jul 2004Weather conditions are ideal for mildew and rust to threaten sugar beet yields, warns Dow AgroSciences. Sugar beet growers across the UK are being ...
Selectivity in weed control for row crops - 29 Dec 2010Selectivity through equipment design was a logical response to some selective post-em herbicides for weed control in minor crops, and especially row c...
Sugar beet seed treatment - The next generation - 24 May 2004Poncho Beta, the new sugar beet seed treatment from Bayer CropScience, has gained regulatory approval in time for growers to order 2005 seed treated w...
NFU Sugar to share reform agenda at beet UK - 14 Oct 2005The NFU is encouraging sugar beet growers to attend one of three Beet UK seminars to be held on Wednesday, October 19. NFU sugar board chairman Mik...
First Pernilla sugar beet to be lifted - 18 Oct 2005Spilling over grower David Hill's concrete pad is the first commercial crop to be lifted in the UK of Nickerson's sugar beet, Pernilla. The cr...
NFU reaches deal on sugar beet for bioethanol - 21 Dec 2005The NFU has reached agreement with British Sugar over the supply of sugar beet for bioethanol production, guaranteeing growers an outlet for surplus p...
