Header Image

Helping grow
the country

< Back to Blog
Rural Diary
1 December 2016 External Supplier

Managing foliar diseases in fodder beet

The substantial growth of fodder beet plantings has come with higher incidences of foliar diseases in the popular crop.

The leaves are a valuable protein source when fodder beet is fed to stock. Foliar diseases not only reduce the palatability of the leaves, but will reduce crop yields. Maintaining green leaf retention and quality maximises the protein feed potential of crops.

Escolta®, a new product from Bayer Crop Science this season, is a highly effective fungicide for the control of foliar diseases in fodder and sugar beet crops. A co-formulation of two active ingredients, Escolta controls the most common foliar diseases seen in New Zealand beet crops such as powdery mildew, beet rust, cercospora and ramularia leaf spots. Escolta, through  controlling these diseases, maximises green leaf retention and provides physiological benefits that improve greening and yield.

Foliar diseases in beet crops usually start to appear when, or soon after the crop canopy closes in. The first Escolta application should be applied as soon as any disease is observed in the crop. The best results are seen when Escolta is used as disease first becomes active in the crop and before disease becomes established.

A second application can be applied 3 to 4 weeks later to maintain maximum length of protection. The use rate is 350 mL/ha with a maximum of two applications of Escolta allowed per season. Escolta can be applied as a ground or aerial application.

For ground application a water rate of 200 litres per hectare and for aerial application, 80 litres per hectare are recommended. Ensure good spray coverage of the crop leaves. The withholding period for Escolta is 42 days. Ensure that Escolta treated crops are not fed to stock until 42 days after the last application.

“Trials conducted in New Zealand have demonstrated the effectiveness of Escolta against rust and powdery mildew” says Lovisa Eriksson, Bayer Product Development Manager. “In the trials, two applications gave superior efficacy over a single application” adds Lovisa.

Contact your local PGG Wrightson Technical Field Representative if you need help identifying a foliar disease on your fodder beet crop and finding the most suitable fungicide.

Supplied by Bayer Crop Science

External Supplier

Related Articles

Weed and pest control in beets

01 October 2016

A good fodder beet crop is an excellent source of quality, cost effective dry matter. Protecting your investment in preparing and sowing down the paddock can be done by following a few simple steps.

Multiple application programmes are recommended for both weed and pest control. Plan for one pre-emergence application followed by at least two post-emergence applications if weeds continue to germinate. This will control each strike of emerging weeds and maintain an effective layer of residual herbicide in the soil to help delay the next strike.

Tank mixing of beet selective herbicides is recommended to improve the spectrum of weeds controlled. If an application is delayed by weather or other factors, rates need to be increased.

Key points for successful weed control in beets:

  1. Paddock selection is critical as beet is a high input, high yielding crop. Prior planning and management help minimise the weed seed burden in the soil. Identifying suitable beet paddocks well in advance is important to eliminate difficult weeds prior to sowing. A programmed approach is required to control rhizomatous and stoloniferous rooted plants such as couch, Californian thistle and yarrow.
  2. Apply a pre-emergence treatment after sowing and before the crop or weeds have emerged. For best results, apply to moist soil with rainfall or use overhead irrigation soon after application to incorporate the herbicides into the soil surface.
  3. For post-emergence applications, treatment at the cotyledon stage of the weeds is the most important factor for maintaining effective weed control. Larger weeds become progressively harder to control. Walk paddocks regularly and look closely to check if there has been a recent strike of weeds. For high organic matter soils (over 10 percent OM), use post-emergence treatments only. Start as soon as the crop has reached cotyledon stage and the first strike of weeds are visible. Repeat after each new strike of weeds.
  4. Tank mixes are recommended for broad spectrum weed control for both pre and post-emergence applications.
    Two approaches can be used:
    > A low-dose programme uses lower rates applied at closer intervals (7-10 days) to improve crop tolerance and where the factors mentioned below are not normally an issue. This programme is less common and used more in horticultural situations such as red beet.
    > The most common and recommended programme uses slightly higher rates applied at longer intervals (12-21 days). This helps reduce the number and cost of applications if weather, wind, and timely access to spray equipment is an issue. This programme provides the greatest flexibility with your farming operation.

Selecting Goltix® and Goltix Uno from Adama as your backbone to both programmes, gives you a performance certainty that comes from years of local and global experience and on-going research into the best possible options for protecting fodder beet crops.

To discuss a tailored weed and pest control programme, contact your local PGG Wrightson Technical Field Representative.

Supplied by Adama

Good planning key to success with fodder beet

01 August 2017

Feeding fodder beet to R2 heifers and R2 steers on their sheep and beef property, Philip and Alexander Holt of Napier are into their second season using this crop and are rapt with the results.

The versatility of fodder beet makes it an attractive forage option in many farming systems throughout New Zealand. Predominantly a high yielding feed for wintering dairy cows, farmers such as Philip and Alexander are now successfully using beet to put liveweight gain onto beef cattle. Fodder beet can also play a role in holding body condition of dairy cows on the shoulders of the milking season, and has been used effectively within the beef, sheep, goat and deer industries.

Philip and Alexander feed R2 home breed Angus steers on an 8 ha beet crop and have had good results. Focusing on getting the inputs right for their crop, Philip strongly advocates for making a plan and getting the timings right to get a quality crop. “Don’t cut corners, follow your plan well and focus on using exactly what is required to achieve your targets,” explains Philip.

It all starts with a well prepared and consolidated seedbed. If you can get this right and obtain an even plant establishment, weed control becomes much easier when the beet is at a similar growth stage. Precision sowing their preferred Agricom variety fodder beet at 50 cm row spacing in October 2016, Philip and Alexander have found the crop to have good tolerance in the hot and windy January and February conditions. Yielding approximately 27 T in mid to late May this year, these conditions have been a positive for the pair.

The R2s are all killed off fodder beet and some lines of Angus steers achieved growth rates of above 1.8 kg/head/day last season. Philip and Alexander have a well-planned use of lucerne balage, and as part of their robust planning process, take the time to calculate stock intake and what would be required to achieve their high growth rate targets. “We target the schedule at peak time for better returns” explains Philip. "We feed supplements out in the paddocks versus in the racks as we find this is more efficient and gets an equal diet to more animals.”

During the transition phase Philip and Alexander fed the baleage out in strips on the runoff ‘night’ paddock. Now that the cattle are transitioned they are on the fodder beet paddock all the time, and the baleage is fed out in strips on the grazed fodder beet standing area just before the new daily break of fodder beet is opened. “We keep an eye on feeding habits and condition, and if and when required we will also install basic roughage in holders in the paddock to allow extra ad lib fibre,” explains Philip, “we believe that we get better utilisation of baleage using this method.”

Learnings from last season’s 32 T crop has meant that this season, the brothers take the stock off the paddock in adverse weather to prevent pugging and reduce potential damage to the soil structure. Good planning for fodder beet includes ensuring time to plan paddock crop rotations. Considering these help support the long term use and success of fodder beet crops by minimising the risk of soil born disease build up, paddock contamination from old bulb chips or bolting fodder beet plants that could set viable seed.

In many cases, a rotation of four or more years is advised and if the rotation length is shorter between crops, care must be taken to ensure the roguing of bolting beet plants. For the last few years the true effect of bolters has been overlooked by many in the sector and their relevancy underestimated. If bolting plants are not removed or destroyed before they complete their life cycle, they can produce up to 6,000 seeds per plant, which can fall to the ground and potentially remain viable over several years. There is the risk that bad cases prevent future fodder beet plantings in those effected paddocks as re-seeded beet establishes at very high populations, and herbicides used in your sown beet crop does not control re-seeded beet, resulting in severe suppression of yield.

For more information on integrating fodder beet in your system, talk to your local PGG Wrightson representative.

Supplied by Agricom

Good planning key to success with fodder beet

01 August 2017

The results that Phil Chapman of South Canterbury has had feeding beet to R1s and R2s on his sheep and beef property prove that effective planning is key to a successful fodder beet crop.

The versatility of fodder beet makes it an attractive forage option in many farming systems throughout New Zealand. Predominantly a high yielding feed for wintering dairy cows, farmers like Phil are now successfully using beet to put liveweight gain onto cattle. Fodder beet can also play a role in holding body condition of dairy cows on the shoulders of the milking season, and has been used effectively within the beef, sheep, goat and deer industries.

Phil Chapman has a 530 ha property in Kakahu between Geraldine and Fairlie. Planting 7 ha of dryland fodder beet, Phil focuses on getting the inputs right and follows a fertiliser recommendation plan set with his PGG Wrightson Technical Field Representative Matt Cooper. “Stick to the plan when transitioning as well, if you get that right it is simple for the rest of the winter,” explains Phil.

It all starts with a well prepared and consolidated seedbed. If you can get this right and obtain an even plant establishment, weed control becomes much easier when the beet is at a similar growth stage.

Spring can be a tight time feed wise for Phil, so the ability to keep animals on beet longer in the spring to let sufficient grass covers build is great. “The flexibility of grazing is fantastic,” explains Phil “I love fodder beet for the extra yield I get in the same area versus kale. It is nearly double, and once transitioned it is really easy to feed out.”

Phil feeds a good quality supplement with his fodder beet, particularly to the yearlings as they need to grow muscle and need a good protein source to achieve this. Cattle from last year fed fodder beet went on the crop at 260 kg liveweight and achieved gains of 1.2 kg/head/day, coming off the beet at 405 kg liveweight. Good planning for fodder beet includes ensuring time to plan paddock crop rotations. Considering these help support the long term use and success of fodder beet crops by minimising the risk of soil born disease build up, paddock contamination from old bulb chips or bolting fodder beet plants that could set viable seed.

In many cases a rotation of four or more years is advised and if the rotation length is shorter between crops, care must be taken to ensure the roguing of bolting beet plants. For the last few years, the true effect of bolters has been overlooked by many in the sector and their relevancy underestimated.

If bolting plants are not removed or destroyed before they complete their life cycle, they can produce up to 6,000 seeds per plant, which can fall to the ground and potentially remain viable over several years. There is the risk that bad cases prevent future fodder beet plantings in those effected paddocks as re-seeded beet establishes at very high populations, and herbicides used in your sown beet crop does not control re-seeded beet, resulting in severe suppression of yield.

As per recommended crop husbandry, Phil does not double crop his fodder beet. Following his fodder beet, Phil is planning on sowing a Relish red clover stand so his weed control programme is especially important.

For more information on integrating fodder beet in your system, talk to your local PGG Wrightson representative.

Supplied by Agricom

Share this page