How to Harvest Lodged Cereal Crops

Jess Sampson

Oct 10, 2022

Mother Nature has thrown Aussie farmers another curveball. With recent strong winds, storms and heavy rain across the east coast, harvest won't come easy this year. 

Recent weather events combined with higher than average expected yields — resulting in heavy heads — means we should be on the lookout for lodging in our cereal crops. 

Lodged cereal crops

Lodged crops can remain wet for long periods of time following rain, heavy dew or fog. This can become the breeding ground for foliar diseases and Fusarium Head Blight (FHB). 

FHB is a fungal disease that can cause yield losses of 20-100%, along with impacts on grain quality. It is generally noticed in the florets or heads of wheat and barley, which can appear to look bleached white instead of yellow or green. Grains can appear chalky and low weight.  

Weather conditions during and after flowering play a huge role in FHB outbreaks. FHB likes warm, wet weather during and after flowering. Spores can be spread by splash droplets or wind, infecting susceptible wheat or barley heads, and can travel long distances. 

Mold growth is also something to pay close attention to in lodged wheat. Under favorable warm and wet conditions saprophytic fungi will readily colonise in wheat heads, resulting in a dark mold forming over the heads. To reduce the risk of mold, try to get the wheat dried down as low as possible prior to storing. 

Lodging can also cause low test weights if the grain is prevented from fully maturing or filling completely and drying naturally in the paddock. This occurs mostly when the grain is rewetted in the paddock after maturity but prior to harvest. When grain is rewetted the germination process begins, thus causing a reduction in test weight.

During a wet season such as this one, it is a good idea to look at pre-harvest options for quicker dry-down. The two main methods used are windrowing or glyphosate application. There are pros and cons to each method, so find what works for you and discuss with your local agronomist. 


Windrowing can speed up crop dry-down, but if adverse weather causes delays, grain in the windrow can be at a higher risk of pre-harvest sprouting. 

Pre-harvest windrowing 



Less susceptible to hail damage

Second pass on the paddock

Faster dry-down compared to straight cutting

Regerm damage if late rain persists

Glyphosate application

Glyphosate application during the hard dough stage can hasten dry-down in wet conditions. However, there is a seven-day pre-harvest interval, so at most you gain a couple of days. Always follow label directions and use a glyphosate that is registered for pre-harvest over the top (OTT) application. 

Pre-harvest glyphosate applications



Fast application

Spray drift potential

Even maturing 

Poor perennial weed control

Good annual weed control

Fast dry-down 

Strategies to make harvest easier despite lodging

Lodging can make harvesting an adventure, but there are a number of things we can do to make harvesting a little easier. 

  • Limit paddock traffic to avoid the wheat sticking to the mud.

  • Harvest in one direction against the grain and, if possible, use crop lifters. 

  • Adjust the reel far enough down to lay the head on the platform. You want to get as low as you can when picking up the wheat to get as much of the plant cut and through the combine as possible.

  • Go slow — the reel should turn just faster than ground speed. Facing the reel forward and down will help to lift a lodged crop. 

  • Don't delay your harvest too long. If there is a break in the weather and the crop is ready, get it off the paddock to reduce possible disease pressures.

There are a number of ways to keep an eye on your crops for disease and lodging, so that you can implement the best practice for your harvest. Consult with your agronomist to ensure you harvest a high yielding, high quality grain. 

Shop for herbicide products

Find the herbicide products you need at FBN Direct®. We have a diverse portfolio to provide product options for growers like you to support plant health.

Copyright © 2021 - 2022 Farmers Business Network Australia Pty Ltd. All rights Reserved. The sprout logo, "FBN", "Farmers Business Network", and "FBN Direct" are registered trademarks or trademarks of Farmer's Business Network, Inc.

FBN Direct products and services and other products distributed by FBN Direct are offered by Farmers Business Network Australia Pty. Ltd. and are available only where Farmers Business Network Australia Pty Ltd. is licensed and where those products are registered for sale or use, if applicable. Nothing contained on this page, including the prices listed should be construed as an offer for sale, or a sale of products. All products and prices are subject to change at any time and without notice. Terms and conditions apply.

ALWAYS READ AND FOLLOW LABEL DIRECTIONS. It is a violation of federal and state/territory law to use any pesticide other than in accordance with its label. The distribution, sale and use of an unregistered chemical product is a violation of federal and/or state/territory law and is strictly prohibited. We do not guarantee the accuracy of any information provided on this page or which is provided by us in any form. It is your responsibility to confirm prior to purchase and use that a product is labeled for your specific purposes, including, but not limited to, your target crop or pest and its compatibility with other products in a tank mix and that the usage of a product is otherwise consistent with federal, state, territory and local laws. We reserve the right to restrict sales on a geographic basis in our sole discretion. You must be authorised to use restricted chemical products under applicable state or territory law. Please consult your applicable state or territory authority for complete rules and regulations on the use of restricted chemical products as some products require specific record-keeping requirements.

All product recommendations and other information provided is for informational purposes only. It is not intended to be a substitute for consulting the product label or for specific agronomic, business,or professional advice. Where specific advice is necessary or appropriate, consult with a qualified advisor. Neither Farmer's Business Network Australia PTY Ltd nor any of its affiliates makes any representations or warranties, express or implied, as to the accuracy or completeness of the statements or any information contained in the material and any liability therefore is expressly disclaimed.

Jess Sampson

Oct 10, 2022

You Need It. We Got It.
Shop online & get crop protection delivered direct.
Get the 2022 Plantings Report
Gain insight with an outlook on Canadian farmers’ planting plans for the year.