GRDC Grains Research Update Rokewood 2018
Presented at:
This page contains update papers presented at the .
Browse all update papers below or click Download PDF.
Use the media tab to view presentation materials from the event such as power points, images or videos and other media.
Presented at
-
Insecticide resistance issues continue to outpace novel control options. • Redlegged earth mite (RLEM): o Resistance in RLEM has been detected for the first time in eastern Australia. o Synthetic pyrethroids (SPs) are completely ineffective against SP-resistant RLEM populations, while some efficacy remains for organophosphates (OPs) against OP-res...
-
In 2017, blackleg leaf infection and resultant crown canker severity was low due to dry conditions in May and June during early seedling growth. Susceptible cultivars still had some level of disease but were well protected by fungicides applied at sowing which were highly effective due to the lower disease pressure. Application of foliar fungicides...
-
Glyphosate resistance has been detected in annual ryegrass and sowthistle. Initial trials suggest significant differences in efficacy between glyphosate products. Treating younger plants at lower temperatures can improve glyphosate efficacy on resistant biotypes. Crop topping with glyphosate is not effective on glyphosate resistant ryegrass....
-
Annual ryegrass has evolved resistance to most post-emergent herbicides in the high rainfall zone (HRZ). Individual pre-emergent herbicides tend to have variable efficacy making mixtures and sequences better. Crops mature later in the HRZ meaning that more than 50% of the annual ryegrass seed can shed prior to harvest. This makes harvest weed seed ...
-
Grass fodders will generally grow more dry matter in a year than legumes and in the vegetative stage their feed quality is equivalent to legumes. Most common are the annual legume fodders (balansa, arrowleaf and persian clover) and they can produce significant amounts of high quality fodder under favourable growing conditions. Perennial fodders, es...
-
• Use appropriate combinations of cultivars and germination dates to ensure crops flower during the optimal period and have accumulated enough dry matter to intercept all incoming radiation by the time of flag leaf emergence. • Cultivars with short, erect flag leaves use radiation more efficiently, and most popular currently available cultivars in ...
-
• Spring-sown canola provides a virus reservoir for Turnip yellows virus (formerly Beet western yellows virus), Cauliflower mosaic virus and Turnip mosaic virus. • There is a high risk of transmission of Turnip yellows virus from spring- to autumn-sown canola under favourable conditions. • There is a need to manage Turnip yellows virus in spring-s...
Was this page helpful?
YOUR FEEDBACK
To protect your privacy, please do not include contact information in your feedback. If you would like
a response, please contact us.