9
Nov 2021

PepMV Update

PepMV Update

Summer key

 

For tomato growers that have been infected with the Pepino Mosaic Virus (PepMV) the next three to four months will be a key period to observe the effects during high light levels and naturally increasing temperature.  Recently I was fortunate to be part of a meeting with experienced growers and virus experts in England, I was interested to learn how different factors, such as age and variety of crop, will affect production and fruit quality.

 

For plants already infected and under a high fruit load it will be important to observe how they cope with several days of bad weather or intense temperatures.    I am interested to find out if normal whitefly levels make it increasingly more challenging to maintain vigour while the plant has PepMV.  On a recent visit to a site, that was identified in autumn as having PepMV, the crop was still producing with minimal symptoms, the leaves on the plants had less curling compared to the middle of the winter.  This is a cherry crop so the actual weight on the plant from the fruit is much lower than a standard large round.

 

Information collected and shared by growers will be the best way to understand the impacts from the virus. I hope from gathering this information we would, as an industry, plot a strategy for best practice to combat PepMV.  If we don’t document the actual physical impacts then it will make it difficult to provide the best possible decisions for the entire commercial tomato growing industry. 

 

The main message I ‘took home’ from the video meeting, with the overseas experts, is inoculation strains were the most effective way to mitigate the negative impacts from the virus.  Even though the English growers were weary when the inoculation was introduced, as it was unknown how it would react (or possibly mutate), it proved to be both effective and not have adverse effects.  This does not mean the exact same scenario wouldn’t occur here but this is basis for why I believe the sooner we work alongside government agencies and use quarantine facilities to start carrying out tests, the sooner we could have a safe option available if or when we might require it.  To do nothing is simply to do nothing and, in my view, would be a mistake that may come back to bite our growers in the backside.  Even if it is proven we will not require inoculation or the inoculation strain could pose a risk if released, I would gladly support industry funding this process.

 

With new crops about to be planted please make sure you have a deep clean between crops.  I suggest products such as Virkon and Hydrogen Peroxide.  Cleaning foams would also be useful.  If you can have your greenhouse empty for three weeks and remove all of the organic material from your greenhouse you may have a chance of eliminating the issue naturally.  This will not be practical for most operations that work on short crop turn arounds.

 

 

 Article written and compiled by Stefan Vogrincic

All Article’s checked and edited by Marie Vogrincic

I appreciate your comments.  Please feel free to comment on the grower2grower Facebook page:

https://www.facebook.com/StefanGrower2grower/

CLASSIFIED

Subscribe to our E-Zine

Sign up here to subscribe to the Grower2grower Ezine. Every two weeks you will receive new articles, specific to the protected cropping industry, informing you of industry news and events straight to your inbox.

More

From This Category

To truss arch or not to truss arch?
May 7, 2024
To truss arch or not to truss arch?
The decision to recommend truss arches on tomato crops is not that complicated, just do it! Even though I say just do it, there are contributing factors if you decide to apply truss arches.  I will list these factors below, but in general I have never seen a negative result when applying arches correctly and at the right time of the crop cycle.  What I do see is growers placing the arches incorrectly, in the wrong place at the wrong angle and far too late in the development of the truss.
Certhon launches lettuce yield forecasting software with 95% accuracy
May 6, 2024
Certhon launches lettuce yield forecasting software with 95% accuracy
Thevi, a revolutionary yield forecasting software package, gives lettuce growers the certainty to plan effectively, make informed decisions and optimize pricing strategies.
A crop on the cusp of ruin by leaf mould and the return of psyllid yellows.
April 23, 2024
A crop on the cusp of ruin by leaf mould and the return of psyllid yellows.
As autumn approaches growers face a different set of problems that require different solutions.
Signify foresees a bright future for vertical farming, driven by automation and diversification.
April 23, 2024
Signify foresees a bright future for vertical farming, driven by automation and diversification.
Innovative automation and digitization technologies are increasingly helping to make cultivation more productive and efficient, and to improve the interaction between hardware and software.
Revitalise your orchard – the use of Sili-Fert P for next-level apple quality
April 23, 2024
Revitalise your orchard – the use of Sili-Fert P for next-level apple quality
The fruit sector is under a huge amount of pressure due to the limitation of most plant protection products and climate change creating more stress for the trees.
More efficient cultivation with controlled raising under LED lighting
April 8, 2024
More efficient cultivation with controlled raising under LED lighting
What cultivation methods do you employ? Options for enhanced rising and production efficiency:
CLASSIFIED