10
Jun 2019

Black spots collapsing fruit post-harvest

Black spots collapsing fruit post-harvest

Sunken water-soaked area on the outside of the tomato

Last week I had an enquiry regarding the blackspots appearing on fruit post-harvest.  This is nothing new, I’ve had this happen to me on several occasions during twenty years of growing. Quite often, when you are picking the fruit, it is not visible, it’s not until 24 to 48 hours post-harvest that it starts to become noticeable.  It is very frustrating to receive a phone call, from the markets, to say your fruit is collapsing.  I believe the photo, above, to be Anthracnose, it is hard to be 100% certain without it being sent to a laboratory for analysis and confirmation.

Two weeks ago I came across Blight for the first time in a while. It is no surprise that now, with the poor weather we are being belted with, fungus issues are appearing.  It has cooled down but humidity is high and even growers, with the best heating systems, can fall foul to all types of fungal infections.  Left untreated, these brown Anthracnose type spots, on the fruit will more than likely continue to cause issues.  

Cover Photo: The fruit collapsing from the brown fungal spots

 

Most experienced growers will have come across this at some point in time, and like me, would’ve sourced a recommended fungicide from their local horticulture supplier.  Which, in my experience has done the trick each time.  Now new products, like HuwaSan, are available and on the market, these can be used as a post-harvest treatment.

Having these options for growers is hugely beneficial.  Please ensure you get all the information, regarding application, from the supplier before applying to your crops pre or post-harvest.

 

For more information on HuwaSan Contact:

Grant Beare

M – 021 020 08040

E – grant@educhem.co.nz

 

 

 

 

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

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

Article Written by Stefan Vogrincic, Consultant, Grower2Grower

Article Edited by Marie Vogrincic, Editor, Grower2Grower

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

Grodan and Philips Horticulture LED Solutions demonstrate additional heat input reduction while growing very flavorful quality tomatoes
March 24, 2025
Dynamically controllable LED grow lights for plant nursery
New developments continue to improve plant quality and reduce energy requirements
No Shortcuts in CEA: Hard Truths on Greenhouse Success
February 25, 2025
No Shortcuts in CEA: Hard Truths on Greenhouse Success
"CEA (Controlled Environment Agriculture) is not a get-rich-quick industry. Success requires discipline, patience, and a commitment to long-term operational excellence"
February 25, 2025
Den Berk Délice improved production predictability and energy efficiency with Philips horticulture intelligent lighting
This system automatically controls LED lighting based on natural light levels
February 11, 2025
Intelligent Philips LED lighting at J&A Chrysanten optimizes production and energy efficiency
Philips help optimize chrysanthemum production and make it more sustainable
CLASSIFIED