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Copper Fungicides for Organic Disease Management in Vegetables

September 16, 2013

Copper Fungicides for Organic Disease Management in Vegetables
From Margaret McGrath, Department of Plant Pathology and Plant-Microbe Biology, Cornell:

There are several different copper fungicides approved for use in organically-produced crops. Copper fungicides are important tools for managing diseases that cannot be effectively managed with cultural practices alone. They have broad-spectrum activity, acting on bacteria as well as fungi. Following many years of use, there is a lot more information on efficacy of copper fungicides than the newer biological products. Manufacturers of some biologicals recommend that they be used in a management program with copper fungicides (often in alternation or at low label rate). Thus it appears copper fungicides will continue to be important for managing diseases. Copper fungicides differ in their active ingredient, use rate, re-entry interval, and the amount of copper. Copper is an inorganic compound thus it does not breakdown like organic compounds and consequently copper can accumulate in soil when used intensively. Plants take up some copper from soil because it is a micronutrient. Similarly, humans need a small amount of copper in their diets. Metallic copper equivalent (MCE) is a commonly used measure of the quantity of copper in fungicides.

Click here for a chart on the Highest Label Rate of Organic Copper Fungicides for Some Vegetable Crops.

The specific directions on fungicide labels must be adhered to. They supersede these recommendations (above), if there is a conflict. Check state registration and organic approval before using a product. Any reference to commercial products, trade or brand names is for information only; no endorsement is intended.


Highest Label Rate of Organic Copper Fungicides for Some Vegetable Crops (pdf; 198KB)

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Eastern Broccoli Market Opportunity Assessment

Is there an opportunity for New York growers and marketers to invest in broccoli production and distribution as a way to diversify and strengthen their businesses, while adding jobs, dollars, and resilience to the economy and rural communities?

The Eastern Broccoli Market Opportunity Assessment for New York State sought to answer this very question. The study was made possible by the initiative of three partner organizations: Hudson Valley AgriBusiness Development Corporation, Red Tomato, and the Eastern Broccoli Project, with funding provided by Empire State Development.


Essentials of Farm Food Safety for Farmworkers

Call to Schedule a Tailored Training for Your Farm Workers
This is a training is brought to you by the CCE Cornell Vegetable Program. Workers will learn the importance of farm food safety and the ins and outs of how it works on the farm and field.

This training aims to cover many of the required worker training topics set forth by GAPs (Good Agricultural Practices and FSMA (the Food Safety Modernization Act), or other 3rd party auditing programs. This training series primarily focuses on training farmworkers in the produce industry. Because Food Safety is a company-wide responsibility, we invite all farm employees to participate in this training. Each farm has unique operating practices but the basics of food safety are critical skill set needed for workers to have if a smoothly operating food safety program is going to work on your farm. Topics covered include:
  • Understand the role of worker training in ensuring food safety on your farm
  • Cover all the important points required for training
  • Identify challenges to consider when training workers and discuss solutions
  • Cover required records for training
  • Introduce resources available to managers to assist in training
  • Why is farm food safety important?
  • How does produce become contaminated?
  • What are the signs that you or a coworker are ill?
  • How can you minimize food safety risks on the farm?
  • What should you do if you see a risk you cannot reduce or eliminate?
  • And much more
We can provide a tailored training for your workers through an online program before the season starts or combine workers with another farm to do a larger training. Contact Robert Hadad for more information.

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