Show all news
  • Agrochemical
  • Dicamba
  • Humidome
  • Labs For Life
  • research
  • Symbiotic Research
  • Tentamus
  • US
  • Volatility
  • Wind tunnel

Dicamba volatility tests via Humidome set-up at Symbiotic Research

Jun  5, 2020

International Trade Center, Mount Olive, New Jersey – SYMBIOTIC RESEARCH, LLC (SRL), announces the expansion of its agrochemical research services into conducting humidome studies with Dicamba formulations.   

US-EPA has requested companies marketing Dicamba formulations to use humidome set-ups to evaluate the effects of defined parameters on secondary movement of Dicamba.  In controlled experimental settings provided through humidomes, the effect of temperature, relative humidity, pH of spay solution, and a variety of tank mix partners on the volatilization of Dicamba can be studied. As the weed resistance to Round-UP is increasing globally and with the introduction of Dicamba resistant crops, agrochemical companies have started to formulate Dicamba into their formulation to prevent further weed resistance build-up.

Since Dicamba is inherently volatile, it has introduced new challenges for the farmers dealing with potential damages to adjacent crops. Dicamba manufacturers are forced to develop new formulations in which the volatility of Dicamba is minimized. In assessing the volatility of the improved formulations, there are three general alternatives:

  1. Wind tunnel tests which analyze the volatility of a pesticide by studying its drift potential using highly sophisticated, stationary equipment
  2. Field volatilization tests which determine the volatility of the pesticide under field conditions
  3. Humidome tests which determine the short-term volatilization potential of a pesticide within a controlled test environment

The standard Wind Tunnel and Field Volatilization tests are notoriously expensive and take many days or weeks to complete. In contrast, Humidome tests are rapid (in general, 24-hrs tests) and repeatable, making them economically viable. Therefore, multiple formulations can be tested very efficiently in a short timespan to identify the ideal formulation.

Early 2018, per request from one of its strategic agrochemical partners, a team of experts at Symbiotic Research started to work on developing a prototype sprayer system which is capable of applying proper amounts of Dicamba formulations onto each humidome tray filled with soil.  The spray assembly sought to deliver 1.8 grams of various Dicamba formulations using commercial spray nozzles operated under field-like spray conditions. For example, 120 humidome spray applications resulted in volumes within 99.17% of target application rates. The team converted one of its temperature and humidity-controlled laboratories to incubate humidomes over 24 hours. Simultaneously, the team developed an LC-MS/MS quantitative method to monitor the levels of volatilized dicamba in filter-trap assemblies.

In 2019, Symbiotic Research conducted its first humidome study for submission to the US-EPA. Hundreds of humidomes were successfully tested using various Dicamba and spray mix formulations – all were sprayed, incubated, and analyzed for the Dicamba levels with a short turnaround time. The team is now gearing up to increase the output by at least 400% to keep up with potential continuous testing for upcoming years. 

About Symbiotic Research

SRL (a Tentamus company) is a C-14 licensed contract research facility and which provides in-life and analytical research services. SRL is a fully GLP compliant laboratory that has expanded its services over the years to cover a broad range of agrochemical R&D services such as product chemistry, formulation analysis support, animal feeding/residue studies, metabolism studies in plant, animal & soil, environmental fate studies and recently Humidome studies. SRL is located at 350 Clark Drive, Mount Olive, NJ 07828.


Dan Safarpour
CEO Symbiotic Research
+1 (908) 887 4345

We Value Your Privacy
We use cookies on our website. Some of them are essential, while others help us to analyze how this website is being used and to allow you to contact us through our website, i.e. use the chat widget. You can change your decision at any time.
We Value Your Privacy
We use these technologies to analyze how this website is being used.
Name Google Analytics, Google Tag Manager
Provider Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland
Purpose Cookie by Google used for website analytics. Generates statistical data on how the visitor uses the website.
Privacy Policy
Cookie Name _ga, _gat, _gid
Cookie Expiry 2 years
Customer Interaction
These technologies will allow you to contact us through our website, i.e. use the chat widget.
Name LiveChat
Provider LiveChat Software S.A., ul. Zwycięska 47, 53-033 Wroclaw, Poland
Purpose Communication with clients via online chat using the API of the chat service LiveChat.
Privacy Policy
Cookie Name __lc_cid, __lc_cst
Cookie Expiry 2 years
Technologies required to enable the core functionality of this website.
Name Cookie Consent
Provider Owner of this website, Imprint
Purpose Saves the visitors preferences selected in the cookie banner.
Cookie Name ws_cookie_consent
Cookie Expiry 1 year