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A & L Laboratories Identifies New Disease Issues in Cannabis Production

Extensive disease diagnostic capabilities of A&L Laboratories help producers make quick identification and take preventative action against new diseases.

LONDON, ONTARIO -- April 24, 2019 -- A & L Canada Laboratories Inc., an innovative leader in analytical services and technologies, announced confirmation of several new disease issues in cannabis production. Rapid growth of cannabis production has growers finding new profit reducing pest and disease problems. The extensive disease diagnostic capability of A&L Laboratories allows for quick identification of these new pathogens and implementation of preventative actions. Publication in scientific journals will be made documenting the nature of the pathogens and related diseases.

The new cannabis diseases identified by A&L Laboratories include:

  • Tomato bushy stunt virus (TBSV) - First report of TBSV in Cannabis globally
  • Tobacco streak virus (TSV) - First report of TSV in Cannabis globally
  • First report of Phytoplasma associated with Cannabis Witches' Broom in Canada
  • Identified Golovinomyces cichoracearum as the most frequent pathogen associated with powdery mildew in Cannabis
  • "We have been working with greenhouse producers for years to identify and manage pest problems. It is not surprising that cannabis production will have to prepare for and overcome new pest issues," said Greg Patterson, CEO of A & L.

    A & L Laboratories' experienced agronomists and pathologists are well positioned to help licensed cannabis producers with agronomic advice for disease management. The company also offers a world-class facility and expertise in diagnostics for water, growing media, and finished a cannabis product.

    "Identifying new diseases can be challenging. Our diagnostic portfolio is comprised of very specific methodologies using state-of-the-art molecular technologies allowing A&L to confirm over 400 plant diseases" according to Dr. Keri Wang, Microbiology Lab Manager, A & L Canada Laboratories Inc.

    The full disease diagnostic capabilities of A&L Canada Laboratories can be found on the company website at