Blog | VinoBloc | VinoBloc

Juicy red grapes rest on a concrete block against a brown background.

Petiole Sample Variability: The Hidden Cost of Inconsistent Sampling

Inconsistent petiole sample results between blocks on the same day often stem from inconsistent sampling methodology. This post details a step-by-step protocol for standardized petiole sampling, including specific leaf selection, timing, and handling, to improve data accuracy and guide better nutrient management decisions.

September 22, 2026

6 min read

#petiole sample#variability#sampling error

Serene vineyard scene at sunset in Montgueux, Grand Est, France.

Ensuring PPE Compliance: Verifying Correct Use Without Constant Supervision in Vineyards

Vineyard managers can ensure PPE compliance without constant supervision by implementing robust training, clear specifications, digital tracking, and a culture of accountability. This guide provides actionable steps to protect workers and mitigate operational risks.

September 22, 2026

8 min read

#PPE compliance#vineyard safety#worker protection

Close-up of ripe black grapes hanging from a vine, sunlit in Placerville, California vineyard.

Managing Heat Risk: The Supervisor's Critical Role Under California and Federal Law for Vineyard Operations

Vineyard supervisors bear significant responsibility for managing heat risk under California and Federal law. This post details actionable steps for implementing a compliant heat illness prevention plan, from proactive training and daily monitoring to emergency response and documentation, safeguarding workers and vineyard operations.

September 18, 2026

10 min read

#heat illness prevention#supervisor responsibility#Cal/OSHA

Vineyard Management Blog

Petiole Sample Variability: The Hidden Cost of Inconsistent Sampling

Ensuring PPE Compliance: Verifying Correct Use Without Constant Supervision in Vineyards

Managing Heat Risk: The Supervisor's Critical Role Under California and Federal Law for Vineyard Operations

Stay Updated

Vineyard Management Newsletter