Welcome to Sprayers 101

Welcome to Sprayers 101

Sprayers 101 is a non-profit resource describing best practices in safe, efficient and effective agricultural spraying. The site is based in Canada with content freely contributed by international authors. Browse our library of articles, videos, presentations, apps, calculators, tables and ePubs.

Tom (@Nozzle_Guy) & Jason (@Spray_Guy)

Our most recent articles:

  • What’s a Ramsay Valve?

    What’s a Ramsay Valve?

    This article has been modified with kind permission from an article on Retrofit Parts. Liquid pressure in an agricultural sprayer must be controlled so as to apply the correct volume of spray per hectare. For sprayers that use positive-displacement pumps driven by the tractor’s power take-off, higher flow rates are produced than are actually required.…

  • Exploring Spray Drones in Soybean

    Exploring Spray Drones in Soybean

    White mould is caused by the fungus Sclerotinia sclerotiorum and it’s an annual threat to soybean when cool, wet conditions correspond with flowering. Variety selection (e.g. high tolerance) and cultural control (e.g. crop rotation and wider row width) are important management tools, but ultimately the application of a crop protection product between R1 and R2…

  • How to Succeed with a Soil Drench Application in Strawberries

    How to Succeed with a Soil Drench Application in Strawberries

    In 2016, Ontario berry growers were surveyed to determine the typical spray volume they used to apply unspecified crop protection products. For strawberry growers (day-neutral and June-bearing), the results spanned 50 to 1,000 L/ha (~5 gpa to ~100 gpa). In an earlier survey (2013), respondents specified 250 to 650 L/ha (~26.5 to 70 gpa) for…

You might also like:

  • How to Use a Nozzle Flow Chart, With a Surprising Twist

    How to Use a Nozzle Flow Chart, With a Surprising Twist

    Undoubtedly, the number one question we get from operators is: “Which nozzle should I get”? Luckily there’s no simple answer, or we wouldn’t have jobs! The reason it’s not simple is because selecting the “right” nozzle for a sprayer is a process. It can be broken down into two steps: It’s a big question, so…

  • Increase Sprayer Productivity Without Driving Faster

    Increase Sprayer Productivity Without Driving Faster

    Timing trumps most things in crop protection. A great spray applied at the wrong time isn’t nearly as valuable as a mediocre spray at the right time. So how do we improve our ability to get things done at the right time? Often, we try to win races by driving faster. In our last article,…

  • Water Sensitive Paper for Assessing Spray Coverage

    Water Sensitive Paper for Assessing Spray Coverage

    Water Sensitive Paper Water-sensitive paper is a useful tool for assessing spray coverage.  Here are a few tips for making it work for you. Water-sensitive paper is manufactured by a number of companies, including Syngenta, Spot On, and WS Paper and is available for purchase (see here for comparisons). The papers are a useful tool…