What factor can contribute to excessive drift during spraying?

Excessive drift during spraying is significantly influenced by the positioning of nozzles relative to the target area. When nozzles are positioned too far from the target, the distance can cause the pesticide droplets to separate too much before they reach the intended surface. This dispersion may lead to more droplets being carried away by air currents, thereby increasing drift. The farther the nozzles are from the target, the greater the likelihood that environmental factors, such as wind, can take effect and carry the spray particles off course.

In contrast, other factors like pressure settings, wind speed, and selecting the appropriate nozzle type play distinct roles but do not directly contribute to excessive drift as much as this particular factor. For example, too low of a pressure setting can affect the droplet size but may not inherently cause drift. Similarly, low wind speeds generally do not lead to drift, and using the correct nozzle type helps in managing droplet size and drift potential, not the positioning of the nozzles.