Which violation must be reported by the opposing team to the umpire?

A player or coach wearing an Apple Watch constitutes a violation that must be reported to the umpire because it directly conflicts with the regulations regarding technology use in the game. The NCAA rules prohibit the use of electronic devices during competition that could provide an unfair advantage. Specifically, wearable technology like smartwatches can potentially be used to communicate information or receive coaching instructions, which is against the spirit of fair play. Therefore, it is essential for the opposing team to report this violation to ensure compliance with the rules.

On the other hand, using drumsticks on a bucket in the dugouts might be considered inappropriate conduct or unsportsmanlike behavior, but it doesn't fall under the same category of rule violations that must be reported to the umpire as a breach of technology use does. The focus of the regulations typically revolves around maintaining fair competition, and this action might not directly affect the game in the same way that a technological offense would.