Onion thrips scouting

[@eatingamandarin]

This is a really informative video. We've just begun using youtube uploads as educational tools with our employees, and this will be a beauty! Thank you

[@juancampos9693]

Hi, thx for the video. I want to know where you get that reference of dividing the number of thrips and leaf to obtain the number of thrips per leaf. I mean wheres does that number 50 comes from.