Werling and Szendrei produce video on scouting for onion thrips

Vegetable entomologist Zsofia Szendrei and Michigan State University Extension educator Ben Werling have produced a short video for onion growers to learn the steps and importance of scouting for onion thrips and using treatment thresholds.

Vegetable entomologist Zsofia Szendrei and Michigan State University Extension educator Ben Werling have produced a short video for onion growers to learn the steps and importance of scouting for onion thrips and using treatment thresholds.

Onion thrips are one of the most damaging insect pests of onions in the Great Lakes region. This video aims to help onion growers and crop consultants scout onion fields to obtain the information they need to make timely decisions about onion thrips control. It demonstrates how to count thrips in the field, record field data, and do calculations to determine if thrips numbers are over threshold. The combined use of accurate thrips counts and research-based thresholds can help growers save money by reducing sprays while helping ensure that sprays are timely and maintain thrips populations at economically acceptable levels.

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