Scutigerella immaculata
Pest description and crop damage Active, white, fragile, centipede-like, soil-borne relatives of insects, 0.25 inch long, with 12 or more pairs of legs. They primarily damage sugar beets early in the season by feeding on germinating seeds or on small roots of seedlings.
Scouting and thresholds No formal economic thresholds exist for symphylan insecticide treatment decisions. They occur in unpredictably spotty infestations and generally are considered minor pests.
Management-chemical control
Only one product is registered for at-plant application (Table 1), and only pyrethrin-containing products (Table 3) are available as "rescue" treatments that can be applied postemergence for symphylans in sugar beet.