Five questions on flea beetles – including their characteristics and management steps. Click submit to see how you compare to your peers and, more importantly, to get the detailed agronomy information in the answers.
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Canola Watch quiz – Flea beetles
Give yourself a flea beetles primer ahead of scouting season. Take our quiz! Striped, crucifer and hop species of flea beetles. Photo credit: Denice Geverink, U of M
Flea Beetles – Stem Feeding Noticed
Flea beetle spraying was reported in many locations across the Prairies. Stem feeding was also noticed in a number of areas. Stem feeding is not a concern if small pitting is occurring. However, if significant stem feeding is occurring (impeding flow of water and nutrients in the stem or stems being clipped off), then a…
Flea beetles feasting
Flea beetle pressure is quite high in many locations. Spraying may be necessary. If damage was quick and devastating, growers may face a reseeding decision. Early scouting is necessary to make sure the seed treatment provides enough protection. Here’s why: (1) Flea beetles need to take a bite of the plant in order to take…
When it’s warm, flea beetles go everywhere
In warmer temperatures, flea beetles are more mobile — so the technique of scouting only at field edges no longer applies. It will be important to scout throughout fields for flea beetle hot spots. Spray only when damage reaches the action threshold — which is 25% of leaf area eaten or damaged. (See the photo…