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Canola Watch quiz – Flea beetle theme
Further reading: 9 steps to make the right flea beetle spray decision Canola Encyclopedia chapter on flea beetles PPMN blog on flea beetles
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…
Flea beetles: More striped
Striped flea beetles, shown above, seem to have become the dominant species in many regions, with crucifer species harder to find. This has been observed in fields in central Alberta, in particular. Research shows that striped flea beetles emerge earlier than crucifer flea beetles, so one thought is that the crucifers have not emerged, yet.…
Striped flea beetles are tough and moving in
You have two important reason to watch closely for striped flea beetles this year. 1. They are more tolerant of seed treatments currently on the market, so striped flea beetles are more likely than crucifer flea beetles to live through the seed treatment protection period. 2. Striped flea beetles are gaining territory, especially in central…