economic threshold - Canadian Agronomist

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27 Mar Revising Lygus bug economic injury levels

Posted at 21:05h in Insects

The overall Economic Injury Level was found to be around 9 to 23 Lygus bugs per 10 sweeps using $15.47/bu ($682/tonne) canola prices. However, insecticide trials on farmers’ commercial fields found that yield was protected from Lygus feeding with a foliar insecticide application at the...

18 Jul Economic threshold for pea aphid in lentil

Posted at 17:18h in Insects

A new economic threshold of 36 ± 7 aphids (29 to 43 aphids) per 180 degree sweep was calculated for Saskatchewan lentil, and provides 7 days lead time to arrange insecticidal application. The economic injury level was calculated at 78 ± 14 aphids (64 to...