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FIELD EVALUATION OF CARBOFURAN BAIT AGAINST GRASSHOPPER (ORTHOPTERA: ACRIDIDAE) POPULATIONS IN SASKATCHEWAN1,2

Published online by Cambridge University Press:  31 May 2012

Al B. Ewen
Affiliation:
Agriculture Canada Research Station, 107 Science Crescent, Saskatoon, Saskatchewan, Canada S7N 0X2
M.K. Mukerji
Affiliation:
Agriculture Canada Research Station, 107 Science Crescent, Saskatoon, Saskatchewan, Canada S7N 0X2

Abstract

The dosage of carbofuran as a bait required to reduce third-instar grasshopper populations to non-economic levels (5–10 grasshoppers per square metre in short mixed grass hay pasture) was considerably lower than the recommended rate for spray application. The results from 2 years’ field trials showed that 35.0 g active ingredient per hectare as a bait would reduce grasshopper populations by about 70%, 3 days after application.

Résumé

La dose de carbofuran utilisée comme appât pour réduire les populations de criquets de troisième stade larvaire à des niveaux sans importance économique (5–10 criquets par mètre carré) dans des prairies de fauche ou de pâture composées d’herbes courtes ou d’herbes mixtes était bien inférieure à la dose recommandée à des fins de pulvérisation. Les résultats après 2 ans d’expérience sur le terrain ont montré que l’utilisation comme appât de 35,0 g d’ingrédient actif par hectare réduirait les populations d’environ 70%, 3 jours après l’application.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1987

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References

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