Dan Adamson, Agronomist, counting weevils in an infested alfalfa field.
INTRODUCTION
Pyrethroid resistant alfalfa in Goldendale, WA has been annihilating the alfalfa crops in the area for several years. STEWARD® EC INSECTICIDE has been a great choice for battling the weevil. However STEWARD® EC INSECTICIDE is a slow working ingestion poison group 22 insecticide.
HYPOTHESIS
Adding NanoPro® to the tank mix will increase the efficacy and the quickness of STEWARD® EC INSECTICIDE.
MATERIALS
PROCEDURE
Field/Treated Untreated | Day of Application | 3 Days | 8 Days |
---|---|---|---|
West Treated | 25 Instars - 2 Adults | 3 Instars - 0 Adults | 4 Instars - 0 Adults |
West Untreated | 25 Instars - 2 Adults | 23.5 Instars - 0 Adults | 6.5 Instars - 0 Adults |
East Treated | 25 Instars - 2 Adults | 15 Instars - 0 Adults | 4 Instars - 0 Adults |
East Untreated | 25 Instars - 2 Adults | 46 Instars - 0 Adults | 9 Instars - 0 Adults |
CONCLUSION
The preliminary conclusion is that the nanoparticles increased the speed that the ingested insecticide reacted with the weevils causing a quicker death.
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