Resistant Alfalfa Weevil Control

Dan Adamson, Regional Agronomist • June 27, 2022

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

  • NanoPro®
  • STEWARD® EC INSECTICIDE
  • LEVEL 7®
  • InterLock®


PROCEDURE

  1. Fill spray tank with water halfway
  2. Turn on agitator
  3. Add STEWARD® EC INSECTICIDE and NanoPro®
  4. Add Interlock® and LEVEL 7®
  5. Two areas were sprayed - East and West Field respectively.
  6. Sweeps (Two Sweeps of the net per “sweep”) were taken before sprays to determine weevil counts
  7. Sweeps were taken 3 days after the application to determine counts
  8. Sweeps were taken 8 days after the application to determine counts

CONCLUSION

The preliminary conclusion is that the nanoparticles increased the speed that the ingested insecticide reacted with the weevils causing a quicker death.


All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

Have a question or want to learn more?  Fill out the form below:

Stop Fertilizer Waste in Its Tracks: How NanoCote™ Saves You Over $10 Per Acre

By Garrett Olsen • April 29, 2025
Nano-Yield’s dry fertilizer coating technology designed to reduce dust-related nutrient loss and increase product efficiency. With a 98% reduction in dust loss, NanoCote turns a frustrating loss into a measurable win.

Nanoparticles in Coca-Cola: What They Are and How They Form

By Garrett Olsen, Director of R&D • February 10, 2025
Nanoparticles have been making headlines for years due to their role in advanced agriculture technologies, medicine, and even food science. Recently, research has highlighted the presence of nanoparticles in one of the world’s most iconic beverages: Coca-Cola.

Dan Adamson Expands Role to Drive NanoCote Growth in the Western U.S.

By Misty Kempton, Marketing Manager • January 30, 2025
This move is all about scaling NanoCote adoption faster. Dan’s agronomic expertise and industry connections make him the perfect fit to grow our dealer network and help more growers benefit from NanoCote Core’s game-changing nanoparticle technology.

3rd Year Precision Planting PTI Trials with Nano-Yield® nanotechnology

By Jenny Phillips, Director of Marketing • January 28, 2025
Last week Precision Planting started their annual Winter Conferences to roll out their data findings for the year. The Precision Technology Institute provides you with the chance to see the latest technologies in action and learn insights to apply on your own operation. Trials are conducted on 400+ acres of agronomic trials in Pontiac, IL. Nano-Yield is proud to be a partner for a third year, and is excited to showcase some of the trial results:

Celebrating the Legacy of Warren Bell: A Retirement Tribute

By Misty Kempton, Marketing Manager • January 15, 2025
As Warren Bell steps into retirement, we pause to celebrate a remarkable career that has left an indelible mark on the agricultural industry and all who have had the privilege of working alongside him. Warren's journey is one of perseverance, innovation, and a deep passion for farming—a story that has inspired countless individuals and transformed an entire industry.

NanoPro: Every Tank, Every Pass

By Britney Hunter, Technical Agronomist • January 14, 2025
When comparing the effect of NanoPro with various crop protection products there can be instances of increased uptake as high as 140%, however the average is 20-50%.

NanoPro® and NanoN+®: NOW PFR PROVEN through Beck’s

By Jenny Phillips, Director of Marketing • December 2, 2024
Nano-Yield is excited to announce that after 3 years of rigorous testing through Beck’s Practical Farm Research Program (PFR), NanoPro and NanoN+ are now “PFR PROVEN”.

NanoCon Dealer Awards

By Jenny Phillips, Director of Marketing • November 22, 2024
Each year at NanoCon we recognize our partnerships that have really excelled. We appreciate all of the support of our dealers and growers that have adopted nanotechnology into their programs, and we strive to be in Every Tank, Every Pass!
More Posts