WCE Agriculture

Western Colorado Entomology-Agriculture
This page was updated on April 11, 2008	Agricultural Updates
Agricultural Pests
Differentiating Onion Thrips and Western Flower Thrips How to determine the difference between Onion Thrips and Western Flower Thrips.	Onion Thrips or Western Flower Thrips (html) Onion Thrips or Western Flower Thrips (pdf)
Research Project Reports
Alfalfa
Cancellation of Furadan 4F registration on alfalfa. The EPA has announced that registration of Furadan 4F registration will be cancelled on alfalfa. The cancellation is dependent upon the acceptance of the IRED linked here.	Carbofuran I.R.E.D. Carbofuran I.R.E.D. Facts
Roundup Ready Pollen Movement. We conducted a study in 2006 to determine the role of alkali bees play in moving Roundup Ready pollen from alfalfa seed production fields in Mesa County. Pollen movement took place, but honey and leaf cutter bees played a greater role than alkali bees.	Movement of Roundup Ready® Alfalfa Pollen (pdf)
Spider Mite Control in Seed Alfalfa 2007 Using Acramite to control two spotted spider mites in seed alfalfa.	Spider Mite Trial, Seed Alfalfa, 2007 (pdf) Spider Mite Trial, Seed Alfalfa, 2007 (html)



Corn
Management of High Plains Disease in Western Colorado Sweet Corn High Plains Disease is viral disease recently found in corn, wheat and related grasses. Wheat curl mite is responsible for the transmission of this virus.	TRA Article on High Plains Disease in Sweet Corn (html) TRA Article on High Plains Disease in Sweet Corn (pdf)
Nuclear Polyhedrosis Virus for Corn Earworm Control in Sweet Corn. We conducted an aerial trial using Gemstar, and nuclear polyhedrosis virus to control corn earworm in sweet corn. Results were promising, with some control equal to commonly used pyrethroid insecticides.	Gemstar for Corn Earworm Control (pdf)
Sap Beetle Biology and Control in Sweet Corn. Research was conducted in 2004 to investigate the biology and control of sap beetles in western Colorado sweet corn. The report outlines the findings of this research.	Sap Beetle in Sweet Corn (pdf)
Spider Mite Trial, 2007 A comparison among Oberon, Onager, and Comite for control of spider mites in field corn.	Gowan Report, Spider Mites, 2007 (pdf) Gowan Report, Spider Mites, 2007 (html)



Onions
Foliar Onion Thrips Insecticide Trial, 2004	Onion Trial 2004
IR-4 Foliar Insecticide Trial, Onion Thrips, 2005	IR-4 Onion Trial 2005
Regent Seed Treatment Trial, Onion Thrips, 2006	Regent Onion Trial 2006
Foliar Onion Thrips Insecticide Trial, 2006	Foliar Onion Trial 2006
IR-4 Seed Treatment Trial, Onion Thrips, 2007	IR-4 Onion Trial 2007 (pdf)

Western Colorado Entomology-Agriculture

This page was updated on April 11, 2008

Agricultural Updates

Agricultural Pests

Differentiating Onion Thrips and Western Flower Thrips

How to determine the difference between Onion Thrips and Western Flower Thrips.

Onion Thrips or Western Flower Thrips (html)
Onion Thrips or Western Flower Thrips (pdf)

Onion Thrips (left) Western Flower Thrips (right)

Research Project Reports

Alfalfa

Cancellation of Furadan 4F registration on alfalfa.

The EPA has announced that registration of Furadan 4F registration will be cancelled on alfalfa. The cancellation is dependent upon the acceptance of the IRED linked here.

Carbofuran I.R.E.D.
Carbofuran I.R.E.D. Facts

Roundup Ready Pollen Movement.

We conducted a study in 2006 to determine the role of alkali bees play in moving Roundup Ready pollen from alfalfa seed production fields in Mesa County. Pollen movement took place, but honey and leaf cutter bees played a greater role than alkali bees.

Movement of Roundup Ready® Alfalfa Pollen (pdf)

Spider Mite Control in Seed Alfalfa 2007

Using Acramite to control two spotted spider mites in seed alfalfa.

Spider Mite Trial, Seed Alfalfa, 2007 (pdf)
Spider Mite Trial, Seed Alfalfa, 2007 (html)

Corn

Management of High Plains Disease in Western Colorado Sweet Corn

High Plains Disease is viral disease recently found in corn, wheat and related grasses. Wheat curl mite is responsible for the transmission of this virus.

TRA Article on High Plains Disease in Sweet Corn (html)
TRA Article on High Plains Disease in Sweet Corn (pdf)

Nuclear Polyhedrosis Virus for Corn Earworm Control in Sweet Corn.

We conducted an aerial trial using Gemstar, and nuclear polyhedrosis virus to control corn earworm in sweet corn. Results were promising, with some control equal to commonly used pyrethroid insecticides.

Gemstar for Corn Earworm Control (pdf)

Sap Beetle Biology and Control in Sweet Corn.

Research was conducted in 2004 to investigate the biology and control of sap beetles in western Colorado sweet corn. The report outlines the findings of this research.

Sap Beetle in Sweet Corn (pdf)