Corn Rootworm

Evaluation of corn rootworm hybrids

jvandyk — Thu, 13 Dec 2007 09:38:17 -0600

What gives the best protection against corn rootworm larvae?

Evaluation of corn rootworm hybrids

jvandyk — Thu, 13 Dec 2007 09:38:17 -0600

What gives the best protection against corn rootworm larvae?

Evaluation of corn rootworm hybrids

jvandyk — Thu, 13 Dec 2007 09:38:17 -0600

What gives the best protection against corn rootworm larvae?

When should you be concerned about adult corn rootworm feeding on your corn?

jvandyk — Fri, 10 Aug 2007 11:44:36 -0500

Watch corn fields during the time that they are pollinating.

Corn leaf injury from western corn rootworms

jvandyk — Thu, 19 Jul 2007 13:58:24 -0500

Pictures of leaf injury are presented.

Leaf injury by adult western corn rootworms

jvandyk — Thu, 19 Jul 2007 13:55:10 -0500

Leaf injury from feeding by adult western corn rootworms. (Marlin E. Rice)

Western corn rootworm adult and feeding injury

jvandyk — Thu, 19 Jul 2007 13:54:30 -0500

A western corn rootworm adult and feeding scars on corn leaf. (Marlin E. Rice)

Corn injury from adult western corn rootworm

jvandyk — Thu, 19 Jul 2007 13:47:09 -0500

Feeding injury to a corn leaf from adult western corn rootworms. (Marlin E. Rice)

First corn rootworm hatch reported

jvandyk — Wed, 06 Jun 2007 10:49:09 -0500

Found in Marshall County.

The monster in Iowa corn fields

jvandyk — Tue, 13 Feb 2007 12:49:21 -0600

Rootworms to the right of me, rootworms to the left of me...

The monster in Iowa corn fields

jvandyk — Tue, 13 Feb 2007 12:49:21 -0600

Rootworms to the right of me, rootworms to the left of me...

2006 rootworm monitoring sites in Iowa

jvandyk — Tue, 13 Feb 2007 12:25:46 -0600

Field locations: brown circle indicates fields where both a corn and soybean field were monitored for rotation-resistant western corn rootworms and extended-diapause northern corn rootworms; black square indicates fields where northern corn rootworm activity in soybeans following prolonged rotations away from corn were monitored.

2006 rootworm monitoring sites in Iowa

jvandyk — Tue, 13 Feb 2007 12:25:46 -0600

Northern corn rootworm in non-corn rotations

jvandyk — Tue, 13 Feb 2007 11:42:57 -0600

Mean number of northern corn rootworm adults emerging per cage from nine corn fields previously in extended, non-corn rotations.

Northern corn rootworm in non-corn rotations

jvandyk — Tue, 13 Feb 2007 11:42:57 -0600

Mean number of northern corn rootworm adults emerging per cage from nine corn fields previously in extended, non-corn rotations.

Corn rootworm eggs in Iowa soil

jvandyk — Tue, 13 Feb 2007 11:41:06 -0600

Comparison of June and September 2006 soil samples (±SE).

Corn rootworm eggs in Iowa soil

jvandyk — Tue, 13 Feb 2007 11:41:06 -0600

Comparison of June and September 2006 soil samples (±SE).

Bt rootworm corn failures: Understanding the issues

jvandyk — Tue, 14 Nov 2006 15:20:10 -0600

Hybrids are not "bullet-proof."

Rotation-resistant corn rootworms in Iowa

jvandyk — Wed, 26 Jul 2006 13:32:20 -0500

Background info and the 2006 survey.

Rotation-resistant corn rootworms in Iowa

jvandyk — Wed, 26 Jul 2006 13:32:20 -0500

Background info and the 2006 survey.

Corn rootworm larvae are actively feeding on your corn

jvandyk — Fri, 16 Jun 2006 13:32:04 -0500

Eggs hatched earlier this year.

The variant western corn rootworm in Iowa

jvandyk — Wed, 15 Mar 2006 13:37:57 -0600

The beetle is changing its behavior.

Did northern corn rootworms lay eggs in soybeans?

jvandyk — Wed, 15 Mar 2006 10:59:40 -0600

It's more complicated than it seems.

Three-year summary of corn rootworm control products

jvandyk — Thu, 15 Dec 2005 13:46:51 -0600

Research results are presented.

Three-year summary of corn rootworm control products

jvandyk — Thu, 15 Dec 2005 13:46:51 -0600

Research results are presented.

Three-year summary of corn rootworm control products

jvandyk — Thu, 15 Dec 2005 13:46:51 -0600

Research results are presented.

Rootworms and YieldGard RW hybrids

jvandyk — Thu, 28 Jul 2005 13:10:08 -0500

Examine your rootworm strategy!

Rootworms and YieldGard RW hybrids

jvandyk — Thu, 28 Jul 2005 13:10:08 -0500

Examine your rootworm strategy!

Two-year summary of corn rootworm insecticides and YieldGard® Rootworm

jvandyk — Sun, 14 Nov 2004 13:00:00 -0600

Research results are presented.

Two-year summary of corn rootworm insecticides and YieldGard® Rootworm

jvandyk — Sun, 14 Nov 2004 13:00:00 -0600

Research results are presented.

Two-year summary of corn rootworm insecticides and YieldGard® Rootworm

jvandyk — Sun, 14 Nov 2004 13:00:00 -0600

Research results are presented.

Rate corn roots for injury in July

jvandyk — Sun, 27 Jul 2003 14:00:00 -0500

Rootworm larvae have done most of their injury by now.

Corn rootworms and cold winter survival

jvandyk — Sun, 13 Apr 2003 14:00:00 -0500

Research results are presented.

New method for understanding corn rootworm injury

jvandyk — Sun, 16 Mar 2003 13:00:00 -0600

The new scale is more accurate.

YieldGard® Rootworm approved by EPA

jvandyk — Sun, 16 Mar 2003 13:00:00 -0600

Transgenic corn approved for corn rootworm larval control.

YieldGard® Rootworm corn evaluated

jvandyk — Sun, 16 Mar 2003 13:00:00 -0600

Research results are presented.

YieldGard® Rootworm corn requires a refuge

jvandyk — Sun, 16 Mar 2003 13:00:00 -0600

Twenty percent must be non-Bt.

YieldGard® Rootworm approved by EPA

jvandyk — Sun, 16 Mar 2003 13:00:00 -0600

Transgenic corn approved for corn rootworm larval control.

YieldGard® Rootworm corn evaluated

jvandyk — Sun, 16 Mar 2003 13:00:00 -0600

Research results are presented.

YieldGard® Rootworm corn requires a refuge

jvandyk — Sun, 16 Mar 2003 13:00:00 -0600

Twenty percent must be non-Bt.

Rootworm insecticides evaluated

jvandyk — Sun, 22 Dec 2002 13:00:00 -0600

Research results are presented.

More corn rootworms are good! (or bad?)

jvandyk — Sun, 21 Jul 2002 14:00:00 -0500

Soil insecticides applied at planting control only half the rootworms.

Corn rootworms are back!

jvandyk — Sun, 14 Jul 2002 14:00:00 -0500

Infestation level is very high in research plot.

Applying reduced rates of corn rootworm insecticides

jvandyk — Sun, 20 Jan 2002 13:00:00 -0600

Will reduced rates provide the same amount of protection as the labeled rate?

Rootworm insecticide performance

jvandyk — Sun, 18 Nov 2001 13:00:00 -0600

Research results are presented.

Corn rootworm insecticides evaluated

jvandyk — Sun, 19 Nov 2000 13:00:00 -0600

Research results are reported.

Corn rootworm insecticide results

jvandyk — Sun, 27 Feb 2000 13:00:00 -0600

Three years of research summarized

New publication about corn insects

jvandyk — Sun, 05 Dec 1999 13:00:00 -0600

New publication about corn insects

jvandyk — Sun, 05 Dec 1999 13:00:00 -0600

Seed-delivered rootworm control

jvandyk — Sun, 07 Nov 1999 13:00:00 -0600