Gall Midges

[swiacy]

Any farmers out there have any knowledge about these critters?

 

[ISUAgronomist]

Nasty little buggers. No good control options for the larva that I've seen. If I remember correctly, Thimet t-banded at planting has shown some slight positive results when used on field edges.

UNL has an upcoming field day devoted to gall midge updates. Have to register by Saturday to attend:

Soybean Gall Midge Regional Field Day Set for July 25

Participants will learn how to identify soybean gall midge larvae and plant injury, and learn about the latest research on control options.

cropwatch.unl.edu

 

[Agclone91]

I've only found them once, a few years ago when their name was just starting to get out. Generally speaking, they haven't become a huge economic pest yet but they certainly have the potential. They come in from field edges and grass strips and will move back and forth year to year based on crop rotation. Past the fly stage there's not much you can do. Endigo received a label a couple of years ago for suppression, but it's really spotty and largely life stage dependent.

 

[I@ST1]

Sevin?

 

[ISUAgronomist]

I've only found them once, a few years ago when their name was just starting to get out. Generally speaking, they haven't become a huge economic pest yet but they certainly have the potential. They come in from field edges and grass strips and will move back and forth year to year based on crop rotation. Past the fly stage there's not much you can do. Endigo received a label a couple of years ago for suppression, but it's really spotty and largely life stage dependent.

Yeah a few products have 2ee labels for adult management but that's a make you a feel like you're doing something money spend but doesn't do much/anything for population control.

Developing a post applied, systemic insecticide to target the larva probably isn't in the cards. Too much risk regarding human exposure.

 

[FLYINGCYCLONE]

Lorsban ? I forgot we don’t have that any more.
Look at The Crop Protection Network. It is info from the Land
Grant Universities. Very good info.

 

[Turn2]

Lorsban ? I forgot we don’t have that any more.
Look at The Crop Protection Network. It is info from the Land
Grant Universities. Very good info.

Not a whole lot of info there either. Since they seldom impact beyond the margins, is getting rid of them even feasible? Has anyone ever suggested maybe baling those margins and waterways isn't such a good idea?

Crop Protection Network News Search page

This is the Crop Protection Network News Search page.

cropprotectionnetwork.org

 

[StClone]

Newer Soybean pest and research is ongoing: https://crops.extension.iastate.edu/encyclopedia/soybean-gall-midge

 

[Agclone91]

Lorsban ? I forgot we don’t have that any more.
Look at The Crop Protection Network. It is info from the Land
Grant Universities. Very good info.

Even if lorsban was still useable, it wouldn't kill the larva once they enter the plant because it is not systemic.

 

[FLYINGCYCLONE]

The flying bugs are hard to kill, I think , so I think the worms are outside the plant a short time?