Cory Lundgren

Agronomist & Agronomy news from north central Iowa

[Cory Lundgren @CoryLundgren1]

Check out this Conservation Agronomist opportunity https://t.co/b85oMzKoCU

[paige @paigethomsen7]

End of season evaluations. You can see through the stand- corn is standing well. 45 degree angle push tests show weak stalks. Whether it’s from drought stress or lack of nutrient uptake due to dry soils, harvest plans by field should be made. Be safe out there this fall.

[Cory Lundgren @CoryLundgren1]

Hot south western winds at this stage will likely bring some edge affect. Not much anyone can do but pray for rain and a break from the heat.

[Cory Lundgren @CoryLundgren1]

Iowa corn knows you raise the flag on the 4th. Happy Birthday America! ‘Merica! #dkc59-50

[paige @paigethomsen7]

I do spend a lot of time in corn fields each season. But let’s not forget there is a lot to see in soybeans as well. Click on link for full video talking staging and scouting soybeans https://t.co/82uelHolxK

[Cory Lundgren @CoryLundgren1]

June 16th just before noon. Not sure if this is the earliest I’ve spotted blooms but gotta be close. Everything seems to be going early so far this year.

[Cory Lundgren @CoryLundgren1]

@snowboardfarmer @FieldView What are you needing help with?

[Cory Lundgren @CoryLundgren1]

V4-V6 corn is “magic” window for corn yield. The corn plant is deciding what size ear to set, and what yield it can produce. Right now soil moisture in the root zone is optimal, temperatures are great. Corn should respond great to foliage fungicide and foliage fertilizer. Go BIG!

[Cory Lundgren @CoryLundgren1]

Corn in our area is firmly in the V3-V4 range. With the area moisture and forecasted temps the leaves will FLY! Next week is the time to get your post emerge spraying started. Corn V3 today will easily be be V5 by next Sunday.

[Cory Lundgren @CoryLundgren1]

@MitchMontgomery Lucky for everyone who follows me, Twitter limits how much I can say in one tweet. Lol BLB should have been here a while. I should elaborate I didn’t find it in a bean field. A June beetle early and BLB out of its habitat is hopefully not a bad sign.

[Cory Lundgren @CoryLundgren1]

I already found one June Beetle and now...Bean Leaf Beetle. Hopefully not signs of things to come.

[Cory Lundgren @CoryLundgren1]

@snowboardfarmer I wish we had a way to accomplish that...

[Cory Lundgren @CoryLundgren1]

Visit your local NEW Cooperative agronomist for all the details! https://t.co/xit86rcpnO

[Cory Lundgren @CoryLundgren1]

I don’t know if this is a true indication of next years population but every spot I dug this afternoon produced at least one of these guys in my landscaping.

[Joe Hora @joe_hora]

Seeing more and more of the “edge effect” @climatecorp Field Health Imagery helps quantify impacted areas. Essentially a micro environment with excessive heat. Good for scouting efficiency and visualizing heat stress.

[Todd Claussen @ToddClaussen]

Physoderma maydis. Same pathogen for leaf symptoms of P Brown Spot as for P Node Break. No leaf symptoms but the sleeping problem is at the 7th and 8th nodes.

[Cory Lundgren @CoryLundgren1]

The best way to control weeds is before they emerge. PPI triflurilan. Post Enlist Duo with Zidua. The light interception is huge in this area with no where near enough rain.

[Cory Lundgren @CoryLundgren1]

Boone County Iowa, Japanese Beetle. Hopefully they don’t get stronger in Webster County!

[Joe Hora @joe_hora]

Seeing more and more CRW beetle activity in corn on corn throughout North Central IA. 1.5 Western CRW beetles per plant = threshold level. In continuous corn the ratio to male female populations is 50/50 vs 1st year corn where you see a ratio of 70/30 female to male. #scout20

[Cory Lundgren @CoryLundgren1]

Another generation of thistle caterpillar is out. Judging by the moth flights and earlier damage I don’t see them becoming the problem we had in 2019.