N Field Observations for This Week
Each week Nebraska Extension professionals share their field observations on Twitter. You can find these reports by searching the hashtag #NField on Twitter or by checking back here.
#NField Reports - September 7-18, 2020
This week, Megan Taylor talks harvest aids for soybeans and alfalfa regrowth, Aaron Nygren discusses evaluating your nitrogen program, and Amy Timmerman takes a look at vivipary occurring in corn.
#Nfield talks harvest aids for #soybeans, check out @UNL_CropWatch for more info!— Megan Taylor (@CropTalkMegan) September 17, 2020
Right Field-Fields with weeds that add moisture
Right Product-Check out pg. 140 for info https://t.co/cSIIovRcab
Right Timing-Check PHI and maturity before applying#nebext @ColfaxCountyExt pic.twitter.com/tyKPHKXUoY
Wondering how your nitrogen program worked? In today's #NField Observation we look at the #corn stalk nitrate test.— Aaron Nygren (@ColfaxCountyExt) September 15, 2020
Sample 1-3 weeks after black layer
8" sample of stalk
15 stalks per test
Best used over multiple years to evaluate N program@UNL_CropWatch #NebExt pic.twitter.com/9uYqVoLlM3
#NField looks at alfalfa regrowth after last cutting— Megan Taylor (@CropTalkMegan) September 12, 2020
Regrowth for 6 weeks to limit risk in winter
Do not harvest after a soft frost (30-32°F)of stored reserves
Need forage, wait for a killing frost (24-29°F) @UNL_CropWatch @HuskerHerdsman @ForagesGuy @Pasture_Forage pic.twitter.com/37JZ93RJCf
#NField Reports - August 31-September 4, 2020
This week, Ben Beckman talks about corn silage, Amy Timmerman looks at grain molds developing in corn and Megan Taylor discusses drylands corn condition in northeast Nebraska.
Sometimes Mother Nature doesn't play nice. Corn damaged by hail drought can still make #silage! #Nfield @UNL_CropWatch @CropTalkMegan @ForagesGuy— Ben Beckman (@HuskerHerdsman) September 3, 2020
⛈️Silage feed value = 20% Grain + 80% Plant
40 bu/ac yields may still produce "full energy" silage pic.twitter.com/ssTEeaqRaR
#Nfield taking a look at grain molds developing in corn.— Amy Timmerman (@AmyTimmerman2) September 3, 2020
Blue to Blue-Gray growth = Pencillin ear rot
Fusarium ear rots do produce mycotoxins
15% moisture or less before going into the bin to prevent further growth of those molds (fungi)@UNL_CropWatch #Nebext pic.twitter.com/jhdPiyf08c
#Nfield looks at dryland corn condition in Northeast, NE. Keep scouting as move into #harvest20— Megan Taylor (@CropTalkMegan) September 1, 2020
Check out your stalks, use the push/pinch test to check standability!
Look for early ear droop and pull back husks to check grain quality!@UNL_CropWatch @ColfaxCountyExt #nebext pic.twitter.com/XRbXwg644L
#Silage20 harvest is underway! Getting the right moisture content is key to a quality end product. Check it out on this #ForageFocus edition of #Nfield! @CropTalkMegan @ForagesGuy @UNL_CropWatch @UNLBeef— Ben Beckman (@HuskerHerdsman) August 29, 2020
60-70% moisture is ideal
Use plant maturity
Squeeze test pic.twitter.com/ZIohFTtflQ
#NField Reports - August 24-28, 2020
This week, Brad Schick talks about silage, Chuck Burr discusses scheduling the last irrigation for sorghum, and Kat Caswell shows the advantages of controlling Eastern Redcedar trees.
It's #silage season! Inoculants can help fermentation and reduce dry matter losses. #ForageFocus on #Nfield!#NEBeefExt #Nebext @UNL_CropWatch @CropTalkMegan @HuskerHerdsman @UNLBeef pic.twitter.com/HVDRggsGOS— Brad Schick (@ForagesGuy) August 22, 2020
#Nfield talks with @UNL_TAPS Chuck Burr about scheduling the last irrigation for sorghum! @UNL_CropWatch @NESorghumBoard @SorghumCheckoff @ColfaxCountyExt— Megan Taylor (@CropTalkMegan) August 27, 2020
Get crop growth stage!
Check out https://t.co/RJMdd1QNqC for water needed to finish crop!#nebext #irrigation pic.twitter.com/XMv3lR4RD8
#NField Reports - August 17-21, 2020
This week, Ben Beckman talks about proper long term storage of bales, Megan Taylor discusses planting alfalfa in the fall, and Aaron Nygren and Chuck Burr share how to know how much to irrigate corn and soybeans as the season comes to an end.
There still might be some bales in bring in yet this year, but planning out proper long term storage can decrease losses and maintain quality this fall/winter. #ForageFocus on #Nfield! #Hay #NEBeefEx #Nebext@UNL_CropWatch @CropTalkMegan @ForagesGuy @UNLBeef pic.twitter.com/vnwaSKoDxC— Ben Beckman (@HuskerHerdsman) August 15, 2020
#Nfield talks fall planting alfalfa, with fall coming remember the big 3!— Megan Taylor (@CropTalkMegan) August 18, 2020
Plant six weeks before the first killing frost!
Moisture is key to getting good germination
Take care of lingering weed pressure with herbicide, tillage, or combo@UNL_CropWatch #alfalfa #nebext pic.twitter.com/HvKxJ08HBo
Tired of irrigating? Wondering when to quit? Chuck Burr and myself cover last #irrigation for #corn in this #NField Observation.— Aaron Nygren (@ColfaxCountyExt) August 20, 2020
Determine available water in profile
NebGuide G1871 covers the calculations https://t.co/c2c8bQQ41I@UNL_CropWatch #NebExt pic.twitter.com/w6giFLNSyf
How much water do soybeans still need? Chuck Burr and myself cover last #irrigation for #soybeans in this #NField Observation.— Aaron Nygren (@ColfaxCountyExt) August 20, 2020
Check your soybean growth stage
Determine available water in profile
NebGuide G1871 covers the calculations https://t.co/c2c8bQQ41I@UNL_CropWatch pic.twitter.com/J4FiBBMCkp
#NField Reports - August 10-14, 2020
This week, Tamara Jackson-Ziems shares about phytophthora, Ben Beckman talks about assessing alfalfa stands, Kat Caswell discusses making silage from corn and John Thomas explores herbicide options in dry beans.
#Nfield talks with @tjcksn about #phytophthora! This isn't just a seedling disease, damage can still be seen and be confused with #soybeangallmidge @justinmcmechan, but look for lesions higher on the stem for phytophthora and near the soil surface for gall midge! pic.twitter.com/v2syctNZI8— Nebraska CropWatch (@UNL_CropWatch) August 11, 2020
Assessing new alfalfa stands now can guide management this fall. Check out our latest #ForageFocus edition of #NField!— Ben Beckman (@HuskerHerdsman) August 8, 2020
>10 plants or 35-55 stems per sq. ft.#Alfalfa #NEBeefExt #StandCount #Nebext@UNL_CropWatch @ForagesGuy @CropTalkMegan @UNLBeef pic.twitter.com/mfmrgeg4FM
#NField Reports - August 3-7, 2020
This week, Tamara Jackson-Ziems shares about best management practices with fungicides as well as Northern Corn Leaf Blight, Megan Taylor talks about potato leafhopper and Aaron Nygren looks at corn ear formation.
Cigars aren't always a sign of celebration! #Nfield talks with @tjcksn about Northern Corn Leaf Blight #NCLB and options!— Megan Taylor (@CropTalkMegan) August 6, 2020
Look for cigar shaped lesions with a darker halo
Moderate, moist, and humid conditions favor this disease@UNL_CropWatch @corndisease #Nebext pic.twitter.com/PV8MXGa8v3
Don't just go off how #corn looks from the road, be sure to get out in the field and check! @CropTalkMegan and myself are looking at some of the issues that heat and #drought might be causing in your fields in this #NField Observation. @UNL_CropWatch #NebExt pic.twitter.com/4naX77puQI— Aaron Nygren (@ColfaxCountyExt) August 6, 2020
#Nfield talks with @tjcksn about best management practices with #fungicides, #profitability, and timing! @corndisease @UNL_CropWatch Check out https://t.co/rReYNBdvij @TakeActionWeeds for resistance information for fungicides. pic.twitter.com/pUhwamuanL— Megan Taylor (@CropTalkMegan) August 4, 2020
#Nfield talks potato leafhopper! Every Saturday look for forage related info!— Megan Taylor (@CropTalkMegan) August 1, 2020
Look for yellow hopperburn
Check fields after mowing/spraying, PLH is mobile!
Insecticide tables are here (https://t.co/r1aEzVdovT) @UNL_CropWatch @HuskerHerdsman @ForagesGuy #PLH #alfalfa pic.twitter.com/5p3uFoOVwC
#NField Reports - July 27-31, 2020
This week, Tamra Jackson-Ziems talks about souther rust and frogeye leaf spot, Steve Melvin shares helpful information on irrigation scheduling, and Kyle Broderick shows how the UNL Plant and Pest Diagnostic Clinic confirms southern rust.
#Nfield talks with @tjcksn about southern rust! Check out https://t.co/CCy6ymXFtJ to see if your county has had confirmed samples. @corndisease— Megan Taylor (@CropTalkMegan) July 28, 2020
Scout fields for light orange to cinnamon red pustules
24 counties and counting in NE as of 7/28/20@UNL_CropWatch #nebext pic.twitter.com/A94j8fp4Kq
#Nfield focusing on diseases this week, @tjcksn updates us on #frogeye leaf spot and management options. Keep scouting corn and soybeans. While you check for frogeye drive over to your corn to check for #southernrust @soydisease @UNL_CropWatch @UNLPlantClinic #nebext pic.twitter.com/U6MhR9d5kI— Megan Taylor (@CropTalkMegan) July 31, 2020
Rain has been hit and miss this summer. Here is Steve Melvin, Extension Educator in Merrick and Hamilton counties with some "N" Field Observations on #irrigation scheduling. @UNL_CropWatch #NebExt— Aaron Nygren (@ColfaxCountyExt) July 30, 2020
For more info, see the July 16th CropWatch article at https://t.co/yaUNZNK9kG pic.twitter.com/IRmOJiIQpR
Sometimes #Nfield observations need to come inside to identify rots and spots. See how we confirm southern rust of corn in the Plant & Pest Diagnostic Clinic #PeskyPustules #DontGetCaughtWithYourPlantsDown @UNL_CropWatch @UNLExtension @tjcksn @ColfaxCountyExt @CropTalkMegan pic.twitter.com/wF0Q19X95V— UNLPlant&Pest Clinic (@UNLPlantClinic) July 24, 2020
#NField Reports - July 20-24, 2020
This week, John Thomas talks about Wheat Stem Sawfly and Ben Beckman discusses summer annuals as forage, Steve Melvin educates us on pivot safety and Aaron Nygren shares how to evaluate corn pollination.
#NField has gone west today to talk Wheat Stem Sawfly! Join John Thomas as he walks through ID & IPM!— Megan Taylor (@CropTalkMegan) July 21, 2020
Spring tillage in wheat fallow can reduce WSS emergence from stubble
Conservation of smooth brome and wheatgrasses increases parasitoid survival@UNL_CropWatch #wheat #WSS pic.twitter.com/ynkOIONQeJ
Lots of #irrigation happening this summer, so don't forget to be safe! Steve Melvin, Extension Educator in Merrick and Hamilton Counties, shares some center pivot safety tips in this #NField Observation. @UNL_CropWatch #NebExt pic.twitter.com/OWwVySobJe— Aaron Nygren (@ColfaxCountyExt) July 23, 2020
Don't be surprised at harvest, check pollination now! #Nfield talks pollination/shake test with @ColfaxCountyExt— Nebraska CropWatch (@UNL_CropWatch) July 23, 2020
Silks at the end of the ear are shortest and last to pollinate
Silks will detach 2 to 3 days after pollination
Check out pollination now
#NField Reports - July 13-17, 2020
This week, Chuck Burr and Julie Peterson talk about western bean cutworm, Amy Timmerman takes a look at soil compaction, and Megan Taylor has more electrical safety information.
#Nfield observations talking western bean cutworm #WBC with @PetersonInsects!— Megan Taylor (@CropTalkMegan) July 16, 2020
VIP3A provides reliable protection
Check out https://t.co/juRPAsB4iz for scouting tips from @BobWrightUNL @true_bug #TomHunt@UNL_CropWatch @UNL_TAPS #nebext pic.twitter.com/nVaPs4t4TG
#Nfield teams up @NPPDnews for more safety info!— Megan Taylor (@CropTalkMegan) July 14, 2020
Maintain a 10-ft clearance from lines, electricity can arc in the air between the line and the grounded equipment
Rubber tires won't insulate you they contain steel and carbon black, which conduct electricity.@UNL_CropWatch pic.twitter.com/cpsEm1WuU4
#NField Reports - June 28 - July 10, 2020
This week, Amy Timmerman talks about interceding cover crops in corn, Megan Taylor scouts for western bean cutworm, Tamra Jackson-Ziems discusses bacterial leaf streak in corn, and Aaron Nygren highlights this year’s soybean research.
#NField Observations highlights some @NebraskaSMFD research. For more information on SMFD visit https://t.co/gYc90g5b50. @UNL_CropWatch #NebExt @NESoybeanBoard— Aaron Nygren (@ColfaxCountyExt) July 9, 2020
3 Row Spacings
3 Planting Populations
Cover Crop vs No Cover
=72 Plots at 4 sites across Nebraska pic.twitter.com/KUeXhy8wZ6
#Nfield observations with Tamra Jackson-Ziems UNL Plant Pathologist @tjcksn talking Bacterial Leaf Streak (BLS) in corn.— Megan Taylor (@CropTalkMegan) July 9, 2020
Check for wavy lesions and yellow coloring
Scout fields for this disease
Fungicides are not effective@UNL_CropWatch @corndisease #nebext pic.twitter.com/KfoZ3RkAGh
Seeing Bacterial Leaf Streak in corn, this was found in Columbus NE. Remember to determine BLS vs. GLS before making management decisions. Tomorrow @tjcksn will be doing an #nfield regarding BLS so check back for more info! #nfield @corndisease @UNL_CropWatch pic.twitter.com/LMwZGJ8kko— Megan Taylor (@CropTalkMegan) July 8, 2020
#Nfield Observations talking Western Bean Cutworm and early scouting, here are tools to check out!— Megan Taylor (@CropTalkMegan) June 30, 2020
https://t.co/d01hCsSDbO @PetersonInsects @BobWrightUNL @true_bug & Jeffrey Cluever
https://t.co/rFSDxTNLH0 for GDDs
https://t.co/5hLyONcLWv for light trap data@UNL_CropWatch pic.twitter.com/KilzyhCAhb
#NField Reports - June 22-26, 2020
This week, Megan Taylor shares tips for avoiding power lines while spraying as well as what to do if you have an incident, Steve Melvin talks about irrigating vegetative corn, and Kat Caswell talks about hairy vetch for those new to cover crops.
#Nfield Observations teamed up with @NPPDnews to talk safety around power lines!— Megan Taylor (@CropTalkMegan) June 25, 2020
⚡️Remember maintain a minimum 10-foot clearance from lines, electricity can arc through the air between the line and the grounded equipment.
⚡️Look up and be safe! @UNL_CropWatch #nebext #NPPD pic.twitter.com/8GSCwzXqlz
#Nfield Observations partnered with @NPPDnews to bring some safety tips for avoiding power lines while spraying!— Megan Taylor (@CropTalkMegan) June 23, 2020
Look around & above you
Know the height of your booms & your power lines
Be safe & if you have questions call (877) 275-6773 #Nebext @UNL_CropWatch #nppd pic.twitter.com/sfOBlDUpT8
#NField observations is talking #irrigation on vegetative #corn with Steve Melvin. Lots more in the June 19 @UNL_CropWatch article: https://t.co/uPa4aK9oYC #nebext— Aaron Nygren (@ColfaxCountyExt) June 25, 2020
tolerates some stress early
Some soils may need earlier irrigation
Utilize sensors to help make decision pic.twitter.com/dAYyeRBsfg
#NField Reports - June 15-19, 2020
This week, Aaron Nygren looks at Iron Deficiency Chlorosis in soybeans including ways to avoid it, Megan Taylor is checking out rapid growth syndrome or twisted whorl corn as well as how the hot, dry weather is affecting alfalfa, and Kat Caswell looks at field pea conditions.
Soybeans Feeling Yellow? #NField Observations looks at #IDC or Iron Deficiency Chlorosis and some ways to avoid it. @UNL_CropWatch #NebExt— Aaron Nygren (@ColfaxCountyExt) June 17, 2020
pH, soil water, soil nitrates make IDC worse
Chelated iron, variety selection, companion crops, seeding rate can help pic.twitter.com/E8jRBXaHHV
Seeing sporadic lime green/bleached #corn? #Nfield is checking out rapid growth syndrome or twisted whorl corn in NE Nebraska today!— Megan Taylor (@CropTalkMegan) June 18, 2020
RGS can appear V5 up to V12
3 to 7 days to unroll and green up
Little to no effect on yield@UNL_CropWatch #nebext pic.twitter.com/eKC9eZzqIO
The hot, dry weather has put a damper on wheat disease spread, so let's do some #Nfield observations of what stage field peas are at (didn't find much disease or insect pressure here either). #Nebext pic.twitter.com/FXstE0IMzt— Kat Caswell (@KECCrops) June 17, 2020