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Northwest Iowa Crop Update Newsletter
by Todd Vagts
ISU Extension Crops Specialist
Counties Served:  Carroll, Calhoun, Crawford, Ida, Monona, Pocahontas and Sac.

   
Welcome to my weekly Crop Update Newsletters.  The purpose of this newsletter is to keep those involved and interested in northwest Iowa agriculture updated on current news at ISU; to disseminate timely and helpful weather and crop production-protection information; to document what I am seeing in the field as I travel the seven county area;  and hopefully give insight and ideas for solving production problems as they happen. I encourage any thoughts and ideas as to how I can improve the newsletter as the season progresses.

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Other Issues: [2004][2003][2001]

Volume, No.

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Topics

Special Issues, Topics

bulletVol 2, No 30
December 19, 2002

bulletVol 2, No 30

bullet End of Year Evaluation
bullet Crop Advantage Conference
bullet Residue Mngt Survey Available
bullet ICIA Yield Data Available
bullet Updated soil test interpretations

Survey

PM 1688

ICIA Yield Data

bulletVol 2, No 29
November 29, 2002

bulletVol 2, No 29

bullet ISUE Extension Crop Advantage Conference
bullet
Soybean SCN Variety Publication
bullet Organic Acreage
bullet Soil Temperature On-Line
bullet Fall Application of Anhydrous Ammonia

 

bulletVol 2, No 28
October 07, 2002

bulletVol 2, No 28

bullet Calculating grain shrink
bullet
Ear drop in corn
bullet Purple seed stain in soybeans
bullet Livestock compensation program
 

bulletVol 2, No 27
September 30, 2002

bulletVol 2, No 27

bullet Hidden soybean yield losses
bullet Crop residues have feed value
bullet Manage crop residue to reduce soil erosion
bullet Minimize soil compaction
Aflatoxin in Corn

bulletVol 2, No 26
September 26, 2002

bulletVol 2, No 26

bullet Degree-day year summary
bullet Is your GMO corn approved for all markets?
bullet Website for Value Added Ag
bullet Aflatoxin in corn grain

Aflatoxin in Corn

bulletVol 2, No 25
September 16, 2002

bulletVol 2, No 25

bullet Most corn and soybeans reach physiological maturity
bullet How to determine soybean maturity
bullet On-farm storage of soybeans
bullet Calibrating your yield monitor
bullet Recent developments in plant and intellectual property rights

PM 1584, Cornstalk Testing

bulletVol 2, No 24
September 10, 2002

bulletVol 2, No 24

bullet Hot and dry week advances crop development
bullet
Scout for Stalk rot in corn
bullet Estimating corn dry down rates
bullet Test Corn Stalks to determine nitrogen sufficiency
bullet Give alfalfa a rest before winter

PM 1584, Cornstalk Testing

Corn Silage

bulletVol 2, No 23
August 26, 2002

bulletVol 2, No 23

bullet Castana WRDF Field Day
bullet Assess corn and soybean fields now for agronomic and pest problems
bullet Short husks and incomplete pollination
bullet Corn Smut in area corn fields
bullet Cercospora Leaf Blight in soybeans
bullet SDS in soybeans

Reduce Harvest Losses

Corn Silage

bulletVol 2, No 22
August 19, 2002

bulletVol 2, No 22

bullet WRDF Field Day
bullet Determine when to harvest corn for silage
bullet Hail damage assessment on reproductive stage corn and soybean
bullet Reduce harvest losses in lodged corn
bullet
Bean Leaf Beetle control

Reduce Harvest Losses

Corn Silage

bulletVol 2, No 21
August 12, 2002

bulletVol 2, No 21

bullet ISU WRDF Field Day
bullet Corn beginning to dent
bullet 2nd Gen BLB control strategies
bullet Cowpea Aphid
bullet Pasture nitrogen application

Estimate Corn Grain Yield

bulletVol 2, No 20
August 5, 2002

bulletVol 2, No 20

bullet DD50 accumulation and Corn development
bullet
Estimate corn grain yield
bullet Soybean pod fill begins
bullet Heat and moisture stress effects on crops
bullet 2nd generation ECB
bullet 2nd generation BLB

Estimate Corn Grain Yield

bulletVol 2, No 19
July 29, 2002

bulletVol 2, No 19

bullet  DD50 accum and Corn development
bullet  Determine pollination success
bullet  Soybean crop at full pod
bullet  Harvest corn early to meet forage needs
bullet  Late summer alfalfa seeding
bullet  Mng drought stressed alfalfa
bullet  Mid to late season insect pests

Western Bean Cutworm

Late Summer Alfalfa seeding

bulletVol 2, No 18
July 22, 2002

bulletVol 2, No 18

bullet DD50 accumul & Corn dvmt
bullet
Lodged corn recovery
bullet
WBC trap catch and scouting
bullet
Be on the lookout for spider mites
bullet
Mid to late season corn and soybean disease

Western Bean Cutworm

Lodged Corn

bulletVol 2, No 17
July 15, 2002

bulletVol 2, No 17

bullet DD50 accum and Corn dvmpt
bullet Corn lodging assessment
bullet Scout for WBC eggs  now
bullet 1st gen BLB peak emergence
bullet Corn RW beetles emerging
bullet Grasshoppers still in soybeans and corn
bullet Soybean leaf defoliation chart

Lodged Corn

bulletVol 2, No 16
July 8, 2002

bulletVol 2, No 16

bullet DD50 accum and Corn dvpt
bullet
Moisture Shortage
bullet
Soybean leaf cupping
bullet
WBC moths caught

bullet
1st Generation BLB emergence

Western Bean Cutworm

1st Generation BLB  emergence dates

bulletVol 2, No 15
July 1, 2002

bulletVol 2, No 15

bullet DD50 accum and Corn development
bullet Critical period in corn development
bullet Soybean begin flowering
bullet Scout for 1st generation Bean leaf Beetle
bullet Western Bean Cutworm monitoring

Western Bean Cutworm

1st Generation BLB  emergence dates

bulletVol 2, No 14
June 24, 2002

bulletVol 2, No 14

bullet DD50 Accum. and Corn development
bullet Soybean iron chlorosis
bullet Soybean Cyst  Nematode
bullet Grasshoppers control strategies
bullet Soybean Aphid in WC Iowa
bullet Do you really need to cultivate?

Oat Harvest

bulletVol 2, No 13
June 16, 2002

bulletVol 2, No 13

bullet DD50 accumul. and Corn development
bullet
Soybean Development
bullet
Hail damage assessment for corn and         soybeans

bullet
European Corn Borer Scouting and Thresholds

Hail Damage Assessment on Corn and Soybeans

bulletVol 2, No 12
June 10, 2002

bulletVol 2, No 12

bullet DD50 accumul. and Corn development
bullet
Soybean Development
bullet
Post emergence weed control options
bullet
Corn root disease in some fields
bullet
Monitor Alfalfa Regrowth

 

bulletVol 2, No 11
June 3, 2002

bulletVol 2, No 11

bullet DD50 accumulation and Corn development
bullet
Soybean Stand Evaluation
bullet
Bean Leaf Beetles
bullet
Stalk Borer Migration

Late Spring Nitrate Test PM-1714 (pdf)

bulletVol 2, No 10
May 27, 2002

bulletVol 2, No 10

bullet GDD Accumulation
bullet Corn nearing 4-leaf Stage
bullet Dust storms in Iowa?
bullet Late Spring Nitrate Test
Pictures of the May 22
Dust Storm

bulletVol 2, No 9
May 20, 2002

bulletVol 2, No 9

bullet Soil Temperature Warming
bullet DD50 accum. and Corn  development
bullet
Alfalfa Aphids and Spring Black Stem.
bullet Use Caution when POST applying herbicides in cool conditions.
bullet Over-winter BLB and feeding injury.
bullet Just how cold has it really been?
Alfalfa Aphids

Alfalfa Black Stem

bulletVol 2, No 8
May 13, 2002

bulletVol 2, No 8

bulletSoil Temperature Cools (again)
bulletDD50 accumulation and Corn Emergence
bulletCorn stand and yield potential
bulletRotary Hoe
bulletFarm Bill

 

bulletVol 2, No 7
May 5, 2002

bulletVol 2, No 7

bulletSoil Temperature Warming
bulletDD50 accumulation and Corn Emergence
bulletSoybean Inoculation
bulletSoybean Planting Rates
bulletBean Leaf Beetle & Bean Pod Mottle Virus
bulletIowa Bee Rule

 

bulletVol 2, No 6
April 28, 2002

bulletVol 2, No 6

bulletWeather comments from Elwynn Taylor,
bulletSoil Temperature,
bulletCorn GDD Accumulation,
bulletFlea Beatles and Stewart's Disease of Corn,
bulletBean Leaf Beetle Winter Survival,
bulletWindy Days and Herbicide Drift

 

bulletVol 2, No 5
April 22, 2002

bulletVol 2, No 5

Weather Update, Soil Temperatures; Corn emergence scouting; Corn GDD Accumulation; Anhydrous Ammonia injury to corn; Alfalfa Weevil

Herbicide Drift

bulletVol 2, No 4
April 15, 2002

bulletVol 2, No 4

Weather Update, Soil Temperatures; Corn Population and Emergence; Soybean disease and pest mngt; Tillage and Weed control; Soil Fertility Publications

 

bulletVol 2, No 3
April 08, 2002

bulletVol 2, No 3

Weather Update; Interpreting Seed Lab Results; Check Alfalfa for Winter-kill; Web Newsletters  

bulletVol 2, No 2
April 01, 2002

bulletVol 2, No 2

Planting Season Weather Update and Weather Data, Soil Temperature, Oat Seeding,  Nitrogen loss potential, Crop Management Newsletters Alfalfa Stand Evaluation

bulletVol 2, No 1
January 15, 2002

bulletVol 2, No 1

Newsletter survey, New Publications, Seed Selection, GMO Plantings, Important Dates  
       
       

Information on Portable Document Files (.pdf)

For more information on crop related topics in IA, visit the
Integrated Crop Management Newsletter web site.

 


NW Iowa Crops webpage ]

For questions or comments please respond to vagts@iastate.edu

This page last updated on 02/03/04

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