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Weekly Field Crops Pest Report 2010

October 1, 2010           Volume 9 Number 21

1. View from the Field

2. Weather outlook - September 30, 2010

3. Clipboard Checklist

4. Contact Information

View from the Field

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This issue will be the last report for the 2010 growing season. We have enjoyed creating this weekly publication and hope you have found it informative, useful and timely. Thanks to the many Extension Educators, field scouts, and industry personnel who shared their field observations and other information this season. The importance of these inputs cannot be over emphasized for their enhancements to the timely value of the report

We will soon be sending our subscribers a survey via email to solicit feedback regarding perspectives on the usefulness of this publication to your efforts and suggestions for how to improve the report next season. We hope you will take time to complete and return the survey. We take your comments and suggestions seriously and have incorporated many of your suggestions to improve the publication over the years. Thank you for your interest. Hopefully we will see you next year!

This last week I found 2 western bean cutworm moths (WBCM) at SUNY Cobleskill. I had not check this trap in about three weeks so we are not sure when the moths were captured.  In total I found 3 WBCW moths in Cobleskill this season and 1 at the Cornell Research Farm in Valatie. I also found corn ear rots at the SUNY Cobleskill last week. The corn ear rot looked like Fusarium graminearum (pink-white). Fusarium graminearum can contain mycotoxin. In the same field there were leaf lesions that appeared to be northern corn leaf blight.

Weather outlook - September 30, 2010

Jessica Rennells
NOAA NE Climate Center, Cornell University

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Last week temperatures ranged from 3 to 9 degrees above normal. Precipitation ranged from .01 to 2 inches, most of the state had half to one inch of rain. The base 50 Growing Degree Days ranged from 25 to 100.

Todayís highs will be throughout the 60ís. Rain will continue throughout the day into tomorrow. Central and eastern NY are expected to receive the heaviest rains.  Totals of 2-5 inches are expected. Tonightís temperatures will be in the upper 40ís and 50ís.

Friday will be in the upper 50ís and low 60ís. Rain is possible in the morning as the low pressure system moves out and there is a chance of afternoon showers. Friday night will be in the mid 30ís to mid 40ís.Saturday highs will range from the mid 50ís to low 60ís with a chance for scattered showers.  Lows will be in the low to mid 40ís.

Sunday highs will be in the mid 50ís to low 60ís with a slight chance of showers. Overnight temperatures will be in the mid 30ís to low 40ís. Monday will be in the mid 50ís to low 60ís. Lows will be in the mid 30ís to low 40ís. Tuesdayís temperatures will be in the low to mid 60ís.   Lows will be in the upper 30ís and low 40ís.  Wednesdayís highs will be in the upper 50ís and low 60ís with a possibility of scattered showers.  Lows will be in the low to mid 40ís

The five day precipitation amounts will range from half an inch for western NY to over 5 inches. The 8-14 day outlook is showing below normal precipitation and neither above or below normal temperatures.

Clipboard Checklist

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  • Emergency contact information ("911", local hospital, Chem. Spill emergency contact, other?) posted in central posting area
  • Maintain crop records by field, including variety, planting date, pesticides used, nutrient inputs including manure, etc.
  • Watch for any patches of herbicide resistant weeds, weed escapes
  • Storage areas cleaned and ready to accept hay, soybean, corn harvests

Field Corn:

  • Note crop growth stage and condition
  • Foliar diseases, stalk rots and ear mold
  • Check for European corn borer, Western bean cutworm, foliar diseases (such as Gray Leaf spot and Northern Corn leaf blight), vertebrate injury (birds / deer), slugs, weed escapes, herbicide injury, nutritional deficiencies, etc.
  • Monitor weed populations noting presence of "who", "how many" and "where"

Alfalfa & Hay:

  • Monitor alfalfa seedings for weeds, for potato leafhopper & diseases.
  • Check established alfalfa stands for potato leafhopper, weed and disease problems.
  • Check established alfalfa stands for signs of alfalfa snout beetle infestations in counties known to have this pest.
  • Storage areas cleaned and ready to accept next harvest?


  • Note crop growth stage and condition
  • Evaluate stand for deer, weed assessment, white mold, foliar disease incidence, harvest timing

Dairy Cattle: Livestock Barn Fly Management:

  • Monitor animals and facilities for house fly and stable fly populations
  • Check facilities for favorable fly breeding conditions: (organic matter + moisture): leaks in watering systems, roof gutters for leaks and potential overspill, drainage,
  • Sanitation, sanitation, sanitation - clean animal resting areas, feed troughs, minimize source of moist organic matter i.e. fly breeding areas in barn and in adjacent animal loafing yard * Continue fly monitoring: install "3X5" index card fly speck monitoring cards throughout barn
  • Use, replenish, replace fly management materials: sticky fly tapes/ribbons, insecticide baits, natural enemies (parasitoids), fly population monitoring (3 x 5) spot cards
  • Continue release of purchased natural enemies (fly attacking parasitoids)

Dairy Cattle: Pasture Fly Management:

  • Monitor animals for presence of face flies, horn flies and stable flies. Action guidelines: face flies (average 10 per animal face), horn flies (average 50 / dairy, 200 / beef cattle per animal side), stable flies average 10 per animal  (all four legs)
  • Check feed bunk / water source locations for signs of stable fly breeding (moist undisturbed organic matter - spilled feed, round bales, etc.), minimize source of moist organic matter i.e. fly breeding areas in barn and in adjacent animal loafing yard
  • Check paddocks for forage quality / quantity, rotate as appropriate
  • Check paddocks for vegetation poisonous to livestock
  • Consider use of fly traps to help reduce deer, horse and stable fly populations


  • Pre-clean in and around grain storage bins in anticipation of soybean and grain corn harvests.
  • Keep areas around storage bins and silos clean and mowed


  • Note any repairs needed for recently used equipment: tractors, tillage implements, harvesting equipment, etc. as they are cleaned and serviced.
  • Calibrate manure spreaders - maintain records on amount spread per field


Emergency responder information on pesticide spills and accidents CHEMTREC:  800-424-9300

For pesticide information:

National Pesticide Information Center: 800-858-7378

To Report Oil and Hazardous Material Spills in New York State: NYS Department of Environmental Conservation Spill Response: 800-457-7362 (in NYS); 518-457-7362 (outside NYS)

Poison Control Centers: Poison Control Centers nationwide: 800-222-1222

If you are unable to reach a Poison Control Center or obtain the information your doctor needs, the office of the NYS Pesticide Coordinator at Cornell University, 607-255-1866, may be able to assist you in obtaining such information.

Contact Information

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Keith Waldron: NYS Livestock and Field Crops IPM Coordinator
Phone: (315) 787 - 2432
Fax: (315) 787-2360

Ken Wise: Eastern NYS IPM Area Educator: Field Crops and Livestock
Phone: (518) 434-1690
Fax: (518) 426-3316