We had a high BMSB report from Petersburg this week, capturing nearly 20 BMSB per night in their black light trap. This trap is in a prime location for detecting brown marmorated stink bug, being within 100 feet from woods with tree of heaven at the edge, and next to an organic area with lots of weeds. Other reporting stations had zero to 2.5 BMSB per night. Please see the acknowledgments in my corn earworm moth trap report, they also apply to the BMSB reports; and please see the attached table for more trap catch details. Additional information: bmsb-blacklight-table-12-pdf
Category Archives: Insect
Corn earworm moth black light trap captures for week ending July 19, 2012
Corn earworm moth catches were generally low this week, ranging from zero to 6.5 moths per night in area black light traps. Please see the attached table for more details. Thanks to the following for their reports: Laura Maxey (King William), Helene Doughty (Virginia Beach/Hampton Roads AREC), Roy Flanagan (Virginia Beach/West Neck), Mary Beahm (Warsaw/Eastern Virginia AREC), Mark Kraemer (Petersburg), Ames Herbert and crew (Suffolk/Tidewater AREC), Chris Drake (Southampton), and Keith Balderson (Essex). Additional information: blacklight-table-12-pdf
Brown marmorated stink bug black light trap captures for week ending July 12, 2012
Brown marmorated stink bug captures per night in area black light traps were as follows: Warsaw-0.4, Chesapeake-zero, Prince George (Templeton)-0.3, Prince George (Disputanta)-zero, Suffolk-zero, Sussex-zero, Petersburg-2.0, Southampton-zero, New Kent-zero. Thanks to Mary Beahm, Watson Lawrence, Scott Reiter, Ames Herbert, Kelvin Wells, Mark Kraemer, Chris Drake, and John Allison for their reports this week.
Corn earworm moth black light trap catches for week ending July 12, 2012
Corn earworm moth captures ranged from 0.1 to 23 per night in area black light traps. Most reporting locations were on the low side, however. Please see the attached file for more details. Thanks to Mary Beahm, Watson Lawrence, Scott Reiter, Ames Herbert, Kelvin Wells, Mark Kraemer, Chris Drake, and John Allison for their reports. Additional information: blacklight-table-12-pdf
Corn earworm (CEW) pyrethroid AVT update
We have tested another 166 moths since last week’s report and are seeing some improvement, maybe. This recent batch showed a drop to only 17.4 percent surviving the AVT challenge, making a 28.2 percent average survivorship for the seasonal 538 total tested—down a bit from the 31.2 percent survivorship reported last week. Before giving a sigh of relief, study the data from last season (see the attached line graph) and you will see an almost identical pattern with the same slight drop in early June of 2011 followed by a peak exceeding 50 percent survivorship. Stay tuned for more updates. We are also finding what appears to be a high percent of sweet corn ears infested (we pulled a bunch this week at the research center for our respective family 4th of July cookouts). We will be initiating our annual field corn survey soon which gives us the best idea of the size of the CEW population we will be dealing with.
Additional information: cew-cypermethrin-va-july-5-2012-pptx
Corn earworm and BMSB black light trap catches for week ending July 5, 2012
The mean nightly number of corn earworm moths captured in area black light traps was low this week: King William-0.4, Warsaw-0.3, Petersburg-0.4, Prince George (Templeton)-0.4, Prince George (Disputanta)-0.3, Southampton-0.9, Suffolk-4.4. The mean nightly brown marmorated stink bug (BMSB) catch was: King William-0.1, Warsaw-0.3, Petersburg-0.9, Prince George (Templeton and Disputanta)-zero, Southampton-zero, Suffolk-zero. Thanks to Laura Maxey, Mary Beahm, Mark Kraemer, Scott Reiter, Chris Drake, and Ames Herbert for their reports this week.
Virginia Cotton Insect Scouting Schools—2012
Virginia Cooperative Extension Agents are hosting five Cotton Insect Scouting Schools this month. Ames Herbert and Jack Bacheler from NCSU (Windsor, VA meeting, only) will be presenting cotton and soybean insect pest status updates, management recommendations, and demonstrate scouting techniques. Contact the locale Agent for details.
July 16—10 am, Wakefield, VA, ET Drewery Farm (contact Kelvin Wells, VCE Agent, Sussex Co.,VA kewells2@vt.edu)
July 17—9 am, Ivor, VA, CPS Office (contact Chris Drake, VCE Agent, Southampton Co., VA chrisd17@vt.edu)
July 18—5 pm, Windsor, VA, Dairy Queen parking lot (contact Janet Spencer, VCE Agent, Isle of Wight Co., VA jaashle2@vt.edu)
July 19—10 am, Dinwiddie County, Lance and Randy Everett Farm (contact Mike Parrish, VCE Agent, Dinwiddie Co., VA mparrish@vt.edu)
July 19—6 pm, Newsoms, VA, Meherrin Office (contact Chris Drake)
Vegetable Field Day at Virginia State University July 18th
Dear Friend of Virginia Agriculture:
Attached is the flyer and the registration form for the 9th Annual Commercial Berry and Vegetable Field Day at Virginia State University that will take place on Wednesday, July 18, 2012 from 8:30 a.m. – 4:00 p.m. There is a no charge to attend.
If you are not able to participate in this event, please share this email with other growers who may be interested in attending this field day.
For registration please visit:
http://tinyurl.com/vsuvegday
OR mail the attached registration form to the address specified with a check or money order for the registration fee.
Please email Mark Klingman at mklingman@vsu.edu if you would like more information.
Thank you for helping us to promote this event.
Reza Rafie
Virginia State University Additional information: vsu-flyer—vegetable-field-day-2012-pdf
Corn earworm monitoring for sweet corn IPM
Sweet corn producers in Virginia are reaching the intensive pest management period for that crop. Corn earworm is the primary pest of sweet corn, and typically very few ears will escape infestation by this pest as the summer progresses. Monitoring the activity of moths on the farm can aid in the pest management decision making. In the Northern Neck of Virginia, Parker Farms are monitoring corn earworm pheromone traps. Nightly catch of moths at the traps indicate the flight activity of the pest, potential for egg laying on the silks, and concomitant larval infestation in the ear. The Parkers have reduced the number of insecticide sprays applied to sweet corn with this information, and have obtained damage-free sweet corn over the past two years. The exact action thresholds based on moth catch can very. University of Delaware IPM provides a good table and discussion of this. Click on the following URL. http://ag.udel.edu/extension/IPM/thresh/sweetcornsg.html
In general, catch of 10 or more moths per night is high and indicates the need for a short spray interval (every 2 or 3 days throughout silking period). Less than 10 moths per night indicates that you could increase your interval between sprays. If an average of less than 1 moth per night is caught, then spray intervals can possibly be once per week. However, corn earworm moth activity increase as we progress through the summer, and in many areas of Virginia, moth catch will exceed 10 per night though most of July and August.
So far, at Parker Farms in Oak Grove in the Northern Neck of Virginia, corn earworm catch has been low in the 3 pheromone traps with the exception of one night (June 26) in one trap, when 26 moths were caught in one night. Catch dropped to 3 the following night, and has since been virtually 0. We will be reporting these trap catch data on the VA Ag Pest Advisory each week throughout the summer. We thank Raef Parker for monitoring this pest in the Northern Neck and sharing these useful sweetcorn IPM data.
Corn earworm and BMSB black light trap catches for week ending June 28, 2012
Reporting locations had fairly low numbers of corn earworm moths this week, although they jumped a little in Suffolk. The mean number captured per night were as follows: Chesapeake-0.6, Petersburg-0.6, Prince George (Templeton)-0.8, Prince George (Disputanta)-0.6, Suffolk-11.7, Virginia Beach-0.3, Warsaw-0.3. Average brown marmorated stink bug (BMSB) nightly captures were: Chesapeake-zero, Petersburg-0.9, Prince George (both locations)-zero, Suffolk-zero, Virginia Beach-1.0, Warsaw-0.1. Thanks to Watson Lawrence, Mark Kraemer, Scott Reiter, Ames Herbert, Helene Doughty, and Mary Beahm for their numbers this week.