Category Archives: Pest Group

Corn earworm report–August 20, 2020

Average nightly corn earworm/bollworm moth black light trap captures for this week were: Dinwiddie=51; Greensville=9; Hanover=3 (first week with more than 0.5 per night); Prince George-Templeton=12; Prince George-Disputanta=3; Southampton=5; Suffolk=17. Here is the Table. At just over 200 vial tests conducted, corn earworm moth survival is 39%.

Corn earworm report–August 13, 2020

Average nightly corn earworm/bollworm moth black light trap captures for this week were: Dinwiddie = 26; Greensville =4; Prince George-Templeton = 9; Prince George-Disputanta = 6; Southampton = 8; Suffolk = 23. Thanks to our Agents and Growers for their efforts. Here is the data table

Sally Taylor and her entomology program sampled a Cotton Incorporated sponsored planting date experiment today at the Tidewater AREC in Suffolk, VA. We found 2 to 6.5% bollworm-injured bolls in conventional (non-genetically protected against bollworm) cotton. In our Virginia Soybean Board experiment with maturity groups 4 and 5 full-season soybean (beginning pod growth stage), we had 2.3 to 5 corn earworm larvae and up to 3 soybean looper larvae per 15 sweeps.

Corn earworm update for July 30, 2020

Black light trap nightly averages for corn earworm/bollworm moths this week in Virginia were: Greensville = 35.6; Prince George-Templeton = 1.0; Prince George-Disputanta = 3.3; Southampton = 2.0; Suffolk = 17.1 (all reports were higher than last week). Thanks to our Agents for their reports.

Resistance monitoring of corn earworm/bollworm using adult vial tests now has 50% of moths surviving the 24-hour exposure to the pyrethroid, cypermethrin at the 5 microgram/vial rate (76 vials tested to date, collected from Suffolk).

Corn earworm moth report for July 23, 2020

Prior to this week, corn earworm/bollworm moth counts have been low in southeast Virginia black light traps. For this week (July 17-23), average nightly catches of moths were: Greensville = 7.4; Prince George-Templeton = 0.3; Prince George-Disputanta = 0.7; Southampton = 1.5; Suffolk = 7.4. Thanks to the Virginia Cooperative Extension Agents who are operating traps this season.

We have tested 47 corn earworm/bollworm moths since June 23, 2020 in our pyrethroid resistance monitoring program. Moths are captured in pheromone traps and are exposed to 5 micrograms of cypermethrin inside a glass vial for 24 hours, then rated as dead/down/alive. Untreated controls (in acetone-only treated vials) are also evaluated to correct for control mortality. The average for the past month is 43% moth survival. High survival rates indicate an increased chance of pyrethroid control issues and the need to consider alternative chemistries if a spray is needed.

In a non-Bt corn experiment planted on April 9 at our research farm in Suffolk, VA, we had large corn earworm larvae in the ears last week. Now they have exited the ears and are pupating in the soil. It takes about 10 days for the moths to emerge–this flight out of corn is the one that we are concerned with in crops such as soybean, cotton, peanuts, and vegetables–the moths want to lay eggs on a good food source for their larvae. Please check back with the Advisory for more pest updates and recommendations.

Herbicide Resistant Weeds Workshops

CANCELLED! Due to Virginia Tech’s response to COVID-19 and out of concern for everyone, we are cancelling all of these workshops. We will reschedule after field season in Nov. or Dec.

Topics:

Common ragweed infesting a soybean field.
  • Herbicide Resistance- What is it and how did we get here?
  • Creating Effective Herbicide Plans
  • Integrated Weed Management of Palmer amaranth, common ragweed, and horseweed/marestail
  • Local Perspective on Weed Management
  • Putting It All Together: Creating a Weed Management Plan

CCA credits will be offered

Free lunch to start or end the program!

If you are a person with a disability and desire any assistive devices, services or other accommodations to participate in this activity, please contact the Extension office listed above or TDD* during business hours of 8:00 a.m. and 5:00 p.m. to discuss accommodations 5 days prior to the event. *TDD number is (800) 828-1120.

Virginia Cooperative Extension programs and employment are open to all, regardless of age, color, disability, gender, gender identity, gender expression, national origin, political affiliation, race, religion, sexual orientation, genetic information, veteran status, or any other basis protected by law. An equal opportunity/affirmative action employer.

Northern Neck Crops Conference – Warsaw, VA

The 2020 Northern Neck Crops Conference will be held Thursday, Jan. 16 at the Cobham Park Baptist Church, 13829 History Land Hwy Route 3, Warsaw, VA 22572. This year’s conference will include pesticide certification training, updates from FSA, NRCS, and SWCD, and several Specialists and Agents from Virginia Cooperative Extension that will cover a wide variety of topics. We look forward to seeing your there for a great day of learning and interaction with the experts. Lunch will be provided. Agenda detail are below.

Full Attendance to the conference has been approved for Private Pesticide Applicator Recertification in Category 90 & 91, and Commercial Categories 1A, 10, and 60.  The conference has also been approved for 1.0 Virginia Nutrient Management CEU and 4.0 CCA-CEU credits.

9:00 – 9:05           Welcome – Trent Jones, VCE – Northumberland & Lancaster

9:05 – 9:50           Using Cover Crops for Weed Control – Michael Flessner, VCE – Weed Science Specialist

9:50 – 10:35        Market Update Robert Harper, Virginia Farm Bureau -Grain Division Manager

10:35 – 10:40      Irrigation Resources – Julie Shortridge, VCE – Biological Systems Engineering Specialist

10:40 – 10:55      BREAK – Please visit with our sponsors!

10:55 -11:40       IPM Updates – Sally Taylor, VCE – Entomology Specialist

11:40 – 12:35      Weathering the Storm: How to Cultivate a Productive Mindset – Jeremy Daubert, VCE – Rockbridge County

12:35 – 1:15         LUNCH

1:15 – 1:20           Program Updates – Scott Hammond, NRCS – Soil Conservationist

1:20 – 1:25           Program Updates – Brandon Dillistin, NNSWCD – District Technical Manager

1:25 – 2:15           Corn and Small Grain Production Update – Wade Thomason, VCE – Grains Specialist

2:15 – 2:30           Break & Evaluations

2:30 – 3:00           Legal Updates – Robert Christian, Pesticide Investigator – VDACS

3:00 – 3:30           Safety Updates – Trent Jones & Stephanie Romelczyk, VCE – Northern Neck

3:30 – 3:40           Wrap Up & Paperwork

2020 Five County Agricultural Conference – King William, VA

The 2020 Five County Agricultural Conference will be held Wednesday, Jan. 15 at the King William Ruritan Club Building, 156 Ruritan Lane, King William, Virginia 23086. This year’s conference will include pesticide certification training, updates from FSA, NRCS, and SWCD, several Specialists and Agents from Virginia Cooperative Extension that will cover a wide variety of topics, and precision agriculture round-table discussion. In addition, you will be able to get your dicamba herbicide certification with training being offered by Don Cline of BASF. We look forward to seeing your there for a great day of learning and interaction with the experts. Lunch will be provided. Agenda detail are below.

Full Attendance to the conference has been approved for Private Pesticide Applicator Recertification in Category 90 and Commercial Categories 1A, 10, and 60.  The conference has also been approved for 1.5 Virginia Nutrient Management CEU, 2.5 Integrated Pest Management and 1.5 Crop Management CCA-CEU credits.

7:45 a.m.             Registration

8:15 a.m.             Grain Market Update, Robert Harper, Manager, Virginia Farm Bureau Grain Division

8:45 a.m.             Corn Update and Hybrid Selection – Dr. Wade Thomason

9:15 a.m.             Break

9:30 am.              Soybean basics and Soybean Variety Selection- Dr. David Holshouser, Extension Soybean Agronomist

10:00 a.m.           Crop Fertility and Fertilizers – Dr. Hunter Frame

10:30 a.m.           Precision Ag Discussion

11:45 a.m.            Cooperating Agencies (FSA, NRCS, and SWCD)

12:30 p.m.          Sponsored Lunch (Participants not seeking pesticide applicator recertification or Dicamba Certification are welcome

 to adjourn following lunch)

1:15 p.m.             Dicamba Certification – Don Cline, BASF Crop Protection

1:45 p.m.             Legal Update – Robert Christian, VDACS Pesticide Investigator

2:15 p.m.             Spill Response Activity – Robbie Longest/Mike Broaddus, Extension Agents, ANR, Essex and Caroline

3:00 p.m.             Wrap up paperwork and adjourn