Author Archives: Sean Malone

Save the date: Virginia/Northeastern North Carolina Cotton Field Day on July 20, 2017

You are invited to attend our cotton field day at the Virginia Tech Tidewater AREC on Thursday, July 20, 2017. The tour will begin promptly at 8:00 am, ending with lunch. The location is our research farm at 1045 Hare Road, Suffolk, VA. The event is free and open to the public, but pre-registration is required–please contact Gail White by phone at 757-657-6450 extension 430, or by email at guwhite@vt.edu by July 10th. Private Pesticide recertification credits (cat. 90, 91) are being offered. More information will be made available in the upcoming weeks. Thank you.

Potato Late Blight in North Carolina

The following advisory is posted on behalf of Dr. Steve Rideout:

Late blight was found on potato in Camden and Pasquotank counties in North Carolina over the weekend. We will be processing the samples to determine more information on race/fungicide sensitivity. In the meantime, growers are encouraged to scout their tomato and potato fields for the disease.  Preventative fungicide applications are recommended, particularly near the outbreak area in NC.

If you have questions please let us know.  You can access current recommended materials for late blight in the commercial and homeowner vegetable production guides.  Also, you can visit the following web page for more information on this disease:

https://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/ANR/ANR-6/ANR-6_pdf.pdf

This is a serious threat to potato and tomato production in the Commonwealth.  Please let us know if we can help.

Section 18 authorized for Transform WG for control of sugarcane aphid on sorghum in Virginia

In accordance with Section 18 of the Federal Insecticide, Fungicide, and Rodenticide Act, the EPA has authorized the Emergency Exemption use of Transform WG (active ingredient = sulfoxaflor) to be used on sorghum to control sugarcane aphid (Melanaphis sacchari) in specified Virginia counties. The authorization will expire November 30, 2017. Foliar applications may be made at 0.75-1.5 oz/acre, with a maximum of 2 applications per acre per year. Please refer to the product’s Section 18 registration for further information, including application directions (at the time of this writing, the 2016 version of the Section 18 is the one available on cdms.net [the 2016 version expires on April 8]). Micah Raub and others with the Virginia Department of Agriculture and Consumer Services are acknowledged for their assistance.

“Soil Management/Soil Fertility Seminars for Row Crops” meeting on March 16, 2017

We hope that you will be able to attend the meeting, “Soil Management/Soil Fertility Seminars for Row Crops” on March 16, 2017, from 9:00 AM – 12:00 PM at the Virginia Tech Tidewater AREC, 6321 Holland Rd, Suffolk, VA 23437. Here is the agenda:

9:00 AM – Introduction and Opening Comments, Dr. Hunter Frame

9:00 AM – 9:45 AM – Benefits of Conservation Tillage Systems/Introducing Cover Crops, Dr. Mark Reiter

9:45 AM – 10:30 AM – Nitrogen and Sulfur Management in Cotton Production, Dr. Hunter Frame

 10:30 AM – 10:35 AM – Break

10:35 AM – 11:05AM – Nitrogen Management in Corn and Winter Wheat Production, Dr. Mark Reiter

11:05 AM – 11:35 AM – Potassium Fertilization Requirement for Full Season and Double-Crop Soybeans, Dr. David Holshouser

11:35 AM – 12:00 PM – Potassium Nutrition of Cotton in Virginia: A look at Timing, Rate, and Source, Dr. Hunter Frame

Reminder for the 2017 Mid-Atlantic Strawberry Programs in Virginia Beach

The following is being issued on behalf of Roy Flanagan, Virginia Cooperative Extension ANR Agent, Virginia Beach (meeting information and registration forms can be found on my January 30, 2017 blog). This is a reminder for folks to register if you plan to attend any of the 2017 Mid-Atlantic Strawberry Programs in Virginia Beach. The room block with Fairfield Inns and Suites filled up quickly, we have increased that group of blocked rooms at the special rate of $86 per night.  If you tried to register and had issues, please email Roy Flanagan directly and he will get you in touch with the right person to get your room issues taken care of and get the reduced rate.

If you have questions, please contact Roy Flanagan.

Agriculture Extension Agent/ Virginia Beach

Office: 757-385-GROW (4769)

Email: RFlanaga@vbgov.com

Insect update for Sep. 29, 2016

The 2016 survey of Virginia soybean for brown marmorated stink bug (BMSB) and kudzu bug is now finished.  We would like to acknowledge the Virginia Soybean Board and the USDA/NIFA Extension Implementation Project for their funding support.  Since mid-July, scouts Ed Seymore, Jamie Hogue, and the Tidewater AREC entomology crew made 867 soybean field visits to 68 counties for this project.  Ed and Jamie traveled a combined 22,600 miles.  BMSB were found in 42 counties, with the highest populations coming from Bedford, Shenandoah, Rappahannock, and Orange Counties.  Please see the map for the BMSB densities.

BMSB_density_map_2016

Large numbers of green stink bug were reported in soybean in King George (11 greens per sample), Nelson (12), New Kent (10), Rappahannock (11), and Lunenburg (9); these beans were all in the R6 growth stage.  The threshold for R3-4 to R7 stages is 5 stink bugs per 15 sweeps.  Moderate green stink bug populations (approximately 3-5) were reported in most of the other counties surveyed this past week.  After R7 (beginning maturity),  the stink bug threshold is doubled.

Scouts reported less than one kudzu bug nymph per 15 sweeps this week.  Over the course of the season, kudzu bugs were found in soybean in 32 counties.  Here is the final kudzu bug map:

KB_map_29_Sep_2016We conducted 77 cypermethrin vial tests this week with 61% survival by corn earworm moths.  We plan to finish out the season with what we collect and test next week.  The seasonal average now stands at 43.1% survival.

AVT_29_Sep_2016Finally, our black light traps have been shut down for 2016.  The assistance of the participating Virginia Cooperative Extension Agents, growers, and Virginia Tech faculty and staff in this study is greatly appreciated.  Here are the final tables for this season:  BLT_29_Sep_2016