Is this you? As a journalist, you can create a free Muck Rack account to customize your profile, list your contact preferences, and upload a portfolio of your best work.
Claim your profile
Articles by Glenn Studebaker
Arkansas Rice: Endigo ZC Approved for Rice Stink Bug Control
A Section 18 Emergency Exemption for the use of Endigo ZC for control of rice stink bug in rice has been authorized for the 2022 growing season. See the Endigo ZC Section 18 Label and Documentation. Rice stink bug numbers and control with lambda have varied greatly this year and depending on where you are in the state. In our assay work with lambda, we have rarely exceeded 65% control with a 1X rate; and no benefit has been observed for going above 1X.
Arkansas IPM Report - July 1, 2022
Moth Trap Sites We now have a webpage dedicated to pheromone trap catches for bollworm, tobacco budworm and southwestern corn borer. Trap catches for each species can be viewed by county. Users can click on the county to access a drop-down menu for each species. Updated moth numbers are posted as county agents report their numbers. You can access this information on the 2022 County Trap Catchespage of the University of Arkansas System Division of Agriculture, Cooperative Extension website.
Arkansas Wheat: Stink Bugs - To Spray or Not to Spray
We are starting to get calls about stink bugs in heading wheat. While it is not uncommon to find stink bugs in wheat after head emergence, they rarely cause economic damage. The predominant species showing up in wheat appears to be mostly rice stink bug with a few brown stink bugs as well.
Arkansas Sorghum: Harvest Aids - Products and Application
As we approach grain sorghum harvest, many are considering using a harvest aid. There are pros and cons to using a harvest aid. The greatest benefits are that they can dry down green plant and or weed material to allow quicker, more efficient harvest. Harvest aids can also shut down the plant and prevent late sucker head development which sometimes can cause harvest issues, especially if sucker heads are allowed to form late maturing grain.
Arkansas: Stored Grain Insect Control Starts With Proper Bin Sanitation
On-farm grain bin system. ©Debra L Ferguson Corn harvest is underway and some growers will be storing their grain on farm in bins for an extended period of time. Stored grain pests can cause significant losses if left unchecked. There is an entire complex of insects that can infest grain stored in bins. There are several weevils and other beetles as well as some caterpillars that will feed on grain during storage. Many of these species live for several months and some may live for up to 2 years.
Arkansas: Major Bollworm Flight Moving Through; Stink Bugs in Rice
Cotton In south Arkansas this past week there has been a huge flight of bollworm moths and these numbers are not being reflected in our moth traps. We think this is due to a large amount of pheromone in the air from the moths which is overwhelming the pheromone in the traps. I have been told that back in the day, when boll weevil numbers were extremely high, a similar phenomenon would occur.
Arkansas Insects: Moth Numbers Spiking, Plant Bugs Moving into Cotton
Soybean This past week much of the state saw a sharp increase in moth catches. This is right on time with our usual July 4th bollworm flight. Most years these moths are leaving corn, because it is normally done silking and are headed to beans and cotton. This isn’t most years. We have a lot of late planted corn and many of these moths are headed straight back into corn, the preferred host. Don’t get us wrong, there are worms in some fields they just are just more spotty than normal.
Arkansas: Keep an Eye Open for These Insect Pests
Corn earworm in soybeans. Soybean A few people have called this past week about finding 4 or 5 small corn earworms per 25 sweeps in blooming soybeans. In this situation the corn earworm virus (Heligen), might be a good option, especially with the low price of soybeans this year. Also, the likelihood of getting reinfested is substantial because of how late this crop is, and the virus may provide control of those later generations. Remember, this virus isn’t like a conventional insecticide.
Arkansas: Pest Scouting School, Jonesboro, May 30
Aaron Cato demonstrates field sweeping techniques in rice field. Photo: University of Arkansas A pest scouting school focusing on insects and diseases in cotton, corn, soybean, rice and grain sorghum will be conducted at the Craighead County Cooperative Extension Service Office in Jonesboro, AR on May 30. The County Office is located at 611 E. Washington Ave. The program will start at 8:00 AM.
Arkansas Cotton: Section 18 Received for Transform for Tarnished Plant Bug
The Arkansas State Plant Board has received authorization for a Section 18 Emergency Exemption for Transform WG on Cotton. The Emergency Exemption is effective June 1 through October 31, 2019. The exemption notice and forms to report Section 18 applications are attached and also available on the Plant Board website. All applications under this emergency exemption must be reported to the Plant Board.
Arkansas Cotton: Insecticide Termination Rules
The growing season is winding down and growers are faced with the decision on when they can stop spraying for insect pests without experiencing yield loss. Extensive research has been conducted in the past on terminating insecticide applications in cotton based on crop termination. Cutout is reached in cotton when the number of nodes above the uppermost white bloom on the first position is equal to five (NAWF=5).
How to Manage Spider Mite Outbreaks in Arkansas
We’re seeing quite a few fields with spider mites in Arkansas, some at pretty high levels. Many fields have been treated for plant bugs and/or bollworms several times, so beneficial insect populations have pretty much been knocked out. This has caused spider mite populations to increase in the absence of their natural enemies. Our recommended treatment level is when 50% of the plants are infested, and the population is growing.
Arkansas Cotton: Spider Might Control Options
We’re seeing quite a few fields with spider mites. Some at pretty high levels. Many fields have been treated for plant bugs and/or bollworms several times, so beneficial insect populations have pretty much been knocked out. This has caused spider mite populations to increase in the absence of their natural enemies. Our recommended treatment level is when 50% of the plants are infested and the population is growing.
Preventing Stored Grain Insects in On-Farm Storage Facilities
Corn harvest is just around the corner and some growers will be storing their grain on farm in bins for an extended period of time. Stored grain pests can cause significant losses if left unchecked. There is an entire complex of insects that can infest grain stored in bins. There are several weevils and other beetles as well as some caterpillars that will feed on grain during storage. Many of these species live for several months and some may live for up to 2 years.
Arkansas Cotton: Tarnished Plant Bugs - Insecticide Rainfastness
Tarnished plant bug numbers are picking up in cotton and with pop-up rainfall we experience this time of year, we are getting calls on how long an insecticide needs to be on the plant before it is rainfast. The longer an insecticide is on the plant, the better. Most products need to be on the plant for at least 6 to 12 hours before it rains without losing too much of their effectiveness. If rain is in the forecast, what should a grower do?
Arkansas Corn: Southwestern Corn Borer Numbers Spiking
We have seen a significant increase in southwestern corn borer moths in pheromone traps in Monroe and Woodruff Counties this week. Traps in south Woodruff county near Cotton Plant are catching over 100 moths per trap. Northern Monroe county is seeing some traps hitting near 300 moths in the area that had high infestations last year.
Arkansas: Row Crop Scouting School. McGehee, June 4
A pest scouting school focusing on insects and diseases in cotton, corn, soybean, rice and grain sorghum will be conducted at Hoots BBQ in McGehee, AR on June 4. The program will start at 8:00 AM. Identification of insects and their damage will be covered, along with scouting techniques and treatment thresholds. Important diseases of row crops will also be covered. The school is primarily for crop scouts and consultants, but is open to anyone who wishes to attend.
Arkansas: Row Crop Scouting School, Jonesboro, June 7
A pest scouting school focusing on insects and diseases in cotton, corn, soybean, rice and grain sorghum will be conducted at the Craighead County Cooperative Extension Service Office in Jonesboro, AR on June 7. The program will start at 8:00 AM. Identification of insects and their damage will be covered, along with scouting techniques and treatment thresholds. Important diseases of row crops will also be covered.
Arkansas Sorghum: Managing Sugarcane Aphids
Arkansas grain sorghum acreage has varied dramatically over the last few years due to grain prices and more recently due to the threat of sugarcane aphid. In 2017, Arkansas producers planted only approximately 9,000 acres. However with the recent increase in grain sorghum prices into what some producers would call a profitable level, more producers are considering growing grain sorghum again in 2018.
Arkansas Row Crops
Crop pest scouting schools will be conducted on May 24 (McGehee) and May 25 (Jonesboro), 2016. This year we have added sections on plant diseases. The schools are classroom setting, providing information on identification and scouting techniques for insect and disease pests of cotton, soybean, rice, corn and grain sorghum. We will also touch on diseases and insects in peanut at the Jonesboro school. The schools are open to anyone who wishes to attend. Lunch will be provided.
It’s time to put out southwestern corn borer traps
There was a significant increase in the number of acres of non-Bt corn planted in Arkansas last year, and it looks like this year is going to be similar. Southwestern corn borer is one of the more destructive pests of non-Bt corn hybrids. We generally see emergence of adult moths from overwintering in late May and/or early June in Arkansas.
Show More
loading
Actions
Is this you?
As a journalist, you can create a free Muck Rack account to customize your profile, list your contact preferences, and upload a portfolio of your best work.Get in touch with Glenn
Contact Glenn, search articles and posts on X, monitor coverage, and track replies from one place.
Learn more about Muck Rack