facebook_pixel

Keep Spider Mites in Mind When Planning Burndown

From Cotton Grower Magazine – February 2017

Photo credit: Joe MacGown

 

They’re out there, overwintering and waiting for the right time to appear.

“They” are two spotted spider mites. And growers should be looking for them now while planning their preplant burndown applications.

“In overwintering, spider mites are going to be just like most other insects, in that they are going to be influenced by temperature,” said Dr. Sebe Brown, LSU AgCenter Extension entomologist, while speaking at the Beltwide Cotton Conferences. “If growers go out and survey the weeds in their fields right now, they’re probably going to find red or orange adult females in diapause. As temperatures start getting warmer, the mites will transition back to their green color.

“If you see henbit and notice little red spots on it, take a close look,” he suggested. “It might be spider mites.”

Brown noted that henbit does a good job of holding soil in place, acting much like a cover crop. But it’s also a favorite hiding place for spider mites – much like other possible sources such as tree lines, and Palmer amaranth, soybeans and corn in-season.

“Some of the worst spider mite infestations we have in cotton come from tree lines,” pointed out Brown. “Research shows that spider mites will overwinter in the bark of trees. Come spring, they’ll emerge and balloon out over the trees.”

Growers should keep a few considerations in mind to help manage spider mite problems:

  • Early season spider mite outbreaks are more common following poor or late pre-plant burndown of weeds. “We see this every year, especially when we get plenty of late winter or early spring rainfall where growers can’t get in the field on a timely basis,” said Brown.
  • Hot, dry weather is also a good guarantee of outbreaks. “In areas where growers don’t get good rainfall, they can anticipate problems with spider mites,” he cautioned. “In hot, dry conditions, it’s not a question of if outbreaks will happen, but when.”
  • Insecticide applications targeting other pests can also a problem in spider mite control. Brown noted that long-time products like acephate and pyrethroids take out beneficial insects that help naturally control spider mites, but have no activity on mites at all. “This also includes bifenthrin, which is labeled for use as a miticide,” said Brown. “We’re not getting any control from it, and it may be making the problems worse.”

Brown suggested that the most effective way to manage spider mite outbreaks is to eliminate the green bridge in and around fields. It all begins with the preplant burndown.

“It’s important to get a good, complete burndown if possible,” he explained. You want a minimum of 4 to 6 weeks to give weeds time to desiccate. And as those weeds die, spider mites are going to concentrate to other green areas. If the green areas shrink, they’re going to overcrowd themselves and disperse.

“If growers can control green patches in their fields, it releases spider mites to look for another crop.”

 

Topics: , , ,

Leave a Reply

Insect Control Stories
Insect Control

Looking Ahead to Cutout and Terminating Insect Treatments

August 4, 2017

Although growers are still treating cotton insects, it’s appropriate to look ahead at proper timing for terminating those treatments.

Insect Control

Bollworms Attack Some Texas Cotton, Sorghum

July 14, 2017

Bollworm damage to cotton and grain sorghum is ramping up across parts of Texas.

Insect Control

Results of 2016 Insecticide Efficacy Survey Now Online

April 26, 2017

Results of the 2016 Insecticide Efficacy Survey for cotton, corn and soybeans are now available online.

Insect Control

Tennessee Receives Section 18 for Transform in Cotton

April 21, 2017

The EPA has again approved the Section 18 Emergency Exemption for use of Transform WG in Tennessee to control tarnished plant bugs in cotton.

thrips
Insect Control

New Online Tool Aids in Thrips Management Decisions

April 11, 2017

A new online tool is now available to help cotton growers better predict thrips infestations and determine options for treatment.

Insect Control

Plant Bugs Off to Warm Weather Start?

April 4, 2017

Warmer than usual winter weather could mean an earlier start for plant bugs in 2017.

Insect Control

Transform Receives Exemption for Plant Bug Control in Arkansas Cotton

March 30, 2017

Arkansas has been granted a Section 18 exemption for 2017 for use of Transform WG insecticide for management of tarnished plant bugs in cotton.

Around The Gin
Product News

Bayer Looking for FiberMax One Ton Club Growers for 2017

November 16, 2017

Cotton growers who produce an average of 2,000 lb/A on 20 or more acres planted to FiberMax varieties in 2017 are eligible to be part of the 13th annual FiberMax One Ton Club.

Product News

Monsanto Delays NemaStrike for Additional Review

November 2, 2017

After finding cases of skin irritation, Monsanto is pulling its nematode seed treatment NemaStrike for further product review.

Product News

Intrepid Trio: Naturally Balanced Nutrition in Every Granule

November 1, 2017

Intrepid Trio contains three essential nutrients for cotton plants.

Product News

Save Time, Increase Efficiencies with Mixmate

November 1, 2017

Mixmate from Praxidyn is a precision chemical mixing system for small farms to large enterprises.

Product News

Crumpler Ironworks & Fabrication

November 1, 2017

Crumpler Ironworks & Fabrication is committed to providing the highest level of service, honesty and integrity, regardless of project size.

Product News

Delivering Proven Performance Across the Cotton Belt

November 1, 2017

Seed varieties, traits and crop protection products from Bayer deliver proven performance to growers across the Cotton Belt.

Product News

Growers Continue to Count on Americot and NexGen

November 1, 2017

Americot is dedicated to working with cotton growers throughout the Cotton Belt to provide elite performing NexGen varieties within the marketplace.

Product News

Deere Adds New Narrow Track Versions to 9RX Tractor Lineup

November 1, 2017

John Deere has added three new 9RX Narrow Track Tractors, expanding its lineup of high-horsepower machines.

Latest News
Insect Control

Looking Ahead to Cutout and Terminating Insect Treatments

August 4, 2017

Although growers are still treating cotton insects, it’s appropriate to look ahead at proper timing for terminating those treatments.

Insect Control

Early Whitefly Detection Key to Successful Control

July 26, 2017

Whitefly populations are unusually high in Georgia cotton fields this season, making early detection and management essential.

Insect Control

How Aggressive Should Bollworm Treatments Be?

July 18, 2017

Mississippi State entomologists offer bollworm treatment suggestions based on what has been seen in fields to date and the Bt technologies used.

Insect Control

Bollworms Attack Some Texas Cotton, Sorghum

July 14, 2017

Bollworm damage to cotton and grain sorghum is ramping up across parts of Texas.

Insect Control

Results of 2016 Insecticide Efficacy Survey Now Online

April 26, 2017

Results of the 2016 Insecticide Efficacy Survey for cotton, corn and soybeans are now available online.

Insect Control

Tennessee Receives Section 18 for Transform in Cotton

April 21, 2017

The EPA has again approved the Section 18 Emergency Exemption for use of Transform WG in Tennessee to control tarnished plant bugs in cotton.

Insect Control

New Online Tool Aids in Thrips Management Decisions

April 11, 2017

A new online tool is now available to help cotton growers better predict thrips infestations and determine options for treatment.

Insect Control

Plant Bugs Off to Warm Weather Start?

April 4, 2017

Warmer than usual winter weather could mean an earlier start for plant bugs in 2017.

Insect Control

Transform Receives Exemption for Plant Bug Control in Arkansas Cotton

March 30, 2017

Arkansas has been granted a Section 18 exemption for 2017 for use of Transform WG insecticide for management of tarnished plant bugs in cotton.

Insect Control

Can Cover Crops Hamper Pest Management?

March 1, 2017

Growers will likely need to adjust their pest management practices to avoid crop losses when cover crops are used.

Insect Control

Keep Spider Mites in Mind When Planning Burndown

February 9, 2017

Spider mite management should be a consideration in every grower’s preplant burndown plans.

Insect Control

Insect Control Guide App Available from MS State

February 3, 2017

An app of the Mississippi State University 2017 Insect Control Guide is now available through the iTunes App Store, with an Android version coming soon.

Insect Control

Cotton Seed Treatment Choices Will Be More Important In 2017

January 26, 2017

Early season thrips control will be more important than ever in 2017 due to the introduction and anticipated use of dicamba-tolerant cotton varieties, according to Mississippi State University cotton specialists.

Insect Control

Insect Traits Evolving for Ongoing Bug Battles

September 8, 2016

As Mother Nature creates new challenges, the industry’s insect technologies must adapt.

Insect Control

When to Terminate Insecticide Applications in Cotton

August 24, 2016

The decision to terminate insect controls in cotton can be challenging in some fields, but a few basic considerations will assist in that decision.