Back to homepage

Posts From Don Cook, Entomologist

Whiteflies in Cotton – July 24th, 2026

Whiteflies in Cotton – July 24th, 2026 Updated

🕔07:47, 27.Jul 2026

We have been getting questions about larger whitefly populations in cotton than we typically see. From what we have seen, I assume that the majority, if not all of them, are bandedwing whiteflies. Little data have been generated over the

Read Full Article
2026 Southwestern Corn Borer Monitoring Program – Week ending 7/25/2026

2026 Southwestern Corn Borer Monitoring Program – Week ending 7/25/2026 Updated

🕔08:10, 25.Jul 2026

Southwestern Corn Borer Trapping Program Week Ending July 25, 2026 County Traps Reporting Total Reported Avg/Trap Maximum/Trap Alcorn 3 0 0 0 Amite 2 0 0 0 Calhoun 1 0 0 0 Chickasaw 1 0 0 0 Claiborne 1 0

Read Full Article
Does Time of Day Affect Stink Bug Scouting in Soybeans?

Does Time of Day Affect Stink Bug Scouting in Soybeans? Updated

🕔13:26, 20.Jul 2026

Trials were conducted across the Midsouth to address this question. Across all locations, sweep net samples collected at 7 A.M. captured 34% more stink bugs than samples collected at 4 P.M. Total captures declined from 9.2 stink bugs per 25

Read Full Article
2026 Southwestern Corn Borer Monitoring Program – Week ending 7/18/2026

2026 Southwestern Corn Borer Monitoring Program – Week ending 7/18/2026 Updated

🕔08:47, 18.Jul 2026

Another week of extremely low numbers of SWCB detected across the state. As good growing conditions continue, many areas of the state are nearing physiological maturity, essentially outrunning any SWCB related issues. For this reason, traps will begin being picked

Read Full Article
2026 Southwestern Corn Borer Monitoring Program – Week ending 7/11/2026

2026 Southwestern Corn Borer Monitoring Program – Week ending 7/11/2026 Updated

🕔17:47, 10.Jul 2026

Southwestern Corn Borer Trapping Program Week Ending July 11, 2026 County Traps Reporting Total Reported Avg/Trap Maximum/Trap Alcorn 3 0 0 0 Amite 2 0 0 0 Calhoun 1 0 0 0 Chickasaw 1 0 0 0 Claiborne 1 0

Read Full Article
2026 Southwestern Corn Borer Monitoring Program – Week ending 7/4/2026

2026 Southwestern Corn Borer Monitoring Program – Week ending 7/4/2026 Updated

🕔13:42, 3.Jul 2026

Southwestern Corn Borer Trapping Program Week Ending July 4, 2026 County Traps Reporting Total Reported Avg/Trap Maximum/Trap Alcorn 3 0 0 0 Amite 2 0 0 0 Bolivar 1 2 2 2 Calhoun 1 0 0 0 Chickasaw 1 0

Read Full Article
2026 Southwestern Corn Borer Monitoring Program – Week ending 6/27/2026

2026 Southwestern Corn Borer Monitoring Program – Week ending 6/27/2026 Updated

🕔17:30, 26.Jun 2026

Southwestern Corn Borer Trapping Program Week Ending June 27, 2026 County Traps Reporting Total Reported Avg/Trap Maximum/Trap Alcorn 3 0 0 0 Amite 2 0 0 0 Calhoun 1 0 0 0 Calhoun 1 0 0 0 Chickasaw 1 0

Read Full Article
2026 Southwestern Corn Borer Monitoring Program – Week ending 6/19/2026

2026 Southwestern Corn Borer Monitoring Program – Week ending 6/19/2026 Updated

🕔16:49, 19.Jun 2026

Very low incidence of southwestern corn borers across trapping locations during the week of June 14th to June 20th. Southwestern Corn Borer Trapping Program Week Ending June 20, 2026 County Traps Reporting Total Reported Avg/Trap Maximum/Trap Alcorn 3 0 0

Read Full Article
2026 Southwestern Corn Borer Monitoring Program – Week ending 6/13/2026

2026 Southwestern Corn Borer Monitoring Program – Week ending 6/13/2026 Updated

🕔08:26, 12.Jun 2026

Very low incidence of southwestern corn borers across trapping locations during the week of June 7th to June 13th. Southwestern Corn Borer Trapping Program Week Ending June 13, 2026 County Traps Reporting Total Reported Avg/Trap Maximum/Trap Alcorn 3 0 0

Read Full Article
2026 Southwestern Corn Borer Monitoring Program – Week ending 6/6/2026

2026 Southwestern Corn Borer Monitoring Program – Week ending 6/6/2026 Updated

🕔17:44, 5.Jun 2026

Very low incidence of southwestern corn borers across trapping locations during the week of May 31st to June 6th. Southwestern Corn Borer Trapping Program Week Ending June 6, 2026 County Traps Reporting Total Reported Avg/Trap Maximum/Trap Alcorn 3 0 0

Read Full Article
2026 Southwestern Corn Borer Monitoring Program – Week ending 5/30/2026

2026 Southwestern Corn Borer Monitoring Program – Week ending 5/30/2026 Updated

🕔09:41, 30.May 2026

Southwestern corn borers were not detected in any of the trapping locations in any county during the week of May 24th-30th. Southwestern Corn Borer Trapping Program Week Ending May 30, 2026 County Traps Reporting Total Reported Avg/Trap Maximum/Trap Alcorn 3

Read Full Article
2026 Southwestern Corn Borer Monitoring Program – Week ending 5/23/2026

2026 Southwestern Corn Borer Monitoring Program – Week ending 5/23/2026 Updated

🕔09:24, 23.May 2026

Southwestern corn borers were not detected in any of the trapping locations in any county during the week of May 17th-23rd. Southwestern Corn Borer Trapping Program Week Ending May 23, 2026 County Traps Reporting Total Reported Avg/Trap Maximum/Trap Alcorn 3

Read Full Article
2026 Southwestern Corn Borer Monitoring Program – Week ending 5/16/2026

2026 Southwestern Corn Borer Monitoring Program – Week ending 5/16/2026 Updated

🕔14:31, 15.May 2026

This is the first southwestern corn borer report of the 2026 growing season. Traps are currently being deployed by extension agents across the major corn-producing counties in Mississippi. Southwestern Corn Borer Trapping Program Week Ending May 16, 2026 County Traps

Read Full Article

Section 18 Emergency Use Exemption for Courier in Rice for Management of Rice Delphacid Updated

🕔13:13, 6.Apr 2026

During 2025 rice delphacid infested rice in Texas, Louisiana, Arkansas, and Mississippi.  This pest is difficult to control.  As a result a Section 18 Exemption for Courier in rice for rice delphacid control was requested.  Mississippi recently received a Section

Read Full Article
2026 Row Crop County Meetings

2026 Row Crop County Meetings Updated

🕔11:24, 2.Feb 2026

Read Full Article
Two-Spotted Cotton Leafhopper 9.25.25

Two-Spotted Cotton Leafhopper 9.25.25 Updated

🕔15:23, 25.Sep 2025

Read Full Article
Two-Spotted Leaf Hopper State Distribution 9.19.25

Two-Spotted Leaf Hopper State Distribution 9.19.25 Updated

🕔10:08, 19.Sep 2025

Read Full Article
2025 Two-Spotted Cotton Leafhopper Distribution

2025 Two-Spotted Cotton Leafhopper Distribution Updated

🕔07:37, 12.Sep 2025

As of this week, the two-spotted cotton leafhopper has been confirmed in very low numbers in two counties within the state. We will continue monitoring populations throughout the fall and will resume surveillance efforts in the spring. For more information

Read Full Article
Two-Spotted Cotton Leafhopper / Cotton Jassid Update

Two-Spotted Cotton Leafhopper / Cotton Jassid Update Updated

🕔17:31, 8.Sep 2025

Over the past several weeks, we have been in communication with our colleagues in Florida, South Carolina, Georgia, and Alabama who have been battling the two-spotted cotton leafhopper (TSCL), also commonly referred to as the cotton jassid. The two-spotted cotton

Read Full Article
Rice Delphacid

Rice Delphacid Updated

🕔18:51, 6.Sep 2025

Rice delphacid is a non-native planthopper pest of rice.  This insect has occurred in the rice growing area of Southeast Texas since ca. 2015. It has been a sporadic problem in second crop or ratoon rice in this area.  During

Read Full Article
Southwestern Corn Borer Monitoring – Week ending 8/16/2025

Southwestern Corn Borer Monitoring – Week ending 8/16/2025 Updated

🕔17:09, 15.Aug 2025

Southwestern Corn Borer Trapping Program Week Ending August 9, 2025 County Traps Reporting Total Reported Avg/Trap Maximum/Trap Alcorn 3 0 0 0 Copiah 3 0 0 0 Lowndes 2 0 0 0 Madison 3 1 0.33 1 Marshall 2 0

Read Full Article
Southwestern Corn Borer Monitoring – Week Ending 8/9/2025

Southwestern Corn Borer Monitoring – Week Ending 8/9/2025 Updated

🕔11:52, 9.Aug 2025

Southwestern Corn Borer Trapping Program Week Ending August 9, 2025 County Traps Reporting Total Reported Avg/Trap Maximum/Trap Alcorn 3 0 0 0 Desoto 2 0 0 0 Lowndes 4 0 0 0 Madison 3 0 0 0 Marshall 3 0

Read Full Article
Southwestern Corn Borer Monitoring – Week ending 8/2/2025

Southwestern Corn Borer Monitoring – Week ending 8/2/2025 Updated

🕔10:25, 2.Aug 2025

Southwestern Corn Borer Trapping Program Week Ending August 2, 2025 County Traps Reporting Total Reported Avg/Trap Maximum/Trap Alcorn 3 0 0 0 Calhoun 1 0 0 0 Desoto 2 0 0 0 Grenada 4 0 0 0 Hinds 2 0

Read Full Article
Approved Section 18 for Intrepid 2F for Fall Armyworm in Rice

Approved Section 18 for Intrepid 2F for Fall Armyworm in Rice Updated

🕔10:06, 2.Aug 2025

In response to reports of fall armyworm infesting rice in Mississippi during early July. We requested a Section 18 use permit for Intrepid 2F in rice.  This was granted on August 1. Up to two applications may be made at

Read Full Article
Insecticide Termination Guidelines for Cotton and Soybean in Mississippi

Insecticide Termination Guidelines for Cotton and Soybean in Mississippi Updated

🕔11:26, 1.Aug 2025

As crops across Mississippi approach maturity, it’s critical to understand the appropriate timing for terminating insecticide applications in both cotton and soybean. Making these decisions at the correct time helps avoid unnecessary input costs without risking yield losses. Below are

Read Full Article