RBSB Ditchbank Survey: Week of 4/26/21

As we move through the last week of April, we are finding RBSB in some locations in crimson clover. I have added the same time period for last year to give some perspective as to our numbers this year. Although, numbers were apparently not eliminated from the cold weather, they were in fact greatly reduced. The question going into this year is if we can race them to the end before they build back to treatable levels? I think this is highly likely on early to normal planted beans. However, in southern areas of the state and where beans are planted late, we may deal with them to some degree.

*Each week we sample, we will add to the previous weeks post with updated map and new counties

Over the next few weeks we will be posting RBSB Ditchbank survey information. Although we feel that we had a cold enough winter to greatly reduce populations, we will survey numerous areas of the state to determine overwintering survival and potential threat to our soybean farmers. As in previous years we welcome the data that our consultants, retailers, USDA, and other industry personal provide us on locations that you have sampled. We ask that if you help us out by sweeping crimson and white clover to simply provide us the total number of sweeps per site, county, and if possible GPS coordinates. Also, keep up with adults and nymphs separately. We have a new faculty member, Dr. Sam Ward, who will be working on a predictive model to determine threat of RBSB based on temperature, so the more data we generate the better. Thank you all again for your help.

RBSB ditch bank survey results from the week of April 26, 2021:

• Covington County: 3/500 Sweeps
• Rankin County: 0/200 Sweeps
• Montgomery County: 0/100 Sweeps
• Leflore County: 0/100 Sweeps
• Webster County: 0/100 Sweeps
• Choctaw County: 1/100 Sweeps
• Oktibbeha County: 0/100 Sweeps
• Winston County 1: 1/100 Sweeps
• Winston County 2: 1/100 Sweeps
• Noxubee County: 0/100 Sweeps
• Leake County: 0/100 Sweeps

*At this time all finds were adults

This time last year below:

RBSB ditch bank survey results from the week of April 27, 2020 :

• Yalobusha County 1/100 Sweeps
• Grenada County 1: 6/100 Sweeps
• Grenada County 2: 7/100 Sweeps
• Grenada County 3: 1/100 Sweeps
• Montgomery County 4/100 Sweeps
• Covington County 5/100 Sweeps
• Covington County 4/100 Sweeps

*Nymphs Present

RBSB ditch bank survey results from the week of April 19, 2021:

• Adams County 1: 1/500 Sweeps
• Adams County 2: 0/300 Sweeps
• Jefferson County 1: 0/200 Sweeps
• Jefferson County 2: 0/200 Sweeps
• Lowndes County 1: 0/100 Sweeps
• Lowndes County 2: 0/100 Sweeps
• Copiah County: 0/100 Sweeps

*At this time all finds were adults