Stinkbug Threshold Research - September 2012
[University of Arkansas Division of Agriculture Research and Extension University of Arkansas System. Arkansas Soybean Promotion Board. Benjamin Thrash, Graduate Assistant Entomology, University of Arkansas Division of Agriculture, Lonoke Research and Extension Center]
[Video shows Thrash standing in an edamame research plot with plants and cages.] My name is Ben Thrash. I’m an entomology master’s graduate student. I am doing the study on edamame soybeans, which is a new crop to Arkansas. Behind us is a stinkbug threshold study where we infest each one of these cages with a different amount of stinkbugs. We have one stinkbug per row foot, one every two row feet and one every six row feet.
In this study, I’m looking at different stinkbug thresholds for edamame soybeans, so we can determine when a farmer needs to be able to treat his edamame fields for the control of stinkbugs.
The reason I’m doing this study is because the stinkbug threshold in conventional soybeans is a lot higher than what it will be in these edible soybeans that will go to market and go to restaurants, so they have to look a lot prettier.
Each one of these cages, I infest it with certain levels of stinkbugs and then seven days after treatment I kill them and then fourteen days after treatment I will eliminate them. So then we pull a certain number of pods out of the cages, take them back to the lab, die the pods and count the number of times that’s fed on the pods in each cage. So then we can determine an amount of damage associated with each level of stinkbugs. [Video shows a comparison of a conventional soybean pod versus an edamame pod.]
All of my research was funded by the Arkansas Soybean Promotion Board and I’d like to thank them also.
[For additional information visit www.uaex.edu. University of Arkansas Division of Agriculture Research and Extension University of Arkansas System. Arkansas Soybean Promotion Board]