Reports continue to indicate moderate but variable infestations of TARNSIHED PLANT BUG in cotton. It’s time to switch over to drop cloth samples in most fields. The drop cloth is a preferred method of sampling for immatures, and remember the recommended treatment threshold is an average of Continue reading
Just a quick update … sugarcane aphids are now present statewide at some level, and there are some fields where treatment of grain, forage or sweet sorghum is needed. As for insecticide options, only Sivanto prime is labeled for use. The label in grain and sweet sorghum allows application at rates up to 10.5 oz/acre, however, I suggest a rate of 4 oz/acre. I’ve had excellent success with this rate.
Haywood County – Monday morning, July 17, 9:00 AM (Robert Thornton Farm, GPS: 35.469042, -89.397213). Location is field side on US-70/US-79/TN-1/1st St E approximately 1/4 mile north of Stanton, TN Link to Flyer
Henry County – Friday, July 21, 9:30 AM (Norwood Farms, 645 Norwood Road, Mansfield, TN) Link to Flyer
There have been no reports of stink bugs in cotton and populations in soybean remain unusually low. There have been some reports of spider mites and aphids in some cotton fields, but it is an increase in plant bugs numbers that is the most obvious change this week. Infestation levels are variable, but a higher numbers of adults and a few nymphs are present in many fields. This includes both tarnished plant bug and clouded plant bug in some areas. Below are a few reminders and suggestions for the coming 2-3 weeks. Continue reading
This is an update of an article from last year as a reminder about managing kudzu bug infestations in soybean.
As always, moth trapping data for the season can be found on the quick links menu (http://www.utcrops.com/BlogStuff/2017MothTrappingData.pdf). We are now catching a few more corn earworm (bollworm) moths, but nothing too startling. However, it is clear that the second generation moth flight for southwestern corn borer is underway, and we will catch even more moths next week. Keep in mind that there is a lot of variation among locations. It can be a waste of money to treat for southwestern corn borers based on trap catches that are not near your fields. You should be running a few Continue reading
As we move into the third week of squaring on many fields, with some earlier field having 12+ nodes, I’ve had some calls about plant bugs and aphids. Below are some points to consider for each of these pests. Continue reading
I’ve been watching kudzu bug populations on kudzu, and I am now seeing late-instar immature stages and next-generation adults. This means we will start seeing adults migrating into some soybean fields. With the mild winter and early spring, this migration will be sooner than we’ve seen in the past. We might have expected it to be larger also, but populations on kudzu do not seem especially high. A fungus (Beauveria bassiana) has helped considerably at reducing populations of kudzu bug , and I’m hoping we again see the benefits this year. You will notice a fuzzy white fungus growing on dead nymphs and adults when they are filled by Beauveria. Continue reading