Events Calendar

July  2014
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Checking peanuts? Take your shovel! Unlikely stem rot expression found in south Delta.

Yesterday we found our first southern blight* damage to peanuts for 2014. The timing is not unusual, we generally start finding the disease when the crop canopy closes. What is unusual is where on the plants the disease was found.

Jason and I were in a large field of peanuts between Tchula and Greenwood. An occasional plant . . . → Read More: Checking peanuts? Take your shovel! Unlikely stem rot expression found in south Delta.

“It ain’t over till it’s over!” / Turnrow Talks

“It ain’t over till it’s over!” Amazing as it seems, several producers have not laid poly pipe. After the five plus inches of rainfall we received last week, some producers are questioning the need to lay pipe this late in the season. With harvest for corn and rice  within 30 days, does it make sense to . . . → Read More: “It ain’t over till it’s over!” / Turnrow Talks

Foliar Soybean Disease Update: July 20, 2014

Target spot of soybean.  Note the yellow halo around lesions typified by concentric rings.

Foliar diseases of soybean continue to be observed throughout the state. At present, no soybean rust has been detected in Mississippi. However, aerial web blight, downy mildew, frogeye leaf spot, and target spot have all been observed in light to severe situations depending on field location. . . . → Read More: Foliar Soybean Disease Update: July 20, 2014

Why did the Kernels near the Ear Tip not Fill?

Kernel Abortion

Incomplete kernel set is something you can’t ignore. These kernels often don’t fill because the plant can’t supply enough energy to support them. Therefore, if we want to improve our yields, we need to investigate reasons why the kernel set is less than desired, so we can improve in the future. . . . → Read More: Why did the Kernels near the Ear Tip not Fill?

Cotton Bacterial Blight Update: July 18, 2014 (UPDATED 7/21/2014)

Additional bacterial blight has been observed in the MS cotton production system. At present, 12 counties have been reported to contain infected cotton. . . . → Read More: Cotton Bacterial Blight Update: July 18, 2014 (UPDATED 7/21/2014)

Random Yellow Spots in Cotton Fields

Several calls have come in this week regarding random yellow spots in cotton fields.  While there are a multitude of things that may cause this, there seems to be an underlying theme in many cases.  Everyone is aware of the rainfall we have received this year.  As a result of season long moisture levels, oxygen supply . . . → Read More: Random Yellow Spots in Cotton Fields

Trap Counts, July 18, 2014

Bollworm moth counts were up sharply across the state this week, so higher bollworm larval pressure should be expected over the next 1-2 weeks. Southwestern corn borer counts were high in Quitman, Tallahatchie and Leflore counties, but low elsewhere. Most corn is past the vulnerable window, so only late-planted corn that has not reached dough stage should . . . → Read More: Trap Counts, July 18, 2014

Glyphosate Injury to Sweetpotatoes Adjacent to Field Roads

Maintaining clean and weed-free field roads around sweetpotatoes is thought to help minimize rodent injury and make access for crop scouting and monitoring more efficient. Roads are most often maintained weed-free with glyphosate applications. However, off-target movement of glyphosate onto adjacent sweetpotato plants can be problematic.

Sweetpotato vines exposed to glyphosate often exhibit chlorotic/yellow leaves and stems . . . → Read More: Glyphosate Injury to Sweetpotatoes Adjacent to Field Roads

Treating White Sugarcane Aphid: Decision Aid

wsca leaf

White sugarcane aphids (WSCA) have been blowing up quickly to treatable levels in several counties in Mississippi. Over the last few days here have been several field requiring treatments likely with more coming. Because this is a new pests for Mississippi, we have been following the lead of our colleagues in Texas and Louisiana who dealt with this in 2013. Below are some criteria that we put together based on what we know to date that will help in making a decision to treat WSCA. . . . → Read More: Treating White Sugarcane Aphid: Decision Aid

Corn Disease Update: July 14, 2014

Foliar corn diseases continue to be observed throughout MS. Even though common rust, gray leaf spot, northern corn leaf blight, and southern corn leaf blight continue to be observed at low levels, additional diseases have been encountered over the past two weeks. . . . → Read More: Corn Disease Update: July 14, 2014