Described below are the most common nutrient related issues that occur in Mississippi rice production and a few distinctive characteristics to key on when trying to properly identify each issue in the field. Nutrient issues in rice can take on many appearances, but coupled with field histories some of the keys below will aid in identification. . . . → Read More: Keys to Diagnosing Common Nutrient Deficiencies in Rice
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 southern blight* expression found in south Delta.
Populations of the white sugarcane aphid are expanding and increasing across the state. We have confirmed the presence of white sugarcane aphid in grain sorghum in 7 counties in Mississippi (Fig 1) and there are likely more. The counties where white sugarcane aphids have been found include Bolivar, Washington, Humphreys, Quitman, Panola, Tunica and Oktibbeha. . . . → Read More: White Sugarcane Aphid Update and Impact on Midge Applications
With water being one of the most expensive inputs of the rice producer, utilizing methods to limit the amount of water used makes economic sense.
Adoption of multiple inlet irrigation has allowed producers to reduce water consumption. Water use with multiple inlet has translated into an 18% (fig.2) reduction in water cost over straight levee . . . → Read More: Economic Benefits of Properly Managing Multiple Inlet Rice Irrigation
Bollworm trap catches were up in the Delta region this week to levels about normal for this time of year. Most bollworm eggs will be laid in corn at this time when many corn fields are at silk stage. University research has consistently failed to show any benefit from spraying for bollworms in field corn at this . . . → Read More: Trap Counts, June 20, 2014
Square retention is a critical component of early season plant bug management. I would strongly encourage you to take square retention counts along with your sweep net counts prior to bloom. Not only does this help in the decision making process of treating plant bugs, but it also helps you to get a better idea of how the products you are applying are working. Numbers alone can be deceiving when adults are steady moving into the field. When large numbers of adults are migrating into a field it is not uncommon to have as many or more plant bugs 4-5 days after a spray than you did before you sprayed and it still would not equate to a control failure. . . . → Read More: Importance of Monitoring Square Retention in Young Cotton
Over the last few days I have started getting calls about fall armyworms showing up in soybeans. We see some of this every year, and it is primarily related to larvae moving off of a grass host after a Roundup application kills the grass but this year it is much earlier than most.
Nearly every caterpillar pest species . . . → Read More: Armyworms Showing up in Grassy Fields Moving to Soybeans
I donâ€™t have to tell any of you the amount of rainfall we have had over the last several weeks. Most of the rainfall we have receiving has been high intensity rainfall (i.e. all coming down at once). High intensity rainfall followed by warm windy days can lead to significant soil compaction and crusting issues on . . . → Read More: Altered Corn Emergence – Compaction/Crusting Issues
Warm April weather in North Mississippi provides great growing conditions for sweetpotato plant beds. A few days near the 80s will have sweetpotato shoots pushing up the black plastic mulch that has been covering them since March. However, warm and humid conditions underneath plastic mulch can also provide an ideal environment for Southern blight, a disease . . . → Read More: Southern Blight and Sweetpotato Plant Beds
Wheat diseases remain extremely scarce throughout the MS wheat production system to date. No leaf rust, stripe rust, or Septoria have been observed to my knowledge. However, bacterial leaf streak has become a regular observation in most wheat fields. . . . → Read More: Wheat Disease Update: April 21, 2014